Entity File

{
  "accepted": 1,
  "coverage": {
    "complete": false,
    "consulted": [
      "gleif",
      "uk_snapshot",
      "sdn",
      "cons",
      "un",
      "eu",
      "uk"
    ],
    "not_consulted": [
      "sec",
      "abr"
    ]
  },
  "file_version": 1,
  "price": {
    "currency": "GBP",
    "list_gbp": "0.33",
    "list_pence": 33,
    "list_withheld": false,
    "rate": {
      "age_days": 3.2,
      "as_of": "2026-10-06",
      "basis": "The rate is 2026-10-06 from European Central Bank euro foreign exchange reference rates (via frankfurter.dev), 3.2 days old — inside its 7-day window.",
      "pair": "USD/GBP",
      "source": "European Central Bank euro foreign exchange reference rates (via frankfurter.dev)",
      "source_url": "https://api.frankfurter.dev/v1/latest?base=USD&symbols=GBP",
      "stale": false,
      "value": 0.75322
    },
    "rounding": {
      "direction": "down",
      "exact_usd": 0.43811901,
      "note": "The USDC amount is the pence list price converted at the rate above and rounded DOWN to the nearest base unit, so the buyer is never charged over the quoted price and any rounding falls to the buyer, never to us. The advertised USDC amount is what settles."
    },
    "settled": {
      "base_units": "438119",
      "currency": "USDC",
      "usd": 0.438119
    },
    "unit": "pence",
    "withhold_after_days": 30
  },
  "query": {
    "input": "00445790",
    "jurisdiction": null
  },
  "receipt": {
    "alg": "Ed25519",
    "key_id": "2331751858f5e3b1"
  },
  "receipt_url": "https://factstamp.agentrails.workers.dev/r/c41e77b2aa90d613",
  "sections": [
    {
      "fields": {
        "company_type": "Public Limited Company",
        "legal_name": "TESCO PLC",
        "registered_number": "00445790",
        "standing": "active",
        "status": "Active"
      },
      "id": "identity_and_standing",
      "n": 1,
      "status": "answered"
    },
    {
      "fields": {
        "country": "England",
        "postcode": "AL7 1GA"
      },
      "id": "registered_office",
      "n": 2,
      "status": "answered"
    },
    {
      "fields": {
        "previous_names": [],
        "sic_codes": [
          "47110 - Retail sale in non-specialised stores"
        ]
      },
      "id": "activity_and_history",
      "n": 3,
      "status": "answered"
    },
    {
      "fields": {
        "accounts_category": "FULL",
        "charges": {
          "registered": 12
        }
      },
      "id": "filing_position",
      "n": 4,
      "status": "answered"
    },
    {
      "fields": {
        "verdict": "not_found"
      },
      "id": "sanctions",
      "n": 5,
      "status": "answered"
    },
    {
      "fields": {
        "parent_statement": "…",
        "verdict": "found"
      },
      "id": "ownership",
      "n": 6,
      "status": "answered"
    },
    {
      "fields": {
        "complete": false,
        "not_consulted": [
          "sec",
          "abr"
        ]
      },
      "id": "coverage",
      "n": 7,
      "status": "answered"
    }
  ],
  "tool": "check_entity_file",
  "verdict": "found"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://factstamp.agentrails.workers.dev/entity-file' \
  -H 'content-type: application/json' \
  --data-raw '{"query":"00445790"}'

# 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://factstamp.agentrails.workers.dev/entity-file' \
  -H 'content-type: application/json' \
  --data-raw '{"query":"00445790"}' \
  | 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 $0.438119 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.438119" });
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 $0.438119 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Ffactstamp.agentrails.workers.dev%2Fentity-file&method=POST
const res = await pay("https://factstamp.agentrails.workers.dev/entity-file", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "query": "00445790"
  }),
});
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 $0.438119 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.438119"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://factstamp.agentrails.workers.dev/entity-file",
        json={
            "query": "00445790",
        },
    )
    print(res.status_code, res.text)