HTTPay Regex Test — Pattern Matching via x402

x402

HTTPay Regex Test — Pattern Matching via x402 is a paid API for AI agents from httpay.xyz, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).

Tests a regex pattern against a text string and returns all matches, capture groups, and match indices using Node.js RegExp

Price / call$0.002

Seller volume →—

Success—

StatusUnknown

How this service works

307 pay-per-call APIs (287 native + Universal Gateway proxying 37 services) powered by x402 and USDC on Base. Token intelligence, DeFi yields, MEV risk, AI tools, web scraping. No API keys, no subscriptions — pay $0.001–$0.05 per call.

Output

Returns a JSON object containing all regex matches found in the text, any capture groups within those matches, and the start/end indices of each match — powered by Node.js built-in RegExp execution.

Example use cases

Example prompt

“Test the regex pattern ^\d{3}-\d{2}-\d{4}$ against the text '123-45-6789' with no flags and show me all matches and capture groups.”

Technical details

Endpoint

POSThttps://httpay.xyz/api/regex-test

When to prefer

Use this endpoint when you need server-side regex execution with full Node.js RegExp semantics, capture group extraction, and match index data — especially useful when you want to validate or debug a regex without spinning up a local runtime, or when building an automated workflow that needs pattern matching as a pay-per-call step without API key management.

Side effects

Invalid regex pattern syntax — returns error indicating malformed pattern
Missing required fields (pattern or text) — returns 400-style error
Payment not attached or insufficient USDC balance — x402 payment required error
Catastrophic backtracking on complex patterns may cause timeout

Output

Schema · Response

{
  "type": "json",
  "example": {
    "description": "Test a regex pattern against text. POST JSON: {pattern, text, flags}. Returns all matches, capture groups, and match indices. Uses Node.js built-in RegExp."
  }
}

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How this service works

Output

Technical details

Endpoint

POSThttps://httpay.xyz/api/regex-test

When to prefer

Side effects

Invalid regex pattern syntax — returns error indicating malformed pattern
Missing required fields (pattern or text) — returns 400-style error
Payment not attached or insufficient USDC balance — x402 payment required error
Catastrophic backtracking on complex patterns may cause timeout

Output

Schema · Response

{
  "type": "json",
  "example": {
    "description": "Test a regex pattern against text. POST JSON: {pattern, text, flags}. Returns all matches, capture groups, and match indices. Uses Node.js built-in RegExp."
  }
}