Lei Ownership

{
  "children_sample": [
    {
      "lei": "254900PNPB5L5VNJNS35",
      "name": "BLOOMBERG BETA 2016 L.P."
    },
    {
      "lei": "254900JY1M565T6QM850",
      "name": "Bloomberg Finance Singapore L.P."
    }
  ],
  "children_total": 27,
  "direct_parent": {
    "lei": "549300RMUDWPHCUQNE66",
    "name": "Bloomberg Inc."
  },
  "found": true,
  "lei": "549300B56MD0ZC402L06",
  "name": "Bloomberg L.P.",
  "source": "GLEIF (CC0)",
  "status": "ACTIVE",
  "ultimate_parent": {
    "lei": "549300RMUDWPHCUQNE66",
    "name": "Bloomberg Inc."
  }
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://data.greeneris.io/v1/lei/ownership?lei=549300B56MD0ZC402L06'

# 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://data.greeneris.io/v1/lei/ownership?lei=549300B56MD0ZC402L06' \
  | 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 $0.005 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.005" });
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 $0.005 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fdata.greeneris.io%2Fv1%2Flei%2Fownership
const res = await pay("https://data.greeneris.io/v1/lei/ownership?lei=549300B56MD0ZC402L06");
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 $0.005 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.005"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://data.greeneris.io/v1/lei/ownership?lei=549300B56MD0ZC402L06")
    print(res.status_code, res.text)