{"uid":"cap_ThTxsE6EZC6Y8hMJob2tM","slug":"changelog-state-api-change-history-for-viem-707ca1f0","name":"Changelog State API – Change History for viem","description":"Detected changelog update history for one tracked vendor.","url":"https://changelog-state-api.replit.app/api/monitors/viem/changes?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":{"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_UzjI-PymJViiF0vaf--1H","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 the detected changelog update history (new releases, version changes, breaking signals, etc.) for the viem vendor.","exampleAgentPrompt":"Show me the last 20 changelog changes detected for viem, filtering to only new releases and breaking signals since last Monday.","exampleUseCases":[{"title":"Detect breaking changes in viem","prompt":"Have there been any breaking signals detected in viem's changelog in the past 30 days? Show me up to 50 results."},{"title":"Track viem version bumps over time","prompt":"Pull the version_changed and new_release events for viem since January 1st so I can see how often they've been shipping."},{"title":"Automated release monitoring alert","prompt":"Check if viem has had any new releases detected since yesterday morning — I want to know if I need to update my dependencies."}],"resultDescription":"A JSON list of detected change events for viem, each describing the type of change (new_release, version_changed, date_changed, title_changed, or breaking_signal), when it was detected, and associated metadata about the changelog update.","failureModes":["Invalid or unrecognized vendor slug returns empty results or 404","'since' timestamp in wrong format causes validation error","Requesting more than 200 items via 'limit' is rejected","Paid endpoint — missing or invalid x402 payment header results in 402 Payment Required","Network timeout if Replit host is cold-starting"],"whenToPreferThis":"Use this endpoint when you need historical or recent change events for the viem vendor specifically, including fine-grained filtering by change type (breaking signals, version bumps, etc.) or time window. Prefer this over a general releases endpoint when you care about the detection timeline rather than just the latest structured release data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-25T00:35:15.250Z","isFirstParty":false,"canonicalSlug":"changelog-state-api-change-history-for-viem-707ca1f0"}