{"uid":"cap_BJatTV-sm9PP9fN5cwS_F","slug":"changelog-state-api-structured-recent-releases-for-vendor-f33e3cc1","name":"Changelog State API – Structured Recent Releases for Vendor","description":"Structured recent releases for one tracked vendor.","url":"https://changelog-state-api.replit.app/api/monitors/mcp","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"pathParams":{"type":"object","required":["slug"],"properties":{"slug":{"type":"string","example":"openai","pattern":"^[a-z0-9][a-z0-9-]*$","maxLength":64,"minLength":1,"description":"Vendor slug, lowercase alphanumeric with dashes. Take one from GET /api/monitors and substitute it into the path: `{slug}` is a placeholder, and requesting those literal characters returns 404. Worked example: GET /api/monitors/openai."}}},"queryParams":{"type":"object","properties":{"limit":{"type":"integer","default":5,"maximum":50,"minimum":1,"description":"Maximum number of release entries to return on this page. The page size, not a total: use `cursor` to walk past it."},"cursor":{"type":"string","default":"","maxLength":512,"description":"Opaque next-page token, copied verbatim from `nextCursor` on the previous response for this same vendor. Omit it — or send the empty string — to start at the newest entry. It names a position in the newest-first order rather than an offset, so a page you have already read never shifts under you: an entry that arrives mid-walk takes the place its own publish date gives it — above the cursor, on ground you have already covered, or below it, still ahead of you — instead of renumbering every page behind it. It does not expire; a walk can be paused and resumed. Do not construct or edit one: a token that is malformed, or was issued for a different vendor, is refused with 400 and is never charged."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"enum":["json"],"type":"string"},"example":{"type":"object"}},"description":"Full structured recent releases (paid)"}},"description":"Call shape for GET /api/monitors/{slug}."},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_qYVQmV9t7PzBzaeLbjtPl","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns paginated, structured recent release entries for a single tracked vendor identified by slug (e.g. 'mcp').","exampleAgentPrompt":"Pull the 10 most recent structured release entries for the 'mcp' vendor from the Changelog State API so I can see what versions have shipped lately.","exampleUseCases":[{"title":"Track MCP release cadence","prompt":"Fetch the latest 10 structured releases for the 'mcp' vendor so I can see how frequently they've been shipping updates."},{"title":"Paginate through vendor release history","prompt":"Get the next page of releases for the 'openai' vendor using the cursor token I got from the last response — I want to keep walking back through their history."},{"title":"Monitor dependency changelog for a bot","prompt":"Grab up to 25 recent release entries for the 'anthropic' vendor so my bot can detect whether any new versions have dropped since it last checked."}],"resultDescription":"A JSON object containing an array of structured release entries for the requested vendor (up to `limit` items, default 10), each with version and publish metadata, plus an opaque `nextCursor` string that can be passed on subsequent calls to retrieve the next page of older entries in newest-first order.","failureModes":["404 if the slug does not match a tracked vendor (use GET /api/monitors to list valid slugs)","400 if the cursor token is malformed or was issued for a different vendor","400 if limit is outside the allowed range (1–50)","Payment failure if USDC balance is insufficient for the $0.01 per-call fee","Empty results array if the vendor exists but has no recorded releases yet"],"whenToPreferThis":"Use this endpoint when you need structured, paginated release data for a specific vendor you already know is tracked (slug confirmed via GET /api/monitors). It is the right choice when you want machine-readable release entries rather than raw changelog diffs, and when you need stable cursor-based pagination that won't shift previously read pages as new releases arrive.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T12:44:19.498Z","isFirstParty":false}