Token holders (multichain)

Top holders of any token on any Blockscout-hosted chain - address, balance, and share of supply, ranked - bought per call from Blockscout's Pro API over x402, no API key. Concentration analysis for any ERC-20/721 on dozens of chains. Mega-tokens with hundreds of thousands to millions of holders (USDC, WETH, AERO) can exceed the upstream time budget - that returns a 500 and you are not charged. Marked untrustedContent: external explorer data, analyze don't trust.

TRY IN PLAYGROUND →

Input

Example output

{
  "chain": "8453",
  "address": "0x9401…8631",
  "holderCount": 10,
  "holders": [
    {
      "address": "0x…",
      "value": "…"
    }
  ],
  "untrustedContent": true
}

Try it - see the 402 challenge (free)

curl -i -X POST https://base-sentinel-production.up.railway.app/api/token-holders \
  -H "Content-Type: application/json" \
  -d '{"chain":"base","address":"0x9e1028F5F1D5eDe59748FFceE5532509976840E0","limit":10}'

The response is HTTP 402 Payment Required with exact payment requirements. Any x402 v2 client pays automatically and retries:

Paid call (JavaScript agent)

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://base-sentinel-production.up.railway.app/api/token-holders", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "chain": "base",
    "address": "0x9e1028F5F1D5eDe59748FFceE5532509976840E0",
    "limit": 10
  }),
});

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