{ "api_status": "preview", "generated_at": "2026-10-17T10:34:45.087Z", "notes": [ "Exact definitions of every field (unit, window, source): https://agentservicedirectory.com/fields", "tier says how a service was added, not a rating: reviewed entries come from our own listing files, with operator statements and hourly checks; discovered entries come from public agent registries, are not reviewed by a person, and are probed hourly to monthly depending on usage (schedule/1; see evidence.schedule_tier).", "evidence counts cover the last 30 days and are as of the latest refresh. missed_30d counts scheduled checks that did not run.", "For x402 endpoints a passing check means HTTP 402 with a valid payment challenge (discovered: on a mainnet network). It does not show that a paid call succeeds or returns useful results.", "registry_usage figures are the registry's own numbers, not our measurements. name is untrusted text when name_source is registry.", "networks_source tells you whether networks were observed in a live challenge, listed by the registry, or stated by the operator.", "tags describe purpose: our capability tags for reviewed entries, the registry's tags (sanitised, untrusted) for discovered ones. price_usd is the lowest price per call in US dollars: for discovered entries from the registry's payment terms (a known USD stablecoin), for reviewed entries from the operator's stated pricing (a claim, linked on the service page). price_source says which." ], "query": { "tag": "papers", "sort": "evidence", "limit": 50, "offset": 0 }, "total": 39, "items": [ { "id": "cand_73480c87f060673f", "tier": "discovered", "type": "api_endpoint", "name": "Elements Live", "name_source": "registry", "branches": { "primary": "calculate/math-science", "secondary": [], "method_version": "placement-rules/2", "tree_version": "tree/2", "placed_at": "2026-10-17T09:45:28.000Z" }, "host": "www.elements-live.com", "provider": "elements-live.com", "url": "https://www.elements-live.com/v1/subjects/search", "method": "GET", "templated_url": false, "operator": null, "tags": [ "science", "research", "materials", "chemistry", "papers" ], "category": null, "price_usd": 0.01, "price_source": "registry", "provider_endpoints": 9, "networks": [ "eip155:8453", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp" ], "networks_source": "observed", "payment_protocols": [ "x402" ], "mainnet": true, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T02:15:47.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 1, "passed_30d": 1, "missed_30d": 0, "pass_rate": 1, "freshness": "fresh", "last_check": { "at": "2026-10-17T02:51:09.851Z", "result": "payment_required", "passed": true, "http_status": 402, "duration_ms": 316 } }, "registry_usage": { "calls_30d": 10, "unique_payers_30d": 5, "note": "Reported by the registry; not our measurement." }, "payment_terms": { "current_since": "2026-10-17T02:51:09.851Z", "changes_30d": 0, "changes_90d": 0, "pay_to_changes_90d": 0, "last_change_at": null, "last_change_kinds": [], "window_start": "2026-10-17T02:15:47.000Z", "limited": true }, "registry_listing": { "last_seen_at": "2026-10-17T07:45:28.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_73480c87f060673f", "api": "https://agentservicedirectory.com/api/v1/services/cand_73480c87f060673f" } }, { "id": "cand_bcb783cda1a6d7a7", "tier": "discovered", "type": "api_endpoint", "name": "Elements Live", "name_source": "registry", "branches": null, "host": "www.elements-live.com", "provider": "elements-live.com", "url": "https://www.elements-live.com/v1/lab/quote", "method": "GET", "templated_url": false, "operator": null, "tags": [ "science", "research", "materials", "chemistry", "papers" ], "category": null, "price_usd": 0.01, "price_source": "registry", "provider_endpoints": 9, "networks": [ "eip155:8453", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp" ], "networks_source": "observed", "payment_protocols": [ "x402" ], "mainnet": true, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T02:55:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 1, "passed_30d": 1, "missed_30d": 0, "pass_rate": 1, "freshness": "fresh", "last_check": { "at": "2026-10-17T03:21:02.105Z", "result": "payment_required", "passed": true, "http_status": 402, "duration_ms": 483 } }, "registry_usage": { "calls_30d": 7, "unique_payers_30d": 5, "note": "Reported by the registry; not our measurement." }, "payment_terms": { "current_since": "2026-10-17T03:21:02.105Z", "changes_30d": 0, "changes_90d": 0, "pay_to_changes_90d": 0, "last_change_at": null, "last_change_kinds": [], "window_start": "2026-10-17T02:55:25.000Z", "limited": true }, "registry_listing": { "last_seen_at": "2026-10-17T02:55:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_bcb783cda1a6d7a7", "api": "https://agentservicedirectory.com/api/v1/services/cand_bcb783cda1a6d7a7" } }, { "id": "cand_d43d42497d3f84e7", "tier": "discovered", "type": "api_endpoint", "name": "FiatDock", "name_source": "registry", "branches": null, "host": "fiatdock.com", "provider": "fiatdock.com", "url": "https://fiatdock.com/v1/papers/search", "method": "POST", "templated_url": false, "operator": null, "tags": [ "research", "papers", "academic", "science", "search" ], "category": null, "price_usd": 0.009, "price_source": "registry", "provider_endpoints": 121, "networks": [ "eip155:8453", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp" ], "networks_source": "observed", "payment_protocols": [ "x402" ], "mainnet": true, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T03:05:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 1, "passed_30d": 1, "missed_30d": 0, "pass_rate": 1, "freshness": "fresh", "last_check": { "at": "2026-10-17T04:15:56.786Z", "result": "payment_required", "passed": true, "http_status": 402, "duration_ms": 226 } }, "registry_usage": { "calls_30d": 4, "unique_payers_30d": 3, "note": "Reported by the registry; not our measurement." }, "payment_terms": { "current_since": "2026-10-17T04:15:56.786Z", "changes_30d": 0, "changes_90d": 0, "pay_to_changes_90d": 0, "last_change_at": null, "last_change_kinds": [], "window_start": "2026-10-17T03:05:25.000Z", "limited": true }, "registry_listing": { "last_seen_at": "2026-10-17T03:05:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_d43d42497d3f84e7", "api": "https://agentservicedirectory.com/api/v1/services/cand_d43d42497d3f84e7" } }, { "id": "cand_13b11687d78c0257", "tier": "discovered", "type": "api_endpoint", "name": "ManyLives Tools", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/1", "tree_version": "tree/1", "placed_at": "2026-10-17T08:50:28.000Z" }, "host": "api.manylives.me", "provider": "manylives.me", "url": "https://api.manylives.me/paid/research/papers", "method": "GET", "templated_url": false, "operator": null, "tags": [ "agents", "research", "papers" ], "category": null, "price_usd": 0.005, "price_source": "registry", "provider_endpoints": 124, "networks": [ "eip155:8453", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp" ], "networks_source": "observed", "payment_protocols": [ "x402" ], "mainnet": true, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T02:10:47.