Regex Tester (timeout-guarded)

Test a regex pattern against text (findall/search/fullmatch/split/sub) using a timeout-guarded engine so a catastrophic pattern fails fast instead of hanging.

Free tier eligible — 500 calls/month with a free key from /pricing; x402 pay-per-call above quota.

Parameters

Parameter	Type	Required	Description
`pattern`	string	required	Regex pattern to test
`text`	string	required	Text to match against
`mode`	string	optional	findall \| search \| fullmatch \| split \| sub (default findall)
`flags`	array	optional	List of flag letters: i, m, s, x
`replacement`	string	optional	Replacement text (mode=sub only)
`timeout_ms`	number	optional	Timeout guard in milliseconds, 0-2000 (default 200)

Call it over MCP (JSON-RPC 2.0)

curl -s https://wingmanprotocol.com/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": {"name": "regex_tester", "arguments": {"pattern": "example", "text": "hello from an agent"}}}'

Or plain HTTP

curl -s https://wingmanprotocol.com/tools/regex_tester \
  -H 'Content-Type: application/json' \
  -d '{"pattern": "example", "text": "hello from an agent"}'

Try it live

Edit the JSON and run it — this POSTs to https://wingmanprotocol.com/tools/regex_tester from your browser.

This tool is x402-metered — agents pay per call with USDC on Base. The 402 response below is the standard x402 payment-requirements envelope: sign the EIP-3009 authorization and retry with the X-Payment header, or get a free key at /pricing (500 calls/month, no card, no crypto).