Token Holders

{
  "concentration_top10_pct": 19.63,
  "holders": 949709,
  "largest": [
    {
      "address": "0x7061f0B28F5a95AaE717905Bb59AA4e08C165268",
      "amount": 1166038432.1675594,
      "contract": false,
      "ens": null,
      "name": null,
      "percentage": 11.6604,
      "scam": null
    },
    {
      "address": "0x388E263cd180409701C6f34dD7bA45E33BABC997",
      "amount": 406351804.5775266,
      "contract": true,
      "ens": null,
      "name": "GnosisSafeProxy",
      "percentage": 4.0635,
      "scam": null
    }
  ],
  "name": "Brett",
  "network": "base",
  "note": "The largest holders are often contracts (pools, bridges, exchanges): check the contract column before drawing conclusions.",
  "source": "Blockscout (https://base.blockscout.com)",
  "supply": 9999997544.340006,
  "symbol": "BRETT",
  "token": "0x532f27101965dd16442E59d40670FaF5eBB142E4"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.vextorium.com/v1/token-holders' \
  -H 'content-type: application/json' \
  --data-raw '{"limit":3,"network":"base","token":"0x532f27101965dd16442E59d40670FaF5eBB142E4"}'

# 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.vextorium.com/v1/token-holders' \
  -H 'content-type: application/json' \
  --data-raw '{"limit":3,"network":"base","token":"0x532f27101965dd16442E59d40670FaF5eBB142E4"}' \
  | 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%2Fapi.vextorium.com%2Fv1%2Ftoken-holders&method=POST
const res = await pay("https://api.vextorium.com/v1/token-holders", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "limit": 3,
    "network": "base",
    "token": "0x532f27101965dd16442E59d40670FaF5eBB142E4"
  }),
});
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.post(
        "https://api.vextorium.com/v1/token-holders",
        json={
            "limit": 3,
            "network": "base",
            "token": "0x532f27101965dd16442E59d40670FaF5eBB142E4",
        },
    )
    print(res.status_code, res.text)