{"uid":"cap_Xk13by_iduVHZAXuO0IaL","slug":"cron-expression-explainer-2dc86110","name":"Cron Expression Explainer","description":"Free need-to-tool routing plus pay-per-call npm docs and TypeScript API signatures, npm breaking-change diffs, JavaScript-rendered browser snapshots and deterministic coding-agent checks via AgentCash/x402.","url":"https://x402-canary.nicolas-x402-16f380a7.workers.dev/v1/cron/explain","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"expression":{"type":"string"}}},"responseSchema":{"type":"json","example":{"data":{"summary":"every minute; hour=9"},"meta":{"engine":"cron"}}},"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_O2pHA9BFdCvCJUfIjyRN5","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":"Parses and explains a cron expression in plain English, returning a human-readable summary of its schedule.","exampleAgentPrompt":"Can you explain what this cron expression means in plain English: '0 9 * * 1-5'?","exampleUseCases":[{"title":"Debugging a job scheduler config","prompt":"I've got this cron expression in my CI pipeline: '*/15 8-18 * * MON-FRI' — can you tell me in plain English when it will actually run?"},{"title":"Reviewing a colleague's scheduled task","prompt":"My teammate added '0 0 1 * *' to our cron jobs and I have no idea when that fires — can you explain it?"},{"title":"Validating a newly written cron schedule","prompt":"I just wrote the cron '30 4 * * 0' to run a weekly cleanup — can you confirm in plain English what schedule that actually represents?"}],"resultDescription":"Returns a JSON object with a 'data.summary' field containing a plain-English description of when the cron expression triggers (e.g. 'every minute; hour=9'), plus a 'meta.engine' field identifying the parsing engine used ('cron').","failureModes":["Invalid or malformed cron expression returns an error or empty summary","Missing 'expression' field in request body causes a validation error","Expressions with non-standard syntax (e.g. @reboot, @yearly macros) may not be supported","Network/worker errors on the Cloudflare Worker may return 5xx responses"],"whenToPreferThis":"Choose this endpoint when an AI coding agent or developer needs a quick, deterministic plain-English explanation of a cron expression without building or maintaining their own parser. It is ideal for pipelines that encounter cron strings in config files, CI/CD YAML, or user-submitted job definitions and need to surface human-readable schedule descriptions. Prefer it over general LLM interpretation when you want a structured, engine-verified output rather than a probabilistic natural language guess.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:41:46.197Z","isFirstParty":false}