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28 changes: 28 additions & 0 deletions docs/flashbots-auction/searchers/advanced/rpc-endpoint.mdx
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Expand Up @@ -181,6 +181,34 @@ example response:
}
```

### eth_sendPrivateTransaction

The `eth_sendPrivateTransaction` JSON-RPC method is used to send a single transaction for inclusion while staying private. See https://docs.flashbots.net/flashbots-protect/overview for more information.

```json
{
"jsonrpc": "2.0",
"id": 1,
"method": "eth_sendPrivateTransaction",
"params": [
{
"tx": "0x123...", // raw signed tx
"maxBlockNumber": "0xcd23a0", // optional, after this block, the tx is thrown away. If greater than 25 blocks in the future, then it will be silently clamped to current+25.
"preferences": { "fast": true } // optional, see https://docs.flashbots.net/flashbots-protect/rpc/fast-mode
}
]
}
```

example response:
```json
{
"jsonrpc": "2.0",
"id": "123",
"result": "0x111..." // tx-hash
}
```

### Authentication

To authenticate your request, the relay requires you sign the payload and include the signed payload in the `X-Flashbots-Signature` header of your request.
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