{"uid":"cap_nV4c4JZmIdvk0uLJpQx1W","slug":"changelog-state-api-openzeppelin-release-feed-04906dd7","name":"Changelog State API – OpenZeppelin Release Feed","description":"Structured recent releases for one tracked vendor.","url":"https://changelog-state-api.replit.app/api/monitors/openzeppelin?utm_source=zero.xyz","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 that names no vendor and never returns data. 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_L1bRw2dsEFB7EKtX7fCc0","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 structured recent release entries for the OpenZeppelin vendor, paginated and newest-first.","exampleAgentPrompt":"Show me the 5 most recent OpenZeppelin releases with their structured changelog data so I can check if there are any breaking changes I need to know about.","exampleUseCases":[{"title":"Breaking change alert for smart contracts","prompt":"Pull the latest OpenZeppelin releases and tell me if any of them include breaking changes to their contracts library — I'm on v4.9 and want to know if upgrading is risky."},{"title":"Automated dependency update triage","prompt":"Fetch the last 10 OpenZeppelin releases and summarize what changed so I can decide whether to bump the version in our Solidity project."},{"title":"Paginated changelog audit","prompt":"Get me the first page of recent OpenZeppelin releases and then the next page after that — I want to review everything from the past few months."}],"resultDescription":"A JSON object containing a list of structured release entries for OpenZeppelin (newest first), each with version, publish date, and changelog details, plus an opaque `nextCursor` token for fetching older pages. Returns up to the requested limit (default 5, max 50) per page.","failureModes":["Invalid or malformed cursor returns HTTP 400 and is not charged","Unknown or unsupported vendor slug returns an error (use GET /api/monitors to list valid slugs)","Limit out of range (below 1 or above 50) returns a validation error","Service unavailable or upstream changelog fetch failure returns 5xx","Empty result set if no releases have been detected yet for the vendor"],"whenToPreferThis":"Use this endpoint when you need machine-readable, paginated release data specifically for OpenZeppelin from a pre-monitored feed, rather than scraping GitHub releases or npm yourself. It is ideal for agents that need to react to new OpenZeppelin versions, audit recent changes, or maintain up-to-date dependency intelligence without building custom changelog parsing. Prefer it over general web-scraping tools when low-latency structured output and cursor-based pagination are needed.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T12:31:51.764Z","isFirstParty":false,"canonicalSlug":"changelog-state-api-openzeppelin-release-feed-04906dd7"}