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 1, "passed_30d": 1, "missed_30d": 0, "pass_rate": 1, "freshness": "fresh", "last_check": { "at": "2026-10-17T02:50:59.631Z", "result": "payment_required", "passed": true, "http_status": 402, "duration_ms": 278 } }, "registry_usage": { "calls_30d": 3, "unique_payers_30d": 3, "note": "Reported by the registry; not our measurement." }, "payment_terms": { "current_since": "2026-10-17T02:50:59.631Z", "changes_30d": 0, "changes_90d": 0, "pay_to_changes_90d": 0, "last_change_at": null, "last_change_kinds": [], "window_start": "2026-10-17T02:10:47.000Z", "limited": true }, "registry_listing": { "last_seen_at": "2026-10-17T06:45:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_13b11687d78c0257", "api": "https://agentservicedirectory.com/api/v1/services/cand_13b11687d78c0257" } }, { "id": "cand_3f70a884b3d8e1fe", "tier": "discovered", "type": "api_endpoint", "name": "Agent Hub", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/2", "tree_version": "tree/2", "placed_at": "2026-10-17T09:15:28.000Z" }, "host": "agents.torbrooknews.com", "provider": "torbrooknews.com", "url": "https://agents.torbrooknews.com/v1/papers", "method": "GET", "templated_url": false, "operator": null, "tags": [ "research", "papers", "academic", "science", "citations" ], "category": null, "price_usd": 0.003, "price_source": "registry", "provider_endpoints": 72, "networks": [ "eip155:8453", "eip155:137", "eip155:42161", "eip155:480" ], "networks_source": "observed", "payment_protocols": [ "x402" ], "mainnet": true, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T02:35:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 1, "passed_30d": 1, "missed_30d": 0, "pass_rate": 1, "freshness": "fresh", "last_check": { "at": "2026-10-17T04:25:56.807Z", "result": "payment_required", "passed": true, "http_status": 402, "duration_ms": 9 } }, "registry_usage": { "calls_30d": 2, "unique_payers_30d": 2, "note": "Reported by the registry; not our measurement." }, "payment_terms": { "current_since": "2026-10-17T04:25:56.807Z", "changes_30d": 0, "changes_90d": 0, "pay_to_changes_90d": 0, "last_change_at": null, "last_change_kinds": [], "window_start": "2026-10-17T02:35:25.000Z", "limited": true }, "registry_listing": { "last_seen_at": "2026-10-17T02:35:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_3f70a884b3d8e1fe", "api": "https://agentservicedirectory.com/api/v1/services/cand_3f70a884b3d8e1fe" } }, { "id": "cand_6339203aa31b1d5e", "tier": "discovered", "type": "api_endpoint", "name": "Citiview Agent Market", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/2", "tree_version": "tree/2", "placed_at": "2026-10-17T09:35:28.000Z" }, "host": "agents.citiviewgroup.com", "provider": "citiviewgroup.com", "url": "https://agents.citiviewgroup.com/v1/papers", "method": "GET", "templated_url": false, "operator": null, "tags": [ "research", "papers", "academic", "science", "citations" ], "category": null, "price_usd": 0.006, "price_source": "registry", "provider_endpoints": 206, "networks": [ "eip155:8453", "eip155:137", "eip155:42161", "eip155:480" ], "networks_source": "observed", "payment_protocols": [ "x402" ], "mainnet": true, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T04:20:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 1, "passed_30d": 1, "missed_30d": 0, "pass_rate": 1, "freshness": "fresh", "last_check": { "at": "2026-10-17T08:11:12.740Z", "result": "payment_required", "passed": true, "http_status": 402, "duration_ms": 5 } }, "registry_usage": { "calls_30d": 2, "unique_payers_30d": 2, "note": "Reported by the registry; not our measurement." }, "payment_terms": { "current_since": "2026-10-17T08:11:12.740Z", "changes_30d": 0, "changes_90d": 0, "pay_to_changes_90d": 0, "last_change_at": null, "last_change_kinds": [], "window_start": "2026-10-17T04:20:25.000Z", "limited": true }, "registry_listing": { "last_seen_at": "2026-10-17T08:10:28.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_6339203aa31b1d5e", "api": "https://agentservicedirectory.com/api/v1/services/cand_6339203aa31b1d5e" } }, { "id": "cand_044b0ce35fb504fd", "tier": "discovered", "type": "api_endpoint", "name": "Elements Live", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/1", "tree_version": "tree/1", "placed_at": "2026-10-17T08:40:28.000Z" }, "host": "www.elements-live.com", "provider": "elements-live.com", "url": "https://www.elements-live.com/v1/subjects/:subject_type/:subject_id/papers", "method": "GET", "templated_url": true, "operator": null, "tags": [ "science", "research", "materials", "chemistry", "papers" ], "category": null, "price_usd": 0.02, "price_source": "registry", "provider_endpoints": 9, "networks": [ "eip155:8453", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp" ], "networks_source": "observed", "payment_protocols": [ "x402" ], "mainnet": true, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T03:15:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 1, "passed_30d": 1, "missed_30d": 0, "pass_rate": 1, "freshness": "fresh", "last_check": { "at": "2026-10-17T03:56:09.555Z", "result": "payment_required", "passed": true, "http_status": 402, "duration_ms": 292 } }, "registry_usage": { "calls_30d": 3, "unique_payers_30d": 2, "note": "Reported by the registry; not our measurement." }, "payment_terms": { "current_since": "2026-10-17T03:56:09.555Z", "changes_30d": 0, "changes_90d": 0, "pay_to_changes_90d": 0, "last_change_at": null, "last_change_kinds": [], "window_start": "2026-10-17T03:15:25.000Z", "limited": true }, "registry_listing": { "last_seen_at": "2026-10-17T03:15:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_044b0ce35fb504fd", "api": "https://agentservicedirectory.com/api/v1/services/cand_044b0ce35fb504fd" } }, { "id": "cand_55081ac1f00147b9", "tier": "discovered", "type": "api_endpoint", "name": "Elements Live", "name_source": "registry", "branches": { "primary": "calculate/math-science", "secondary": [], "method_version": "placement-rules/2", "tree_version": "tree/2", "placed_at": "2026-10-17T09:25:28.000Z" }, "host": "www.elements-live.com", "provider": "elements-live.com", "url": "https://www.elements-live.com/v1/subjects/:subject_type/:subject_id/elements", "method": "GET", "templated_url": true, "operator": null, "tags": [ "science", "research", "materials", "chemistry", "papers" ], "category": null, "price_usd": 0.1, "price_source": "registry", "provider_endpoints": 9, "networks": [ "eip155:8453", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp" ], "networks_source": "observed", "payment_protocols": [ "x402" ], "mainnet": true, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T03:15:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 1, "passed_30d": 1, "missed_30d": 0, "pass_rate": 1, "freshness": "fresh", "last_check": { "at": "2026-10-17T03:56:09.427Z", "result": "payment_required", "passed": true, "http_status": 402, "duration_ms": 105 } }, "registry_usage": { "calls_30d": 2, "unique_payers_30d": 2, "note": "Reported by the registry; not our measurement." }, "payment_terms": { "current_since": "2026-10-17T03:56:09.427Z", "changes_30d": 0, "changes_90d": 0, "pay_to_changes_90d": 0, "last_change_at": null, "last_change_kinds": [], "window_start": "2026-10-17T03:15:25.000Z", "limited": true }, "registry_listing": { "last_seen_at": "2026-10-17T03:15:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_55081ac1f00147b9", "api": "https://agentservicedirectory.com/api/v1/services/cand_55081ac1f00147b9" } }, { "id": "cand_7342af4f6726fc93", "tier": "discovered", "type": "api_endpoint", "name": "Elements Live", "name_source": "registry", "branches": { "primary": "calculate/math-science", "secondary": [], "method_version": "placement-rules/2", "tree_version": "tree/2", "placed_at": "2026-10-17T09:45:28.000Z" }, "host": "www.elements-live.com", "provider": "elements-live.com", "url": "https://www.elements-live.com/v1/subjects/:subject_type/:subject_id", "method": "GET", "templated_url": true, "operator": null, "tags": [ "science", "research", "materials", "chemistry", "papers" ], "category": null, "price_usd": 0.01, "price_source": "registry", "provider_endpoints": 9, "networks": [ "eip155:8453", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp" ], "networks_source": "observed", "payment_protocols": [ "x402" ], "mainnet": true, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T03:15:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 1, "passed_30d": 1, "missed_30d": 0, "pass_rate": 1, "freshness": "fresh", "last_check": { "at": "2026-10-17T04:01:09.694Z", "result": "payment_required", "passed": true, "http_status": 402, "duration_ms": 101 } }, "registry_usage": { "calls_30d": 3, "unique_payers_30d": 2, "note": "Reported by the registry; not our measurement." }, "payment_terms": { "current_since": "2026-10-17T04:01:09.694Z", "changes_30d": 0, "changes_90d": 0, "pay_to_changes_90d": 0, "last_change_at": null, "last_change_kinds": [], "window_start": "2026-10-17T03:15:25.000Z", "limited": true }, "registry_listing": { "last_seen_at": "2026-10-17T03:15:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_7342af4f6726fc93", "api": "https://agentservicedirectory.com/api/v1/services/cand_7342af4f6726fc93" } }, { "id": "cand_8c19f657b6e32d39", "tier": "discovered", "type": "api_endpoint", "name": "Elements Live", "name_source": "registry", "branches": { "primary": "calculate/math-science", "secondary": [], "method_version": "placement-rules/3", "tree_version": "tree/2", "placed_at": "2026-10-17T09:55:28.000Z" }, "host": "www.elements-live.com", "provider": "elements-live.com", "url": "https://www.elements-live.com/v1/elements/:symbol/papers", "method": "GET", "templated_url": true, "operator": null, "tags": [ "science", "research", "materials", "chemistry", "papers" ], "category": null, "price_usd": 0.02, "price_source": "registry", "provider_endpoints": 9, "networks": [ "eip155:8453", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp" ], "networks_source": "observed", "payment_protocols": [ "x402" ], "mainnet": true, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T03:15:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 1, "passed_30d": 1, "missed_30d": 0, "pass_rate": 1, "freshness": "fresh", "last_check": { "at": "2026-10-17T04:01:09.901Z", "result": "payment_required", "passed": true, "http_status": 402, "duration_ms": 315 } }, "registry_usage": { "calls_30d": 3, "unique_payers_30d": 2, "note": "Reported by the registry; not our measurement." }, "payment_terms": { "current_since": "2026-10-17T04:01:09.901Z", "changes_30d": 0, "changes_90d": 0, "pay_to_changes_90d": 0, "last_change_at": null, "last_change_kinds": [], "window_start": "2026-10-17T03:15:25.000Z", "limited": true }, "registry_listing": { "last_seen_at": "2026-10-17T03:15:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_8c19f657b6e32d39", "api": "https://agentservicedirectory.com/api/v1/services/cand_8c19f657b6e32d39" } }, { "id": "cand_d629a01c8f67409e", "tier": "discovered", "type": "api_endpoint", "name": "Elements Live", "name_source": "registry", "branches": null, "host": "www.elements-live.com", "provider": "elements-live.com", "url": "https://www.elements-live.com/v1/elements/:symbol/history", "method": "GET", "templated_url": true, "operator": null, "tags": [ "science", "research", "materials", "chemistry", "papers" ], "category": null, "price_usd": 0.05, "price_source": "registry", "provider_endpoints": 9, "networks": [ "eip155:8453", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp" ], "networks_source": "observed", "payment_protocols": [ "x402" ], "mainnet": true, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T03:15:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 1, "passed_30d": 1, "missed_30d": 0, "pass_rate": 1, "freshness": "fresh", "last_check": { "at": "2026-10-17T04:05:57.671Z", "result": "payment_required", "passed": true, "http_status": 402, "duration_ms": 252 } }, "registry_usage": { "calls_30d": 2, "unique_payers_30d": 2, "note": "Reported by the registry; not our measurement." }, "payment_terms": { "current_since": "2026-10-17T04:05:57.671Z", "changes_30d": 0, "changes_90d": 0, "pay_to_changes_90d": 0, "last_change_at": null, "last_change_kinds": [], "window_start": "2026-10-17T03:15:25.000Z", "limited": true }, "registry_listing": { "last_seen_at": "2026-10-17T03:15:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_d629a01c8f67409e", "api": "https://agentservicedirectory.com/api/v1/services/cand_d629a01c8f67409e" } }, { "id": "cand_f3dfd718afaf974a", "tier": "discovered", "type": "api_endpoint", "name": "Elements Live", "name_source": "registry", "branches": null, "host": "www.elements-live.com", "provider": "elements-live.com", "url": "https://www.elements-live.com/v1/subjects/:subject_type/:subject_id/history", "method": "GET", "templated_url": true, "operator": null, "tags": [ "science", "research", "materials", "chemistry", "papers" ], "category": null, "price_usd": 0.1, "price_source": "registry", "provider_endpoints": 9, "networks": [ "eip155:8453", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp" ], "networks_source": "observed", "payment_protocols": [ "x402" ], "mainnet": true, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T03:15:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 1, "passed_30d": 1, "missed_30d": 0, "pass_rate": 1, "freshness": "fresh", "last_check": { "at": "2026-10-17T04:05:57.481Z", "result": "payment_required", "passed": true, "http_status": 402, "duration_ms": 114 } }, "registry_usage": { "calls_30d": 2, "unique_payers_30d": 2, "note": "Reported by the registry; not our measurement." }, "payment_terms": { "current_since": "2026-10-17T04:05:57.481Z", "changes_30d": 0, "changes_90d": 0, "pay_to_changes_90d": 0, "last_change_at": null, "last_change_kinds": [], "window_start": "2026-10-17T03:15:25.000Z", "limited": true }, "registry_listing": { "last_seen_at": "2026-10-17T03:15:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_f3dfd718afaf974a", "api": "https://agentservicedirectory.com/api/v1/services/cand_f3dfd718afaf974a" } }, { "id": "cand_2252df4537957333", "tier": "discovered", "type": "api_endpoint", "name": "Scientific Paper Search", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [ "documents/pdf-office" ], "method_version": "placement-rules/1", "tree_version": "tree/1", "placed_at": "2026-10-17T08:55:28.000Z" }, "host": "agentsvc.io", "provider": "agentsvc.io", "url": "https://agentsvc.io/api/v1/proxy/paper-search", "method": "POST", "templated_url": false, "operator": null, "tags": [ "papers", "research", "arxiv", "pubmed", "openalex" ], "category": null, "price_usd": 0.01, "price_source": "registry", "provider_endpoints": 124, "networks": [ "eip155:8453", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp", "eip155:137", "eip155:42161" ], "networks_source": "observed", "payment_protocols": [ "x402" ], "mainnet": true, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T03:30:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 1, "passed_30d": 1, "missed_30d": 0, "pass_rate": 1, "freshness": "fresh", "last_check": { "at": "2026-10-17T05:51:08.170Z", "result": "payment_required", "passed": true, "http_status": 402, "duration_ms": 519 } }, "registry_usage": { "calls_30d": 5, "unique_payers_30d": 2, "note": "Reported by the registry; not