Leads Lookup

{
  "businesses": [
    {
      "address": {
        "city": "Atlanta",
        "county": "Fulton",
        "source": "public listing",
        "state": "GA",
        "street": "123 Peachtree St NE",
        "zip": "30309"
      },
      "category": "General dentistry",
      "contact": {
        "basis": "read from the email address",
        "firstName": "J.",
        "lastName": "Smith"
      },
      "email": {
        "address": "[email protected]",
        "foundOn": "https://midtownfamilydental.com/contact",
        "freeMail": false,
        "grade": "A",
        "ownDomain": true,
        "roleInbox": false,
        "source": "website"
      },
      "group": "Dental clinic",
      "id": "08f2...",
      "listing": {
        "confidence": 0.98,
        "lastUpdated": "2026-09-14",
        "possiblyClosed": false,
        "sources": 2
      },
      "name": "Midtown Family Dental",
      "phone": "+14045550100",
      "signals": {
        "hiring": false,
        "onlineBooking": [
          "zocdoc"
        ],
        "payments": [],
        "siteCopyrightYear": 2025,
        "sitePlatform": "wordpress"
      },
      "website": "https://midtownfamilydental.com",
      "websiteProof": "their phone number and street address are on the site",
      "websiteStatus": "live"
    }
  ],
  "count": 1,
  "found": true,
  "priceUsd": 0.01,
  "query": {
    "phone": "+14043552001"
  }
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.liquidagent.ai/v1/leads/lookup?phone=4043552001'

# 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 - 'https://api.liquidagent.ai/v1/leads/lookup?phone=4043552001' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// 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 $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
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 $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.liquidagent.ai%2Fv1%2Fleads%2Flookup
const res = await pay("https://api.liquidagent.ai/v1/leads/lookup?phone=4043552001");
console.log(res.status, await res.text());

# 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 $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://api.liquidagent.ai/v1/leads/lookup?phone=4043552001")
    print(res.status_code, res.text)