{"slug":"agent-tools-b3fed2a5","name":"Agent Tools","summary":"Free tier: 25 calls/day per IP with header X-Free-Call: 1 (or ?free=1), then pay per call. Scholarly paper search for research agents: keywords or a DOI in, matching papers out with title, authors, year, venue, DOI, citation count, open access PDF or page link, retraction flag and abstract. Filter by year range and open access, sort by relevance, citations or newest. Source OpenAlex, Crossref fallback.","status":"live","indexable":true,"listed_since":"2026-10-29T18:27:30.449265Z","sources":[{"source":"x402_bazaar","external_id":"https://agents.crowdspark.me/v1/research/papers","owner_address":"0x0dea0030a17bf886543a757c55924710258c2eec","seen_at":"2026-11-02T19:15:25.499914Z","removed_at":null}],"endpoints":[{"url":"https://agents.crowdspark.me/v1/research/papers","host":"agents.crowdspark.me","protocol":"x402","state":"live","last_probe_at":"2026-11-02T14:43:34.166813Z","last_ok_at":"2026-11-02T14:43:34.166813Z","tools_count":null,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[{"slug":"agents-crowdspark-me-672b6796","name":"agents.crowdspark.me"}],"payment_options":[{"endpoint_url":"https://agents.crowdspark.me/v1/research/papers","network":"eip155:8453","scheme":"exact","rail":"exact","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","coin":"USDC","asset_label":"USD Coin","amount":"6000","pay_to":"0x0dea0030a17bf886543a757c55924710258c2eec","observed_at":"2026-11-02T14:43:34.166813Z"}],"usage":{"source":"x402_bazaar","unique_payers_30d":1,"paid_calls_30d":2,"last_paid_at":"2026-10-30T00:21:13.706Z","reported_at":"2026-11-02T19:15:25.499914Z"},"assessment":{"method":"2026.10.2","checks":[{"id":"answers","state":"pass","reason":"Answered a check 3 hours ago."},{"id":"owner","state":"fail","reason":"No one has proven control of its domain or of the wallet it is paid at."},{"id":"track_record","state":"fail","reason":"Listed for 3 days; 30 are needed."},{"id":"real_customers","state":"fail","reason":"1 different wallets paid it in 30 days, as the x402 Bazaar reports (not yet counted by addrbook); 10 are needed."},{"id":"clean_scan","state":"not_applicable","reason":"Not an MCP server."}],"passed":1,"applicable":4,"contradicted":false,"computed_at":"2026-11-02T00:28:00.958878Z"},"identity":{"endpoint_domains":["crowdspark.me"],"proven_domains":[],"proven_wallets":[],"namesakes":[{"slug":"agent-tools-8eb25db7","name":"Agent Tools","proven_domain":"agent-tools.jbarkules.workers.dev"},{"slug":"agent-tools-13c0f21c","name":"Agent Tools","proven_domain":"agents.crowdspark.me"},{"slug":"agent-tools-bd779890","name":"Agent Tools","proven_domain":null},{"slug":"agent-tools-8ba9bd34","name":"Agent Tools","proven_domain":null},{"slug":"agent-tools-cd6e32e0","name":"Agent Tools","proven_domain":null},{"slug":"agent-tools-48aedccb","name":"Agent Tools","proven_domain":null},{"slug":"agent-tools-0c16be14","name":"Agent Tools","proven_domain":null},{"slug":"agent-tools-8c8b75d0","name":"Agent Tools","proven_domain":null},{"slug":"agent-tools-d28e073b","name":"Agent Tools","proven_domain":null},{"slug":"agent-tools-252ba4d1","name":"Agent Tools","proven_domain":null}],"namesake_count":77,"identity_checks":[],"wallet_attestations":[],"human_backings":[]},"replies":[],"customers":null,"scan":null,"notice":"Not affiliated with addrbook — claim or request removal."}