{"uid":"cap_pueEzxVtZQ8BTr9-iqmpp","slug":"changelog-state-api-vercel-change-history-b5a0513e","name":"Changelog State API – Vercel Change History","description":"Detected changelog update history for one tracked vendor.","url":"https://changelog-state-api.replit.app/api/monitors/vercel/changes","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"pathParams":{"type":"object","required":["slug"],"properties":{"slug":{"type":"string","pattern":"^[a-z0-9][a-z0-9-]*$","maxLength":64,"minLength":1,"description":"Vendor slug, lowercase alphanumeric with dashes."}}},"queryParams":{"type":"object","properties":{"type":{"enum":["new_release","version_changed","date_changed","title_changed","breaking_signal"],"type":"string","description":"Restrict to a single change type."},"limit":{"type":"integer","default":50,"maximum":200,"minimum":1,"description":"Maximum number of change rows to return."},"since":{"type":"string","format":"date-time","description":"Only return changes detected at or after this instant."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"enum":["json"],"type":"string"},"example":{"type":"object"}},"description":"Detected changelog update history (paid)"}},"description":"Call shape for GET /api/monitors/{slug}/changes."},"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_03NWE_o-bzzSxlnG001j-","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 detected changelog update history (new releases, version changes, breaking signals, etc.) for the Vercel vendor, filterable by change type and date.","exampleAgentPrompt":"Can you pull the detected changelog update history for Vercel — show me up to 100 entries and only include breaking_signal changes since 2024-01-01T00:00:00Z?","exampleUseCases":[{"title":"Breaking change alert for Vercel","prompt":"Check the Vercel changelog for any breaking_signal changes detected since the start of this month and let me know what came up — give me up to 50 results."},{"title":"Track new Vercel releases over time","prompt":"Fetch the full new_release changelog history for Vercel going back to 2023-06-01T00:00:00Z, up to 200 entries, so I can see how often they've been shipping releases."},{"title":"Audit recent Vercel version changes","prompt":"Show me all version_changed entries detected in the Vercel changelog over the last two weeks — I want to see what version bumps have happened."}],"resultDescription":"A JSON array of detected changelog change records for Vercel, each containing a change type (e.g. new_release, version_changed, breaking_signal), detection timestamp, and relevant metadata. Results are filterable by change type and date range, with a configurable limit up to 200 rows.","failureModes":["Invalid or unknown vendor slug returns 404 or empty result set","Invalid change type enum value returns 400 validation error","Malformed since date-time format causes 400 parse error","Limit out of range (below 1 or above 200) triggers schema validation error","Payment not provided or insufficient USDC balance returns 402","Service unavailability on Replit hosting returns 503 or timeout"],"whenToPreferThis":"Choose this endpoint when you need a filtered, structured history of detected changelog mutations for Vercel specifically — particularly when you want to isolate breaking signals, version bumps, or new releases over a specific time window. It is ideal for automated monitoring pipelines or agents that need to react to Vercel's changelog changes programmatically.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:48:35.199Z","isFirstParty":false}