{"id":75049,"recorded_at":"2026-10-26T14:38:09.989523Z","observed_at":"2026-10-26T14:38:09.989472Z","subject_kind":"source_record","subject":"x402_bazaar:https://factstamp.agentrails.workers.dev/package","kind":"listing","method":"baseline/1","body":{"endpoints":[["x402","https://factstamp.agentrails.workers.dev/package"]],"name":"factstamp.agentrails.workers.dev/package","owner_address":"0xc3bcd24a2b350cc73b8516b2a0539a323b42cc32","raw":{"accepts":[{"amount":"20000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","description":"Check a dependency before installing it. Give a package and, optionally, a version with its ecosystem (npm, PyPI, crates.io); the answer says whether that exact version exists, whether it is yanked or deprecated, and every advisory OSV lists against it. A version that was never published returns not_found with the real versions nearest to it. Verdicts: verified, advisory, yanked, not_found, unknown.","extra":{"name":"USD Coin","version":"2"},"maxAmountRequired":"20000","maxTimeoutSeconds":300,"mimeType":"application/json","network":"eip155:8453","payTo":"0xc3bcd24a2b350cc73b8516b2a0539a323b42cc32","resource":"https://factstamp.agentrails.workers.dev/package","scheme":"exact"}],"description":"Check a dependency before installing it. Give a package and, optionally, a version with its ecosystem (npm, PyPI, crates.io); the answer says whether that exact version exists, whether it is yanked or deprecated, and every advisory OSV lists against it. A version that was never published returns not_found with the real versions nearest to it. Verdicts: verified, advisory, yanked, not_found, unknown.","extensions":{"bazaar":{"info":{"input":{"body":{"ecosystem":"npm","package":"express@4.18.2"},"bodyType":"application/json","method":"POST","type":"http"},"output":{"example":{"advisories":[{"id":"GHSA-qw6h-vgh9-j6wx"},{"id":"GHSA-rv95-896h-c2vc"}],"deprecated":null,"detail":"2 advisory record(s) published against express@4.18.2.","ecosystem":"npm","latest":"5.2.1","name":"express","published_at":"2022-10-08T20:14:32.495Z","query":"express@4.18.2","sources":[{"http_status":200,"name":"npm registry"},{"http_status":200,"name":"OSV"}],"verdict":"advisory","version":"4.18.2","yanked":false},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","additionalProperties":false,"properties":{"input":{"additionalProperties":true,"properties":{"body":{"type":"object"},"bodyType":{"const":"application/json"},"method":{"const":"POST"},"type":{"const":"http"}},"required":["type","method"],"type":"object"},"output":{"additionalProperties":true,"properties":{"example":{"type":"object"},"type":{"const":"json"}},"required":["type","example"],"type":"object"}},"required":["input","output"],"type":"object"}}},"lastUpdated":"2026-10-05T20:17:14.192Z","quality":{"l30DaysTotalCalls":1,"l30DaysUniquePayers":1,"lastCalledAt":"2026-10-05T20:17:13.719Z"},"resource":"https://factstamp.agentrails.workers.dev/package","type":"http","x402Version":2},"source":"x402_bazaar","summary":"Check a dependency before installing it. Give a package and, optionally, a version with its ecosystem (npm, PyPI, crates.io); the answer says whether that exact version exists, whether it is yanked or deprecated, and every advisory OSV lists against it. A version that was never published returns not_found with the real versions nearest to it. Verdicts: verified, advisory, yanked, not_found, unknown."},"body_sha256":"0a108af03a76b5145e11769d3c5eb9e80564549621593564b441993798a6821f","prev_id":null,"leaf":"0xa9bffe17531a2a607e683cdbcff292f80bff293d7f62bf7f4bf3cb621cdf02cb","leaf_text":"{\"body\":\"0a108af03a76b5145e11769d3c5eb9e80564549621593564b441993798a6821f\",\"id\":75049,\"kind\":\"listing\",\"method\":\"baseline/1\",\"observed_us\":1793025489989472,\"prev\":null,\"subject\":\"x402_bazaar:https://factstamp.agentrails.workers.dev/package\",\"subject_kind\":\"source_record\"}","day":{"day":"2026-10-26","leaves":296695,"root":"0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8","chained":"0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a","anchor_chain":"eip155:5042002","anchor_tx":"0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae","anchor_block":69251483},"proof":["0xa9c012107abcdc116b93fe939068694bc0e8492125aeff863d28935277ee039c","0x8b0a5ed33766f5c4f4a7fadc966310ca5bf0e77ab10c2b6800524436a132a43d","0xd209742110f16c15f20ec12f7b3ca9c0209a6d2a8c9e5d198504dc162b29647f","0x5cda8113ade82f3fe9b3ab7fe1d19cb7b86e7206d4bb7a60542f253fc2032fca","0x1088ffce6fde7645bfa0882eaab42e77c0f19b6f11d1d648a8e26e1df5ff9135","0xfa999c9108045f462f7c6b1ccf8339e63f5b94f7d2c4c41dcc5b1488a80106e9","0x5e0dc3c45de15fbd37d0ab05eb3a7fca1ee1a4ddd06147a0c77b4a8b49bbb233","0x3f7ae58b206c51fc427f754b9bf85a76e953c0216bd09128c03a01e3643b9713","0x82d9ae554aa7cec8f51a37c603e34e767e325b0595e6cdd1f431b89b2f287159","0xdafe89e6fd113360e44ef4b5cf78f02090d7d8c58f90801b9c55d378ade0c6ae","0x55ba80743bf45624f0b04651dfd0a37e2a85f91f45e334ff14efbb74a49dd361","0x09a19b8d31a6e948e5051cb72b98b1d2b2bfe053f62d6d24d61c22b3ed1c3f24","0x4700d6dfdb40e52e2ceb8ffe62c75f3f708d23452f828255fd003d795f5d9d66","0x3b4dba7d874fc323b0a364140a9c60f37bf547fe671897653118a9873fe03420","0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570","0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452","0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40","0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f","0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a"]}