ToolVet
77trust / 100

License Verify

by tollbooth in Security & trust

x402 APIPassing, checked 2 h ago

Contractor license status plus matching business-entity record. Currently served: CA, FL, MN, OR, TX, VA, WA. FL and TX also take `profession`; values at GET /v1/license/professions?state=FL|TX. Empty licenses is a paid 200. data_as_of is required.

POST
https://api.flipvo.com/v1/license/verify
Price
$0.02
per call in USDC
Uptime
100%
last 30 days
Response time
430 ms
592 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://api.flipvo.com/v1/license/verify

Each call costs $0.02 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://api.flipvo.com/v1/license/verify
content-type: application/json

{
  "license_number": "CGC012427",
  "state": "FL"
}

Parameters

ParameterTypeRequiredDescription
license_numberstring or nullNo Default: null.
namestring or nullNo Default: null.
professionstring or nullNoFL or TX only: a licensed profession instead of a contractor. GET /v1/license/professions?state=FL|TX (free) lists them. Omit for contractors. Default: null.
statestringYes

Example response

The provider's example. We can't check it without paying.

Example response, 52 lines
{
  "attribution": "Florida DBPR and Division of Corporations public records",
  "data_as_of": {
    "dbpr": "2026-09-18T00:00:00Z",
    "sunbiz": "2026-07-10T00:00:00Z"
  },
  "licenses": [
    {
      "active": true,
      "candidates": [],
      "city": "Tampa",
      "dba_name": "Fontana Construction, Inc.",
      "details": {
        "board": "06",
        "class_code": "A",
        "effective_date": "2024-08-01",
        "primary_status": "C",
        "secondary_status": "A"
      },
      "entity": {
        "band": "high",
        "entity_number": "P12345",
        "entity_type": "DOMESTIC PROFIT",
        "file_date": "1989-06-01",
        "last_transaction_date": "2026-01-15",
        "name": "FONTANA CONSTRUCTION INC",
        "principal_address": {
          "city": "TAMPA",
          "country": "",
          "line1": "",
          "line2": "",
          "state": "FL",
          "zip": "33602"
        },
        "registered_agent": "JOHN FONTANA",
        "status": "A"
      },
      "expiration_date": "2026-08-31",
      "license_number": "CGC012427",
      "license_type": "CGC",
      "licensee_name": "John Fontana",
      "original_licensure_date": "1990-01-15",
      "state": "FL",
      "status": "C",
      "zip": "33602"
    }
  ],
  "query": {
    "license_number": "CGC012427"
  },
  "state": "FL"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.02.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.flipvo.com/v1/license/verify' \
  -H 'content-type: application/json' \
  --data-raw '{"license_number":"CGC012427","state":"FL"}'

# 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://api.flipvo.com/v1/license/verify' \
  -H 'content-type: application/json' \
  --data-raw '{"license_number":"CGC012427","state":"FL"}' \
  | 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 $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
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 $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.flipvo.com%2Fv1%2Flicense%2Fverify&method=POST
const res = await pay("https://api.flipvo.com/v1/license/verify", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "license_number": "CGC012427",
    "state": "FL"
  }),
});
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 $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.flipvo.com/v1/license/verify",
        json={
            "license_number": "CGC012427",
            "state": "FL",
        },
    )
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

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