our measurement." }, "payment_terms": { "current_since": "2026-10-17T05:51:08.170Z", "changes_30d": 0, "changes_90d": 0, "pay_to_changes_90d": 0, "last_change_at": null, "last_change_kinds": [], "window_start": "2026-10-17T03:30:25.000Z", "limited": true }, "registry_listing": { "last_seen_at": "2026-10-17T03:30:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_2252df4537957333", "api": "https://agentservicedirectory.com/api/v1/services/cand_2252df4537957333" } }, { "id": "cand_817bfcc532d76449", "tier": "discovered", "type": "api_endpoint", "name": "SiteCheck", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/3", "tree_version": "tree/2", "placed_at": "2026-10-17T09:50:28.000Z" }, "host": "api.sitecheck-api.workers.dev", "provider": "sitecheck-api.workers.dev", "url": "https://api.sitecheck-api.workers.dev/api/research/papers", "method": "GET", "templated_url": false, "operator": null, "tags": [ "research", "papers", "openalex", "citations" ], "category": null, "price_usd": 0.002, "price_source": "registry", "provider_endpoints": 223, "networks": [ "eip155:8453", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp", "eip155:5042" ], "networks_source": "observed", "payment_protocols": [ "x402" ], "mainnet": true, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T04:00:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 1, "passed_30d": 1, "missed_30d": 0, "pass_rate": 1, "freshness": "fresh", "last_check": { "at": "2026-10-17T05:06:12.157Z", "result": "payment_required", "passed": true, "http_status": 402, "duration_ms": 68 } }, "registry_usage": { "calls_30d": 2, "unique_payers_30d": 2, "note": "Reported by the registry; not our measurement." }, "payment_terms": { "current_since": "2026-10-17T05:06:12.157Z", "changes_30d": 0, "changes_90d": 0, "pay_to_changes_90d": 0, "last_change_at": null, "last_change_kinds": [], "window_start": "2026-10-17T04:00:25.000Z", "limited": true }, "registry_listing": { "last_seen_at": "2026-10-17T04:25:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_817bfcc532d76449", "api": "https://agentservicedirectory.com/api/v1/services/cand_817bfcc532d76449" } }, { "id": "cand_86e6538ea34c988e", "tier": "discovered", "type": "api_endpoint", "name": "SiteCheck", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/3", "tree_version": "tree/2", "placed_at": "2026-10-17T09:55:28.000Z" }, "host": "api.sitecheck-api.workers.dev", "provider": "sitecheck-api.workers.dev", "url": "https://api.sitecheck-api.workers.dev/api/arxiv", "method": "GET", "templated_url": false, "operator": null, "tags": [ "arxiv", "papers", "preprints", "research", "science" ], "category": null, "price_usd": 0.001, "price_source": "registry", "provider_endpoints": 223, "networks": [ "eip155:8453", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp", "eip155:5042" ], "networks_source": "observed", "payment_protocols": [ "x402" ], "mainnet": true, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T04:25:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 1, "passed_30d": 1, "missed_30d": 0, "pass_rate": 1, "freshness": "fresh", "last_check": { "at": "2026-10-17T08:26:16.939Z", "result": "payment_required", "passed": true, "http_status": 402, "duration_ms": 22 } }, "registry_usage": { "calls_30d": 2, "unique_payers_30d": 2, "note": "Reported by the registry; not our measurement." }, "payment_terms": { "current_since": "2026-10-17T08:26:16.939Z", "changes_30d": 0, "changes_90d": 0, "pay_to_changes_90d": 0, "last_change_at": null, "last_change_kinds": [], "window_start": "2026-10-17T04:25:25.000Z", "limited": true }, "registry_listing": { "last_seen_at": "2026-10-17T07:55:28.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_86e6538ea34c988e", "api": "https://agentservicedirectory.com/api/v1/services/cand_86e6538ea34c988e" } }, { "id": "cand_31aefb52f52f6b6c", "tier": "discovered", "type": "api_endpoint", "name": "Tanod utilpeek", "name_source": "registry", "branches": { "primary": "documents/codes", "secondary": [ "search/academic" ], "method_version": "placement-rules/1", "tree_version": "tree/1", "placed_at": "2026-10-17T09:05:28.000Z" }, "host": "tanod.dev", "provider": "tanod.dev", "url": "https://tanod.dev/v1/papers/search", "method": "POST", "templated_url": false, "operator": null, "tags": [ "utilpeek", "papers", "search", "fx-rates", "qr-code" ], "category": null, "price_usd": 0.003, "price_source": "registry", "provider_endpoints": 266, "networks": [ "eip155:8453", "eip155:137", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp", "eip155:56", "eip155:42161" ], "networks_source": "observed", "payment_protocols": [ "x402", "mpp", "l402" ], "mainnet": true, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T03:05:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 1, "passed_30d": 1, "missed_30d": 0, "pass_rate": 1, "freshness": "fresh", "last_check": { "at": "2026-10-17T04:51:02.119Z", "result": "payment_required", "passed": true, "http_status": 402, "duration_ms": 1098 } }, "registry_usage": { "calls_30d": 2, "unique_payers_30d": 2, "note": "Reported by the registry; not our measurement." }, "payment_terms": { "current_since": "2026-10-17T04:51:02.119Z", "changes_30d": 0, "changes_90d": 0, "pay_to_changes_90d": 0, "last_change_at": null, "last_change_kinds": [], "window_start": "2026-10-17T03:05:25.000Z", "limited": true }, "registry_listing": { "last_seen_at": "2026-10-17T04:40:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_31aefb52f52f6b6c", "api": "https://agentservicedirectory.com/api/v1/services/cand_31aefb52f52f6b6c" } }, { "id": "cand_477bc76bc9d79261", "tier": "discovered", "type": "api_endpoint", "name": "x402 Web Search", "name_source": "registry", "branches": { "primary": "search/web", "secondary": [ "search/academic" ], "method_version": "placement-rules/2", "tree_version": "tree/2", "placed_at": "2026-10-17T09:20:28.000Z" }, "host": "search.cyberwarex.com", "provider": "cyberwarex.com", "url": "https://search.cyberwarex.com/papers", "method": "GET", "templated_url": false, "operator": null, "tags": [ "academic-search", "papers", "research", "arxiv", "pubmed" ], "category": null, "price_usd": 0.003, "price_source": "registry", "provider_endpoints": 35, "networks": [ "eip155:8453" ], "networks_source": "observed", "payment_protocols": [ "x402" ], "mainnet": true, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T02:45:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 1, "passed_30d": 1, "missed_30d": 0, "pass_rate": 1, "freshness": "fresh", "last_check": { "at": "2026-10-17T03:20:58.533Z", "result": "payment_required", "passed": true, "http_status": 402, "duration_ms": 399 } }, "registry_usage": { "calls_30d": 5, "unique_payers_30d": 2, "note": "Reported by the registry; not our measurement." }, "payment_terms": { "current_since": "2026-10-17T03:20:58.533Z", "changes_30d": 0, "changes_90d": 0, "pay_to_changes_90d": 0, "last_change_at": null, "last_change_kinds": [], "window_start": "2026-10-17T02:45:25.000Z", "limited": true }, "registry_listing": { "last_seen_at": "2026-10-17T02:45:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_477bc76bc9d79261", "api": "https://agentservicedirectory.com/api/v1/services/cand_477bc76bc9d79261" } }, { "id": "cand_0b1e48f767c304c9", "tier": "discovered", "type": "api_endpoint", "name": "AgentFeed", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/1", "tree_version": "tree/1", "placed_at": "2026-10-17T08:45:28.000Z" }, "host": "x402.ochinimus.app", "provider": "ochinimus.app", "url": "https://x402.ochinimus.app/api/papers", "method": "GET", "templated_url": false, "operator": null, "tags": [ "research", "papers", "academic", "openalex", "citations" ], "category": null, "price_usd": 0.0075, "price_source": "registry", "provider_endpoints": 83, "networks": [ "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp", "eip155:8453", "eip155:137", "eip155:42161", "eip155:5042", "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=", "eip155:10", "eip155:143", "eip155:43114" ], "networks_source": "observed", "payment_protocols": [ "x402", "mpp" ], "mainnet": true, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T05:00:25.000Z", "monitoring_days": 0.2, "limited_evidence": true, "checks_30d": 1, "passed_30d": 1, "missed_30d": 0, "pass_rate": 1, "freshness": "fresh", "last_check": { "at": "2026-10-17T05:06:26.181Z", "result": "payment_required", "passed": true, "http_status": 402, "duration_ms": 334 } }, "registry_usage": { "calls_30d": 1, "unique_payers_30d": 1, "note": "Reported by the registry; not our measurement." }, "payment_terms": { "current_since": "2026-10-17T05:06:26.181Z", "changes_30d": 0, "changes_90d": 0, "pay_to_changes_90d": 0, "last_change_at": null, "last_change_kinds": [], "window_start": "2026-10-17T05:00:25.000Z", "limited": true }, "registry_listing": { "last_seen_at": "2026-10-17T09:35:28.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_0b1e48f767c304c9", "api": "https://agentservicedirectory.com/api/v1/services/cand_0b1e48f767c304c9" } }, { "id": "cand_16ce6589d04c592d", "tier": "discovered", "type": "api_endpoint", "name": "paper-lookup-production-56b0.up.railway.app", "name_source": "registry", "branches": { "primary": "other", "secondary": [], "method_version": "placement-rules/1", "tree_version": "tree/1", "placed_at": "2026-10-17T08:50:28.000Z" }, "host": "paper-lookup-production-56b0.up.railway.app", "provider": "paper-lookup-production-56b0.up.railway.app", "url": "https://paper-lookup-production-56b0.up.railway.app/v1/papers/search", "method": "GET", "templated_url": false, "operator": null, "tags": [ "research", "papers", "doi", "citations", "crossref" ], "category": null, "price_usd": 0.005, "price_source": "registry", "provider_endpoints": 1, "networks": [ "eip155:8453" ], "networks_source": "observed", "payment_protocols": [ "x402" ], "mainnet": true, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T03:10:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 1, "passed_30d": 1, "missed_30d": 0, "pass_rate": 1, "freshness": "fresh", "last_check": { "at": "2026-10-17T03:56:23.262Z", "result": "payment_required", "passed": true, "http_status": 402, "duration_ms": 2610 } }, "registry_usage": { "calls_30d": 1, "unique_payers_30d": 1, "note": "Reported by the registry; not our measurement." }, "payment_terms": { "current_since": "2026-10-17T03:56:23.262Z", "changes_30d": 0, "changes_90d": 0, "pay_to_changes_90d": 0, "last_change_at": null, "last_change_kinds": [], "window_start": "2026-10-17T03:10:25.000Z", "limited": true }, "registry_listing": { "last_seen_at": "2026-10-17T08:55:28.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_16ce6589d04c592d", "api": "https://agentservicedirectory.com/api/v1/services/cand_16ce6589d04c592d" } }, { "id": "cand_264944ba72f9bbb2", "tier": "discovered", "type": "api_endpoint", "name": "AgentFeed", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/1", "tree_version": "tree/1", "placed_at": "2026-10-17T09:00:28.000Z" }, "host": "x402.ochinimus.app", "provider": "ochinimus.app", "url": "https://x402.ochinimus.app/api/paper/10.1038%2Fnature14539", "method": "GET", "templated_url": false, "operator": null, "tags": [ "research", "papers", "academic", "doi", "openalex" ], "category": null, "price_usd": 0.0025, "price_source": "registry", "provider_endpoints": 83, "networks": [ "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp", "eip155:8453", "eip155:137", "eip155:42161", "eip155:5042", "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=", "eip155:10", "eip155:143", "eip155:43114" ], "networks_source": "observed", "payment_protocols": [ "x402", "mpp" ], "mainnet": true, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T07:55:28.000Z", "monitoring_days": 0.1, "limited_evidence": true, "checks_30d": 1, "passed_30d": 1, "missed_30d": 0, "pass_rate": 1, "freshness": "fresh", "last_check": { "at": "2026-10-17T07:56:53.626Z", "result": "payment_required", "passed": true, "http_status": 402, "duration_ms": 297 } }, "registry_usage": { "calls_30d": 0, "unique_payers_30d": 0, "note": "Reported by the registry; not our measurement." }, "payment_terms": { "current_since": "2026-10-17T07:56:53.626Z", "changes_30d": 0, "changes_90d": 0, "pay_to_changes_90d": 0, "last_change_at": null, "last_change_kinds": [], "window_start": "2026-10-17T07:55:28.000Z", "limited": true }, "registry_listing": { "last_seen_at": "2026-10-17T08:10:28.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_264944ba72f9bbb2", "api": "https://agentservicedirectory.com/api/v1/services/cand_264944ba72f9bbb2" } }, { "id": "cand_f0071e2fc864b9a1", "tier": "discovered", "type": "api_endpoint", "name": "Saylor Innovations Publication ", "name_source": "registry", "branches": null, "host": "saylorinnovations.com", "provider": "saylorinnovations.com", "url": "https://saylorinnovations.com/api/research/search", "method": "GET", "templated_url": false, "operator": null, "tags": [ "research", "papers", "search", "citations" ], "category": null, "price_usd": 0.01, "price_source": "registry", "provider_endpoints": 800, "networks": [ "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp" ], "networks_source": "registry", "payment_protocols": [], "mainnet": null, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T03:20:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 0, "passed_30d": 0, "missed_30d": 0, "pass_rate": null, "freshness": "no_data", "last_check": null }, "registry_usage": { "calls_30d": 7, "unique_payers_30d": 3, "note": "Reported by the registry; not our measurement." }, "payment_terms": null, "registry_listing": { "last_seen_at": "2026-10-17T04:00:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_f0071e2fc864b9a1", "api": "https://agentservicedirectory.com/api/v1/services/cand_f0071e2fc864b9a1" } }, { "id": "cand_6f168f85621b5289", "tier": "discovered", "type": "api_endpoint", "name": "Saylor Innovations Papers", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/2", "tree_version": "tree/2", "placed_at": "2026-10-17T09:40:28.000Z" }, "host": "saylorinnovations.com", "provider": "saylorinnovations.com", "url": "https://saylorinnovations.com/api/papers/paper", "method": "GET", "templated_url": false, "operator": null, "tags": [ "papers", "academic", "research", "science", "paper" ], "category": null, "price_usd": 0.01, "price_source": "registry", "provider_endpoints": 800, "networks": [ "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp" ], "networks_source": "registry", "payment_protocols": [], "mainnet": null, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T03:20:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 0, "passed_30d": 0, "missed_30d": 0, "pass_rate": null, "freshness": "no_data", "last_check": null }, "registry_usage": { "calls_30d": 5, "unique_payers_30d": 3, "note": "Reported by the registry; not our