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MEV Recent Blocks via Flashbots Relay
x402
MEV Recent Blocks via Flashbots Relay is a paid API for AI agents from agent402.tools, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).
Returns the last N MEV-Boost-built blocks from the Flashbots relay, including slot, block metadata, builder/proposer pubkeys, gas stats, ETH paid, and tx count.
Price / call$0.002
Success—
StatusUnknown
How this service works
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.
Output
A list of up to 100 recent MEV-Boost-built blocks, each containing: slot number, block number and hash, builder pubkey, proposer pubkey, gas used, gas limit, ETH paid to proposer, and transaction count.
Example use cases
Example prompt
“Pull the last 50 MEV-Boost blocks from the Flashbots relay so I can see which builders are most active, how much ETH proposers are earning, and the gas usage trends.”
Technical details
Endpoint
POSThttps://agent402.tools/api/mev-recent-blocksWhen to prefer
Use this endpoint when you need real-time or near-real-time data on recent MEV-Boost blocks from the Flashbots relay — especially for monitoring builder market share, proposer revenue trends, gas utilization, or block-by-block MEV activity on Ethereum. Prefer over block explorers when you need structured, machine-readable relay-specific metadata in bulk.
Side effects
- limit out of range (must be 1-100) returns validation error
- Flashbots relay API unavailable causes upstream timeout
- no recent blocks available returns empty list
- invalid request body returns 400 error
- payment not included or insufficient returns 402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | number | Number of recent blocks (1-100, default 20). |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 1,
"relay": "flashbots",
"blocks": [
{
"slot": 12345678,
"numTx": 187,
"gasUsed": 14987654,
"gasLimit": 30000000,
"valueEth": 0.072345,
"valueWei": "72345000000000000",
"blockHash": "0xabc...",
"parentHash": "0xdef...",
"blockNumber": 22345678,
"builderShort": "0x90000000…abcdef",
"builderPubkey": "0x9000...",
"proposerPubkey": "0xa000...",
"proposerFeeRecipient": "0x1234..."
}
],
"avgEthPerBlock": 0.072345,
"totalEthToProposers": 0.072345
}
}Tags
x402
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