ToolVet
77trust / 100

Match

by Find matches and capture groups in Developer tools

x402 APIPassing, checked 2 h ago

Find the first match (or all matches with all=true) of a RE2 pattern, returning each match's text, start/end offsets, and numbered and named capture groups. No match is a successful 200 with an empty match list.

POST
https://regex.openverbs.com/v1/match
Price
$0.004
per call in USDC
Uptime
100%
last 30 days
Response time
563 ms
633 ms slowest 5%
Last check
Passed
2 h ago, next any minute now

Run a free test callHow to call it

Reliability

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Status and outage history · Atom feed · Watch with other listings

How to call it

POST https://regex.openverbs.com/v1/match

Each call costs $0.004 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

POST https://regex.openverbs.com/v1/match
content-type: application/json

{
  "all": true,
  "input": "Ada Lovelace",
  "pattern": "([A-Za-z]+)"
}

Parameters

ParameterTypeRequiredDescription
allbooleanNoReturn every match instead of just the first. Default false.
flagsstringNoAny of i (case-insensitive), m (multiline ^$), s (dotall). Default none.
inputstringYesThe subject text.
patternstringYesRE2 regular-expression pattern.

Example response

The listing has no example response.

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.004.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://regex.openverbs.com/v1/match' \
  -H 'content-type: application/json' \
  --data-raw '{"all":true,"input":"Ada Lovelace","pattern":"([A-Za-z]+)"}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://regex.openverbs.com/v1/match' \
  -H 'content-type: application/json' \
  --data-raw '{"all":true,"input":"Ada Lovelace","pattern":"([A-Za-z]+)"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.004 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.004" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.004 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fregex.openverbs.com%2Fv1%2Fmatch&method=POST
const res = await pay("https://regex.openverbs.com/v1/match", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "all": true,
    "input": "Ada Lovelace",
    "pattern": "([A-Za-z]+)"
  }),
});
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.004 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.004"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://regex.openverbs.com/v1/match",
        json={
            "all": True,
            "input": "Ada Lovelace",
            "pattern": "([A-Za-z]+)",
        },
    )
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

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2 h agoPassed402508 ms$0.004
7 h agoPassed402563 ms$0.004
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Show 10 older checks
26 h agoPassed402565 ms$0.004
30 h agoPassed402633 ms$0.004
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42 h agoPassed402548 ms$0.004
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2 days agoPassed402563 ms$0.004
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2 days agoPassed402170 ms$0.004
3 days agoPassed402172 ms$0.004