measurement." }, "payment_terms": null, "registry_listing": { "last_seen_at": "2026-10-17T04:10:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_6f168f85621b5289", "api": "https://agentservicedirectory.com/api/v1/services/cand_6f168f85621b5289" } }, { "id": "cand_5bc8a988161721e6", "tier": "discovered", "type": "api_endpoint", "name": "Search arXiv papers | Vextorium", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/2", "tree_version": "tree/2", "placed_at": "2026-10-17T09:30:28.000Z" }, "host": "api.vextorium.com", "provider": "vextorium.com", "url": "https://api.vextorium.com/arxiv-buscar-pago", "method": "POST", "templated_url": false, "operator": null, "tags": [ "arxiv", "research", "papers", "science", "ai" ], "category": null, "price_usd": 0.003, "price_source": "registry", "provider_endpoints": 1047, "networks": [ "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp", "eip155:8453", "eip155:137", "eip155:10", "eip155:5042", "xrpl:0" ], "networks_source": "registry", "payment_protocols": [], "mainnet": null, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T04:45:25.000Z", "monitoring_days": 0.2, "limited_evidence": true, "checks_30d": 0, "passed_30d": 0, "missed_30d": 0, "pass_rate": null, "freshness": "no_data", "last_check": null }, "registry_usage": { "calls_30d": 3, "unique_payers_30d": 3, "note": "Reported by the registry; not our measurement." }, "payment_terms": null, "registry_listing": { "last_seen_at": "2026-10-17T04:45:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_5bc8a988161721e6", "api": "https://agentservicedirectory.com/api/v1/services/cand_5bc8a988161721e6" } }, { "id": "cand_867ee72e19649d88", "tier": "discovered", "type": "api_endpoint", "name": "Search arXiv papers | Vextorium", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/3", "tree_version": "tree/2", "placed_at": "2026-10-17T09:55:28.000Z" }, "host": "api.vextorium.com", "provider": "vextorium.com", "url": "https://api.vextorium.com/v1/arxiv-search", "method": "POST", "templated_url": false, "operator": null, "tags": [ "arxiv", "research", "papers", "science", "ai" ], "category": null, "price_usd": 0.003, "price_source": "registry", "provider_endpoints": 1047, "networks": [ "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp", "eip155:8453", "eip155:137", "eip155:10", "eip155:5042", "xrpl:0" ], "networks_source": "registry", "payment_protocols": [], "mainnet": null, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T04:45:25.000Z", "monitoring_days": 0.2, "limited_evidence": true, "checks_30d": 0, "passed_30d": 0, "missed_30d": 0, "pass_rate": null, "freshness": "no_data", "last_check": null }, "registry_usage": { "calls_30d": 3, "unique_payers_30d": 3, "note": "Reported by the registry; not our measurement." }, "payment_terms": null, "registry_listing": { "last_seen_at": "2026-10-17T04:45:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_867ee72e19649d88", "api": "https://agentservicedirectory.com/api/v1/services/cand_867ee72e19649d88" } }, { "id": "cand_eace04ec071b309c", "tier": "discovered", "type": "api_endpoint", "name": "Search: wiki, travel, papers, HN", "name_source": "registry", "branches": null, "host": "apexfaucet.xyz", "provider": "apexfaucet.xyz", "url": "https://apexfaucet.xyz/api/x402/research-search", "method": "GET", "templated_url": false, "operator": null, "tags": [ "search", "research", "travel", "papers", "wikipedia" ], "category": null, "price_usd": 0.003, "price_source": "registry", "provider_endpoints": 119, "networks": [ "eip155:8453", "eip155:5042", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp", "eip155:56" ], "networks_source": "registry", "payment_protocols": [], "mainnet": null, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T08:35:28.000Z", "monitoring_days": 0.1, "limited_evidence": true, "checks_30d": 0, "passed_30d": 0, "missed_30d": 0, "pass_rate": null, "freshness": "no_data", "last_check": null }, "registry_usage": { "calls_30d": 3, "unique_payers_30d": 3, "note": "Reported by the registry; not our measurement." }, "payment_terms": null, "registry_listing": { "last_seen_at": "2026-10-17T08:35:28.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_eace04ec071b309c", "api": "https://agentservicedirectory.com/api/v1/services/cand_eace04ec071b309c" } }, { "id": "cand_4b7fd467e9b55781", "tier": "discovered", "type": "api_endpoint", "name": "Vextorium", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/2", "tree_version": "tree/2", "placed_at": "2026-10-17T09:20:28.000Z" }, "host": "api.vextorium.com", "provider": "vextorium.com", "url": "https://api.vextorium.com/v1/scholarly-search", "method": "POST", "templated_url": false, "operator": null, "tags": [ "research", "papers", "citations", "openalex", "academic" ], "category": null, "price_usd": 0.003, "price_source": "registry", "provider_endpoints": 1047, "networks": [ "eip155:8453", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp", "eip155:137", "eip155:10", "eip155:5042" ], "networks_source": "registry", "payment_protocols": [], "mainnet": null, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T04:55:25.000Z", "monitoring_days": 0.2, "limited_evidence": true, "checks_30d": 0, "passed_30d": 0, "missed_30d": 0, "pass_rate": null, "freshness": "no_data", "last_check": null }, "registry_usage": { "calls_30d": 3, "unique_payers_30d": 3, "note": "Reported by the registry; not our measurement." }, "payment_terms": null, "registry_listing": { "last_seen_at": "2026-10-17T04:55:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_4b7fd467e9b55781", "api": "https://agentservicedirectory.com/api/v1/services/cand_4b7fd467e9b55781" } }, { "id": "cand_7cbadc47a8f2bdb3", "tier": "discovered", "type": "api_endpoint", "name": "Vextorium", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/3", "tree_version": "tree/2", "placed_at": "2026-10-17T09:50:28.000Z" }, "host": "api.vextorium.com", "provider": "vextorium.com", "url": "https://api.vextorium.com/v1/pubmed-search", "method": "POST", "templated_url": false, "operator": null, "tags": [ "pubmed", "medicine", "research", "papers", "health" ], "category": null, "price_usd": 0.003, "price_source": "registry", "provider_endpoints": 1047, "networks": [ "eip155:8453", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp", "eip155:137", "eip155:10", "eip155:5042" ], "networks_source": "registry", "payment_protocols": [], "mainnet": null, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T04:55:25.000Z", "monitoring_days": 0.2, "limited_evidence": true, "checks_30d": 0, "passed_30d": 0, "missed_30d": 0, "pass_rate": null, "freshness": "no_data", "last_check": null }, "registry_usage": { "calls_30d": 3, "unique_payers_30d": 3, "note": "Reported by the registry; not our measurement." }, "payment_terms": null, "registry_listing": { "last_seen_at": "2026-10-17T04:55:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_7cbadc47a8f2bdb3", "api": "https://agentservicedirectory.com/api/v1/services/cand_7cbadc47a8f2bdb3" } }, { "id": "cand_dff7655b79f1fa01", "tier": "discovered", "type": "api_endpoint", "name": "Vextorium", "name_source": "registry", "branches": null, "host": "api.vextorium.com", "provider": "vextorium.com", "url": "https://api.vextorium.com/pubmed-buscar-pago", "method": "POST", "templated_url": false, "operator": null, "tags": [ "pubmed", "medicine", "research", "papers", "health" ], "category": null, "price_usd": 0.003, "price_source": "registry", "provider_endpoints": 1047, "networks": [ "eip155:8453", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp", "eip155:137", "eip155:10", "eip155:5042" ], "networks_source": "registry", "payment_protocols": [], "mainnet": null, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T04:50:25.000Z", "monitoring_days": 