EAS attestations
POST /api/eas-attestationsList EAS (Ethereum Attestation Service) attestations for an address as recipient, attester, or either, on mainnet/Base/Optimism/Arbitrum/Sepolia. Returns attestation id, attester, recipient, schema id, revocable/revoked flags, timestamp, and decoded data JSON. Use to verify Gitcoin Passport stamps, Coinbase verifications, KYC attestations, or any other on-chain claim about an address.
Input
| Field | Type | Description |
|---|---|---|
address * | string | Ethereum address (0x-prefixed 40-hex). |
network | string | EAS network: mainnet, base, optimism, arbitrum, sepolia (default mainnet). |
role | string | Filter to attestations where the address is the recipient, attester, or either (default recipient). |
limit | number | Max attestations to return (1-100, default 20). |
Example output
{
"address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"network": "mainnet",
"role": "recipient",
"count": 1,
"attestations": [
{
"id": "0xabc...",
"attester": "0xdef...",
"recipient": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"schemaId": "0x123...",
"revocable": true,
"revoked": false,
"timestamp": 1751234567,
"decodedData": "[{\"name\":\"verified\",\"type\":\"bool\",\"value\":{\"value\":true}}]"
}
],
"source": "easscan"
}
Try it - see the 402 challenge (free)
curl -i -X POST https://agent402.tools/api/eas-attestations \
-H "Content-Type: application/json" \
-d '{"address":"0xd8da6bf26964af9d7eed9e03e53415d37aa96045","network":"mainnet","limit":5}'
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://agent402.tools/api/eas-attestations", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
"address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"network": "mainnet",
"limit": 5
}),
});
Related tools
Crypto order book
GET /api/crypto-orderbookL2 order-book snapshot for a spot pair: best bid/ask, mid price, spread (absolute + %), and the top N aggregated price l…
Stablecoin peg monitor
GET /api/stablecoin-pegLive $1-peg deviation for the top USD stablecoins (USDT, USDC, USDS, DAI, USDe, PYUSD, USDD, TUSD, FDUSD by default, or …
Wallet balance (native + ERC-20)
POST /api/wallet-balanceLook up the native coin balance (ETH/MATIC) plus every ERC-20 holding for a wallet address on Ethereum, Base, Polygon, A…