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Cron Expression Explainer
x402
Cron Expression Explainer is a paid API for AI agents from api.fastapi.online, paid per call via x402, $0.0005/call, status unknown (last checked 2026-09-14).
Takes a cron expression string and returns a human-readable explanation of its schedule
Price / call$0.0005
Success—
StatusUnknown
How this service works
Chat, embeddings, OCR, speech-to-text, image editing, image understanding (captioning/Q&A), text-to-speech, translation, writing tools, classification tools, developer tools, local utilities, format/checksum validators, encoding & crypto utilities, date/time calculators, geo/coordinate math, math & finance calculators, novelty tools, and business/social writing generators — 179 endpoints in all, across multiple specialized self-hosted models. Pay per call with crypto — no signup — or get an API key.
Output
A plain-English explanation of the cron expression describing when and how often the scheduled job runs (e.g. 'Runs every weekday at 9:00 AM').
Example use cases
Debugging an unfamiliar cron job
“I found this cron expression in our server config — '30 4 1,15 * *' — can you tell me exactly when it runs?”
Verifying a newly written cron schedule
“I wrote this cron expression '0 0 * * 0' to run a weekly backup every Sunday midnight — can you explain it back to me in plain English to make sure it's right?”
Onboarding a non-technical teammate
“Our cron job has the expression '*/5 * * * *' — can you explain what that means in simple terms so I can put it in the documentation for non-developers?”
Technical details
Endpoint
POSThttps://api.fastapi.online/cron-explainWhen to prefer
Use this endpoint when you need a quick, cheap ($0.0005 USDC), no-signup conversion of a cron expression to human-readable text — especially in developer workflows, CI/CD documentation generation, or chatbot assistants helping users understand scheduled jobs. Prefer this over a general LLM call when you want a deterministic, purpose-built parser rather than a probabilistic guess.
Side effects
- Invalid or malformed cron expression returns an error response
- Empty string input rejected due to minLength:1 constraint
- Cron expression exceeding 100 characters rejected
- Non-standard cron extensions (e.g. @yearly, @reboot macros) may not be supported
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| cron_expression | string |
Tags
x402
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