Name: regex-test
Price: 0.005 USDC
Availability: InStock

$ man regex-test

agentutility / wordmint / regex-test

PRICE / CALL

$0.005

USDC · base mainnet · scheme: exact

METHOD

POST

CLUSTER

wordmint

CATEGORY

STATUS

● live

NAME

regex-test — tests a javascript regex against sample inputs and shows exactly what matched

SYNOPSIS

POST https://x402.agentutility.ai/regex-test
     Content-Type: application/json
     X-PAYMENT:    <signed-transferWithAuthorization>

     { ... }

↳ first call → 402 Payment Required. Sign USDCtransferWithAuthorization, retry with theX-PAYMENT header.

DESCRIPTION

Tests a JavaScript regex against sample inputs and shows exactly what matched. Takes a pattern + flags and an array of test inputs, then returns a per-input matched / not-matched verdict, every match with byte index, all numbered capture groups, and named groups (?<name>...). Catches catastrophic-backtrack-shaped patterns up front (nested unbounded quantifiers) and rejects them with a clear error. Companion to regex-from-prompt: that one generates a pattern from natural language, this one tells you whether your pattern actually matches what you think it matches. Use it as a regex tester, pattern matcher, regex playground, verify-a-pattern check, or match-and-capture extractor.

INPUT — request schema

property	type	description	req?
pattern	string	JavaScript regex pattern (without surrounding slashes). Max 500 chars.	required
flags	string	Optional regex flags string like 'gi', 'u', 'ms'. JS standard flags only (g i m s u y d v).	optional
inputs	array	1-100 test strings. Each string max 5000 chars.	required

OUTPUT — response shape

field	type	description
pattern	string	Echo of the input pattern.
flags	string	Echo of the input flags string.
input_count	number	Total number of inputs tested.
matched_count	number	How many inputs had at least one match.
unmatched_count	number	How many inputs had zero matches.
results	array	Per-input result objects: input, input_index, matched boolean, match_count, truncated flag (when capped at 100 matches), and matches array. Each match has the full match string, start index, numbered groups array, and named groups object.

EXAMPLES — two ways to call

EXAMPLE 1 · curl

curl -X POST https://x402.agentutility.ai/regex-test \
  -H 'Content-Type: application/json' \
  -d '{ }'

first response = 402 Payment Required with payment requirements; sign + retry with X-PAYMENT.

EXAMPLE 2 · mcp

# Install the MCP package for this endpoint's cluster
npx -y @agentutility/mcp-<cluster>

# Required: EVM private key with USDC on Base
export X402_PRIVATE_KEY=0x...

# Then call the regex-test tool from your MCP-aware agent.

MCP server handles payment automatically — your coding agent just calls the tool by name.

METADATA

tags: wordmintregexpattern-matchingregex-testercapture-groupsnamed-groups
methods: POST
cluster: wordmint
price: $0.005 USDC per call

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