{"uid":"cap_XNHWrFT6PqpXC9Gt-aBos","slug":"genesis-agent-tools-api-breaking-change-checker-eae01993","name":"GENESIS Agent Tools — API Breaking Change Checker","description":"Pay-per-call x402 APIs for autonomous agents on Base USDC: API compatibility analysis, bounded HTTP/JSON workflows, URL evidence analysis, crypto price consensus, and agent/MCP readiness checks.","url":"https://genesis-agent-tools.genesisagenttools.workers.dev/api/flagships/check-api-breaking-change?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"tier":{"enum":["quick","deep"],"type":"string"},"input":{"type":"object","properties":{"current":{},"previous":{}}}}},"responseSchema":{"type":"json","example":{"ok":true,"tier":"quick","result":{},"product":"release-guardian","evidence":[],"warnings":[]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_dkE4te8SSWaq1nit0JuQE","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Analyzes two API definitions (current and previous) to detect breaking changes and compatibility issues between versions","exampleAgentPrompt":"Can you do a quick breaking-change check on my API — here's the previous version spec and here's the updated one — and tell me if anything would break existing clients?","exampleUseCases":[{"title":"Pre-release API compatibility gate","prompt":"Before I publish this new version of my payments API, run a quick breaking-change check against the previous release spec and tell me if any existing clients would break."},{"title":"CI pipeline compatibility validation","prompt":"I've got two API schemas — the one from last week's release and the one we're about to ship — do a deep analysis to flag any breaking changes so I can block the deploy if needed."},{"title":"Third-party integration safety check","prompt":"We're updating our public REST API and a bunch of third-party partners depend on it — can you compare the old and new specs and give me a full evidence report of anything that could break them?"}],"resultDescription":"Returns a JSON object with an 'ok' status flag, the analysis tier used ('quick' or 'deep'), a structured result object describing any breaking changes found, a product identifier ('release-guardian'), an evidence array with supporting details, and a warnings array for non-breaking but notable changes.","failureModes":["Missing or malformed 'current' or 'previous' API definition in input — returns validation error","Invalid tier enum value (must be 'quick' or 'deep') — returns 400 error","API definitions too large or complex to process within timeout — may return partial result or timeout error","Unparseable or non-JSON API spec format — returns parsing error","Payment failure via x402 protocol — returns 402 Payment Required"],"whenToPreferThis":"Choose this endpoint when you need automated, pay-per-call breaking change detection without standing up your own diffing infrastructure, especially in agentic pipelines or CI/CD workflows where you want lightweight, on-demand API compatibility checks paid in USDC on Base. Prefer the 'deep' tier for comprehensive release gates and 'quick' tier for fast pre-commit checks.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T00:50:46.867Z","isFirstParty":false,"canonicalSlug":"genesis-agent-tools-api-breaking-change-checker-eae01993"}