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Strale Regex Explain
x402
Strale Regex Explain is a paid API for AI agents from api.strale.io, paid per call via x402, $0.054/call, status unknown (last checked 2026-09-14).
Takes a regular expression and optional test strings and returns a plain-English explanation of what the regex matches and how it works
Price / call$0.054
Success—
StatusUnknown
How this service works
The trust layer for AI agents — 250+ independently tested data capabilities across 27 countries. Execute capabilities via REST, MCP, A2A, or x402 micropayments. Every call returns an audit record with cryptographic chain hashing.
Output
A structured JSON response containing a plain-English explanation of the regex pattern, a breakdown of each component (character classes, quantifiers, groups, anchors), descriptions of what the pattern will and won't match, results of any provided test strings against the pattern, and a cryptographically hashed audit record for every call.
Example use cases
Decode inherited codebase regex
“I found this regex in our codebase and no one knows what it does anymore: ^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$ — can you explain it in plain English?”
Validate regex before deployment
“Before I deploy this input validation regex, explain what it will and won't match: ^\+?[1-9]\d{1,14}$ — I want to make sure it handles international phone numbers correctly.”
Learn regex from example pattern
“I'm trying to learn regex — can you break down this pattern step by step and explain each part: (\d{4})-(\d{2})-(\d{2}) and test it against '2024-01-15' and 'today'?”
Technical details
Endpoint
GEThttps://api.strale.io/x402/v2/regex-explainWhen to prefer
Choose this endpoint when you need a structured, auditable explanation of a regex pattern — especially in compliance-sensitive or enterprise contexts where the cryptographic audit trail matters. Useful for developers reverse-engineering legacy code, validating regexes before production deployment, or learning regex syntax. The x402 micropayment model means no API key setup is needed.
Side effects
- Invalid or malformed regex pattern returns a parse error
- Missing regex input returns 400 validation error
- Extremely complex or catastrophically backtracking regex may time out
- Payment failure via x402 returns 402 with payment details
- Test strings parameter is optional but must be a string if provided
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| test_strings | string |
Tags
x402
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