Multi-chain EVM RPC (read-only) · EVM RPC

POSTBaseSolanaArbitrumPolygonMonadAvalancheeip155:1329OptimismFraxtaleip155:42220stellar:pubnetalgorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=

$0.004

per call · USD Coin on Base

Read-only JSON-RPC against Ethereum, Base, Polygon, Arbitrum, or Optimism with built-in multi-endpoint failover - one paid call, no node or API key of your own. Prefer the named reads (block-number, chain-info, block-info, event-logs, erc721-owner, contract-code) for common tasks - they validate inputs and cost less; use this when you need a whitelisted method they do not wrap.

Endpoint

POST https://agent402.tools/api/evm-rpc

Calls / 30d

Unique payers / 30d

Aug 31

Last called

exact

Payment scheme

Call this service

TypeScript · @x402/fetch

import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://agent402.tools/api/evm-rpc", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "method": "eth_blockNumber",
    "network": "base",
    "params": []
  }),
});
const data = await res.json();

cURL

curl -X POST \
  "https://agent402.tools/api/evm-rpc" \
  -H "Content-Type: application/json" \
  -d '{"method":"eth_blockNumber","network":"base","params":[]}' \
  -H "X-PAYMENT: <signed x402 payment>"

Example response

{
  "method": "eth_blockNumber",
  "network": "base",
  "result": "0x1a2b3c4"
}

Payment details

Pay to0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0

AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913

NetworksBase, Solana, Arbitrum, Polygon, Monad, Avalanche, eip155:1329, Optimism, Fraxtal, eip155:42220, stellar:pubnet, algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=

Schemesexact, upto

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