0.2, "limited_evidence": true, "checks_30d": 0, "passed_30d": 0, "missed_30d": 0, "pass_rate": null, "freshness": "no_data", "last_check": null }, "registry_usage": { "calls_30d": 3, "unique_payers_30d": 3, "note": "Reported by the registry; not our measurement." }, "payment_terms": null, "registry_listing": { "last_seen_at": "2026-10-17T04:50:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_dff7655b79f1fa01", "api": "https://agentservicedirectory.com/api/v1/services/cand_dff7655b79f1fa01" } }, { "id": "cand_f266be99e2ae79d9", "tier": "discovered", "type": "api_endpoint", "name": "AgentRXI", "name_source": "registry", "branches": null, "host": "agentrxi.com", "provider": "agentrxi.com", "url": "https://agentrxi.com/v1/papers", "method": "GET", "templated_url": false, "operator": null, "tags": [ "research", "papers", "academic", "science", "citations" ], "category": null, "price_usd": 0.006, "price_source": "registry", "provider_endpoints": 230, "networks": [ "eip155:8453", "eip155:137", "eip155:42161", "eip155:480" ], "networks_source": "registry", "payment_protocols": [], "mainnet": null, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T04:35:25.000Z", "monitoring_days": 0.2, "limited_evidence": true, "checks_30d": 0, "passed_30d": 0, "missed_30d": 0, "pass_rate": null, "freshness": "no_data", "last_check": null }, "registry_usage": { "calls_30d": 2, "unique_payers_30d": 2, "note": "Reported by the registry; not our measurement." }, "payment_terms": null, "registry_listing": { "last_seen_at": "2026-10-17T08:05:28.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_f266be99e2ae79d9", "api": "https://agentservicedirectory.com/api/v1/services/cand_f266be99e2ae79d9" } }, { "id": "cand_50a025c68a577e10", "tier": "discovered", "type": "api_endpoint", "name": "Saylor Innovations Papers", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/2", "tree_version": "tree/2", "placed_at": "2026-10-17T09:25:28.000Z" }, "host": "saylorinnovations.com", "provider": "saylorinnovations.com", "url": "https://saylorinnovations.com/api/papers/pubmed", "method": "GET", "templated_url": false, "operator": null, "tags": [ "papers", "academic", "research", "science", "pubmed" ], "category": null, "price_usd": 0.01, "price_source": "registry", "provider_endpoints": 800, "networks": [ "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp" ], "networks_source": "registry", "payment_protocols": [], "mainnet": null, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T03:20:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 0, "passed_30d": 0, "missed_30d": 0, "pass_rate": null, "freshness": "no_data", "last_check": null }, "registry_usage": { "calls_30d": 4, "unique_payers_30d": 2, "note": "Reported by the registry; not our measurement." }, "payment_terms": null, "registry_listing": { "last_seen_at": "2026-10-17T05:15:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_50a025c68a577e10", "api": "https://agentservicedirectory.com/api/v1/services/cand_50a025c68a577e10" } }, { "id": "cand_a0b1af6d45aa34e9", "tier": "discovered", "type": "api_endpoint", "name": "Saylor Innovations Papers", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/3", "tree_version": "tree/2", "placed_at": "2026-10-17T10:15:28.000Z" }, "host": "saylorinnovations.com", "provider": "saylorinnovations.com", "url": "https://saylorinnovations.com/api/papers/search", "method": "GET", "templated_url": false, "operator": null, "tags": [ "papers", "academic", "research", "science", "search" ], "category": null, "price_usd": 0.01, "price_source": "registry", "provider_endpoints": 800, "networks": [ "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp" ], "networks_source": "registry", "payment_protocols": [], "mainnet": null, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T03:15:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 0, "passed_30d": 0, "missed_30d": 0, "pass_rate": null, "freshness": "no_data", "last_check": null }, "registry_usage": { "calls_30d": 4, "unique_payers_30d": 2, "note": "Reported by the registry; not our measurement." }, "payment_terms": null, "registry_listing": { "last_seen_at": "2026-10-17T05:15:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_a0b1af6d45aa34e9", "api": "https://agentservicedirectory.com/api/v1/services/cand_a0b1af6d45aa34e9" } }, { "id": "cand_a44616cda5c07b37", "tier": "discovered", "type": "api_endpoint", "name": "Saylor Innovations Papers", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/3", "tree_version": "tree/2", "placed_at": "2026-10-17T10:15:28.000Z" }, "host": "saylorinnovations.com", "provider": "saylorinnovations.com", "url": "https://saylorinnovations.com/api/papers/arxiv", "method": "GET", "templated_url": false, "operator": null, "tags": [ "papers", "academic", "research", "science", "arxiv" ], "category": null, "price_usd": 0.01, "price_source": "registry", "provider_endpoints": 800, "networks": [ "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp" ], "networks_source": "registry", "payment_protocols": [], "mainnet": null, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T03:15:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 0, "passed_30d": 0, "missed_30d": 0, "pass_rate": null, "freshness": "no_data", "last_check": null }, "registry_usage": { "calls_30d": 4, "unique_payers_30d": 2, "note": "Reported by the registry; not our measurement." }, "payment_terms": null, "registry_listing": { "last_seen_at": "2026-10-17T05:15:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_a44616cda5c07b37", "api": "https://agentservicedirectory.com/api/v1/services/cand_a44616cda5c07b37" } }, { "id": "cand_b019b3ecbd634a50", "tier": "discovered", "type": "api_endpoint", "name": "SiteCheck", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/3", "tree_version": "tree/2", "placed_at": "2026-10-17T10:25:28.000Z" }, "host": "api.sitecheck-api.workers.dev", "provider": "sitecheck-api.workers.dev", "url": "https://api.sitecheck-api.workers.dev/api/doi", "method": "GET", "templated_url": false, "operator": null, "tags": [ "doi", "crossref", "citations", "papers", "bibliography" ], "category": null, "price_usd": 0.001, "price_source": "registry", "provider_endpoints": 223, "networks": [ "eip155:8453", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp", "eip155:5042" ], "networks_source": "registry", "payment_protocols": [], "mainnet": null, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T04:25:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 0, "passed_30d": 0, "missed_30d": 0, "pass_rate": null, "freshness": "no_data", "last_check": null }, "registry_usage": { "calls_30d": 2, "unique_payers_30d": 2, "note": "Reported by the registry; not our measurement." }, "payment_terms": null, "registry_listing": { "last_seen_at": "2026-10-17T07:55:28.