{"x402Version":2,"name":"API Change Feed","description":"Breaking changes, deprecations and security fixes for 38 popular APIs and SDKs (LLM SDKs, Stripe, Next.js, React, Node, Python frameworks, cloud SDKs). Built for AI coding agents whose training data is out of date. Paid per call with x402 (USDC on Base); no account or API key.","url":"https://changefeed.anthonyzilar.workers.dev","network":"base","facilitator":"coinbase","payTo":"0xb2BFA671B14fEaFf42bA098B3a09B296D8efB303","openapi":"https://changefeed.anthonyzilar.workers.dev/openapi.json","llms":"https://changefeed.anthonyzilar.workers.dev/llms.txt","mcp":"https://changefeed.anthonyzilar.workers.dev/mcp","services":[{"method":"GET","path":"/v1/upgrade-check","description":"Breaking changes, deprecations, security fixes and major versions crossed between the version your code targets and the latest release of a package.","amount":"0.01","currency":"USDC","extensions":{"bazaar":{"discoverable":true}}},{"method":"GET","path":"/v1/changes","description":"Normalized change records (breaking, deprecation, security, release) for one tracked API/SDK or all of them, filterable by date and kind.","amount":"0.005","currency":"USDC","extensions":{"bazaar":{"discoverable":true}}},{"method":"GET","path":"/v1/digest","description":"Cross-ecosystem digest of breaking changes, deprecations and security fixes since a date, grouped by source.","amount":"0.02","currency":"USDC","extensions":{"bazaar":{"discoverable":true}}}]}