Extract

{
  "auth_method": "x402",
  "data": {
    "company_name": "Savills (UK) Ltd",
    "location": "33 Margaret Street, London W1G 0JD",
    "phone": "+44 (0)20 7016 3600",
    "services": [
      "Commercial property sales",
      "Investment advisory",
      "Development consultancy",
      "Valuation"
    ],
    "specialisms": [
      "Office",
      "Retail",
      "Industrial",
      "Residential development"
    ],
    "team_size": "250+",
    "website": "https://www.savills.co.uk"
  },
  "fields_extracted": [
    "company_name",
    "services",
    "team_size",
    "location",
    "phone",
    "website",
    "specialisms"
  ],
  "fields_requested": [
    "company_name",
    "services",
    "team_size",
    "location",
    "phone",
    "website",
    "specialisms"
  ],
  "status": "success",
  "url": "https://savills.co.uk/commercial-property-for-sale/unit-5-bristol-road-bs1-4na"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.terradeed.co.uk/extract' \
  -H 'content-type: application/json' \
  --data-raw '{"fields":["title","price","availability"],"url":"https://example.com/product"}'

# 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.terradeed.co.uk/extract' \
  -H 'content-type: application/json' \
  --data-raw '{"fields":["title","price","availability"],"url":"https://example.com/product"}' \
  | 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 $0.05 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.05" });
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 $0.05 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.terradeed.co.uk%2Fextract&method=POST
const res = await pay("https://api.terradeed.co.uk/extract", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "fields": [
      "title",
      "price",
      "availability"
    ],
    "url": "https://example.com/product"
  }),
});
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 $0.05 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.05"})
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.terradeed.co.uk/extract",
        json={
            "fields": [
                "title",
                "price",
                "availability",
            ],
            "url": "https://example.com/product",
        },
    )
    print(res.status_code, res.text)