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_b019b3ecbd634a50", "api": "https://agentservicedirectory.com/api/v1/services/cand_b019b3ecbd634a50" } }, { "id": "cand_3963c06f97b7a005", "tier": "discovered", "type": "api_endpoint", "name": "Vextorium", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/2", "tree_version": "tree/2", "placed_at": "2026-10-17T09:10:28.000Z" }, "host": "api.vextorium.com", "provider": "vextorium.com", "url": "https://api.vextorium.com/investigacion-buscar-pago", "method": "POST", "templated_url": false, "operator": null, "tags": [ "research", "papers", "citations", "openalex", "academic" ], "category": null, "price_usd": 0.003, "price_source": "registry", "provider_endpoints": 1047, "networks": [ "eip155:8453", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp", "eip155:137", "eip155:10", "eip155:5042" ], "networks_source": "registry", "payment_protocols": [], "mainnet": null, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T05:55:25.000Z", "monitoring_days": 0.2, "limited_evidence": true, "checks_30d": 0, "passed_30d": 0, "missed_30d": 0, "pass_rate": null, "freshness": "no_data", "last_check": null }, "registry_usage": { "calls_30d": 2, "unique_payers_30d": 2, "note": "Reported by the registry; not our measurement." }, "payment_terms": null, "registry_listing": { "last_seen_at": "2026-10-17T05:55:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_3963c06f97b7a005", "api": "https://agentservicedirectory.com/api/v1/services/cand_3963c06f97b7a005" } }, { "id": "cand_24d2aee3d2501a6d", "tier": "discovered", "type": "api_endpoint", "name": "academic-paper-search", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/1", "tree_version": "tree/1", "placed_at": "2026-10-17T08:55:28.000Z" }, "host": "intel.rallylive.ca", "provider": "rallylive.ca", "url": "https://intel.rallylive.ca/papers/search", "method": "GET", "templated_url": false, "operator": null, "tags": [ "papers", "research", "academic", "science", "arxiv" ], "category": null, "price_usd": 0.02, "price_source": "registry", "provider_endpoints": 9922, "networks": [ "eip155:8453", "eip155:84532" ], "networks_source": "registry", "payment_protocols": [], "mainnet": null, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T07:30:25.000Z", "monitoring_days": 0.1, "limited_evidence": true, "checks_30d": 0, "passed_30d": 0, "missed_30d": 0, "pass_rate": null, "freshness": "no_data", "last_check": null }, "registry_usage": { "calls_30d": 1, "unique_payers_30d": 1, "note": "Reported by the registry; not our measurement." }, "payment_terms": null, "registry_listing": { "last_seen_at": "2026-10-17T08:35:28.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_24d2aee3d2501a6d", "api": "https://agentservicedirectory.com/api/v1/services/cand_24d2aee3d2501a6d" } }, { "id": "cand_9a496831be94cbd5", "tier": "discovered", "type": "api_endpoint", "name": "arxiv-latest-preprints", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/3", "tree_version": "tree/2", "placed_at": "2026-10-17T10:05:28.000Z" }, "host": "intel.rallylive.ca", "provider": "rallylive.ca", "url": "https://intel.rallylive.ca/papers/arxiv-latest", "method": "GET", "templated_url": false, "operator": null, "tags": [ "arxiv", "preprints", "papers", "ai-research", "latest" ], "category": null, "price_usd": 0.02, "price_source": "registry", "provider_endpoints": 9922, "networks": [ "eip155:8453", "eip155:84532" ], "networks_source": "registry", "payment_protocols": [], "mainnet": null, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T07:30:25.000Z", "monitoring_days": 0.1, "limited_evidence": true, "checks_30d": 0, "passed_30d": 0, "missed_30d": 0, "pass_rate": null, "freshness": "no_data", "last_check": null }, "registry_usage": { "calls_30d": 1, "unique_payers_30d": 1, "note": "Reported by the registry; not our measurement." }, "payment_terms": null, "registry_listing": { "last_seen_at": "2026-10-17T08:35:28.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_9a496831be94cbd5", "api": "https://agentservicedirectory.com/api/v1/services/cand_9a496831be94cbd5" } }, { "id": "cand_95c94e9d4fd3ebcd", "tier": "discovered", "type": "api_endpoint", "name": "doi-lookup", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/3", "tree_version": "tree/2", "placed_at": "2026-10-17T10:05:28.000Z" }, "host": "intel.rallylive.ca", "provider": "rallylive.ca", "url": "https://intel.rallylive.ca/papers/doi", "method": "GET", "templated_url": false, "operator": null, "tags": [ "doi", "citation", "papers", "metadata", "reference" ], "category": null, "price_usd": 0.01, "price_source": "registry", "provider_endpoints": 9922, "networks": [ "eip155:8453" ], "networks_source": "registry", "payment_protocols": [], "mainnet": null, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T02:35:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 0, "passed_30d": 0, "missed_30d": 0, "pass_rate": null, "freshness": "no_data", "last_check": null }, "registry_usage": { "calls_30d": 2, "unique_payers_30d": 1, "note": "Reported by the registry; not our measurement." }, "payment_terms": null, "registry_listing": { "last_seen_at": "2026-10-17T06:55:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_95c94e9d4fd3ebcd", "api": "https://agentservicedirectory.com/api/v1/services/cand_95c94e9d4fd3ebcd" } }, { "id": "cand_b3af29e0f52348c4", "tier": "discovered", "type": "api_endpoint", "name": "most-cited-papers", "name_source": "registry", "branches": { "primary": "search/academic", "secondary": [], "method_version": "placement-rules/3", "tree_version": "tree/2", "placed_at": "2026-10-17T10:25:28.000Z" }, "host": "intel.rallylive.ca", "provider": "rallylive.ca", "url": "https://intel.rallylive.ca/papers/most-cited", "method": "GET", "templated_url": false, "operator": null, "tags": [ "papers", "citations", "research", "literature-review", "academic" ], "category": null, "price_usd": 0.02, "price_source": "registry", "provider_endpoints": 9922, "networks": [ "eip155:8453", "eip155:84532" ], "networks_source": "registry", "payment_protocols": [], "mainnet": null, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T06:55:25.000Z", "monitoring_days": 0.2, "limited_evidence": true, "checks_30d": 0, "passed_30d": 0, "missed_30d": 0, "pass_rate": null, "freshness": "no_data", "last_check": null }, "registry_usage": { "calls_30d": 2, "unique_payers_30d": 1, "note": "Reported by the registry; not our measurement." }, "payment_terms": null, "registry_listing": { "last_seen_at": "2026-10-17T08:35:28.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_b3af29e0f52348c4", "api": "https://agentservicedirectory.com/api/v1/services/cand_b3af29e0f52348c4" } }, { "id": "cand_d04b8eba1c020068", "tier": "discovered", "type": "api_endpoint", "name": "Lumen Works", "name_source": "registry", "branches": null, "host": "lumenworks-x402-decoder.onrender.com", "provider": "lumenworks-x402-decoder.onrender.com", "url": "https://lumenworks-x402-decoder.onrender.com/v1/pubmed/search", "method": "POST", "templated_url": false, "operator": null, "tags": [ "pubmed", "biomedical", "research", "papers", "science" ], "category": null, "price_usd": 0.001, "price_source": "registry", "provider_endpoints": 5, "networks": [ "eip155:8453" ], "networks_source": "registry", "payment_protocols": [], "mainnet": null, "evidence": { "operations": 1, "check_interval_hours": 24, "check_interval": "daily", "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.", "schedule_tier": "daily", "monitoring_since": "2026-10-17T03:45:25.000Z", "monitoring_days": 0.3, "limited_evidence": true, "checks_30d": 1, "passed_30d": 0, "missed_30d": 0, "pass_rate": 0, "freshness": "fresh", "last_check": { "at": "2026-10-17T04:05:51.279Z", "result": "client_error", "passed": false, "http_status": 404, "duration_ms": 139 } }, "registry_usage": null, "payment_terms": null, "registry_listing": { "last_seen_at": "2026-10-17T03:45:25.000Z", "listed": true }, "links": { "page": "https://agentservicedirectory.com/services/cand_d04b8eba1c020068", "api": "https://agentservicedirectory.com/api/v1/services/cand_d04b8eba1c020068" } } ] }