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MolCloud Regex Validator
x402
MolCloud Regex Validator is a paid API for AI agents from api.molcloud.net, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-17).
Tests a text corpus against a regular expression pattern and returns match validity and match count
Price / call$0.002
Success—
StatusUnknown
How this service works
40 pay-per-request AI, search, headless browser, crypto alpha & memory APIs for autonomous agents settling in USDC on Base via x402 v2.
Output
Returns a JSON object with a 'data' field containing 'isValid' (boolean indicating whether the pattern matched at all) and 'matchCount' (integer of total matches found), plus a 'status' string and the endpoint path confirming the call.
Example use cases
Log file pattern detection
“Check how many times the error pattern 'ERROR:\s+\w+' appears in this log dump using global flag: 'INFO: start\nERROR: timeout\nINFO: retry\nERROR: conn_refused'”
Email format validation in user input
“Does the regex '^[\w.-]+@[\w.-]+\.\w{2,}$' with no flags match the string 'jane.doe@gmail.com'? I need to know if it's valid and the match count.”
Extracting version numbers from release notes
“Run the pattern 'v\d+\.\d+\.\d+' with the global flag against this text and tell me how many version numbers appear: 'Released v1.0.0, updated in v1.2.3, latest is v2.0.1.'”
Technical details
Endpoint
POSThttps://api.molcloud.net/api/tools/regex?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs lightweight, pay-per-use regex validation or match counting without spinning up a code execution environment. Ideal for pipelines that need to validate user input formats, scan text for patterns, or count occurrences at low cost ($0.002 USDC) without managing infrastructure.
Side effects
- Invalid regex pattern syntax returns an error or isValid:false with matchCount 0
- Missing required 'pattern' or 'text' fields causes a 400-level error
- Extremely large text corpora may hit request size limits
- Unsupported flag characters may be silently ignored or cause errors
- Payment failure via x402 returns a 402 response before processing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | Text corpus to test against |
| flags | string | Regex flags (default: g) |
| pattern | string | Regular expression pattern |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {
"isValid": true,
"matchCount": 1
},
"status": "success",
"endpoint": "/api/tools/regex"
}
}Tags
x402
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