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Mev Recent Blocks

by MEV recent blocks in Onchain & crypto

x402 APIPassing, checked 2 h ago

Last N MEV-Boost-built blocks via the Flashbots relay. For each block: slot, block number/hash, builder pubkey, proposer pubkey, gas used/limit, ETH paid to the proposer, and tx count. Use to monitor block-builder market share, proposer revenue, or to correlate an arbitrage opportunity with the block it landed in.

POST https://agent402.tools/api/mev-recent-blocks

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
187 ms typical, 187 ms slowest 5%
Last check
2 h ago
Next check
any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://agent402.tools/api/mev-recent-blocks" \
  -H "content-type: application/json" \
  -d '{"limit":5}'
import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagent402.tools%2Fapi%2Fmev-recent-blocks
const res = await pay("https://agent402.tools/api/mev-recent-blocks", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"limit":5}),
});
console.log(await res.json());

Example input

{
  "limit": 5
}

Example output

{
  "avgEthPerBlock": 0.072345,
  "blocks": [
    {
      "blockHash": "0xabc...",
      "blockNumber": 22345678,
      "builderPubkey": "0x9000...",
      "builderShort": "0x90000000…abcdef",
      "gasLimit": 30000000,
      "gasUsed": 14987654,
      "numTx": 187,
      "parentHash": "0xdef...",
      "proposerFeeRecipient": "0x1234...",
      "proposerPubkey": "0xa000...",
      "slot": 12345678,
      "valueEth": 0.072345,
      "valueWei": "72345000000000000"
    }
  ],
  "count": 1,
  "relay": "flashbots",
  "totalEthToProposers": 0.072345
}

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
2 h agoPassed402207 ms$0.002
7 h agoPassed402187 ms$0.002