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Flashbots

MEV Protection focuses on protecting users from vulnerabilities such as front-running in Ethereum transactions. This is achieved through integration with Flashbots' solutions.

/getflashbotblocks

get
https://api.expand.network/chain/getflashbotblocks
Get details of the flashbot blocks.
Sample Request
Sample Response
https://api.expand.network/chain/getflashbotblocks?chainId=1
{
"status": 200,
"msg": "success",
"data": {
"paris": 1,
"blocks": [
{
"block_number": 18974792,
"miner_reward": "17726971662419410",
"fee_recipient_eth_diff": "17726971662419410",
"miner": "0xDAFEA492D9c6733ae3d56b7Ed1ADB60692c98Bc5",
"fee_recipient": "0xDAFEA492D9c6733ae3d56b7Ed1ADB60692c98Bc5",
"coinbase_transfers": "0",
"eth_sent_to_fee_recipient": "0",
"gas_used": 8039689,
"gas_price": "2204932511",
"effective_priority_fee": "2204932511",
"transactions": [
{
"transaction_hash": "0xa34125f19982fdcd8f8ac012b7924ecf145d9f1c5a5aae060b68e7d0b403c491",
"tx_index": 0,
"bundle_type": "flashbots",
"bundle_index": 0,
"block_number": 18974792,
"eoa_address": "0x5DB4b98e3deF62f0fce1267Db1d77639C43C3B14",
"to_address": "0x77E06c9eCCf2E797fd462A92B6D7642EF85b0A44",
"gas_used": 106331,
"gas_price": "31119562123",
"coinbase_transfer": "0",
"eth_sent_to_fee_recipient": "0",
"total_miner_reward": "3308974160100713",
"fee_recipient_eth_diff": "3308974160100713"
},
{
"transaction_hash": "0x5719b3ee2891cd3d4bdbcf3d5d3b41fb2f68f3e027ee825b84ca4b6b51ddef8d",
"tx_index": 0,
"bundle_type": "mempool",
"bundle_index": 1,
"block_number": 18974792,
"eoa_address": "0xFB12622b729599db9c30469bD36787cA2e9413c3",
"to_address": "0x04d44A44E0be0a692938baeC467F22c4dBDF719b",
"gas_used": 21000,
"gas_price": "17607123388",
"coinbase_transfer": "0",
"eth_sent_to_fee_recipient": "0",
"total_miner_reward": "369749591148000",
"fee_recipient_eth_diff": "369749591148000"
}
]
},
{
"block_number": 18974736,
"miner_reward": "24107460683890845",
"fee_recipient_eth_diff": "24107460683890845",
"miner": "0xDAFEA492D9c6733ae3d56b7Ed1ADB60692c98Bc5",
"fee_recipient": "0xDAFEA492D9c6733ae3d56b7Ed1ADB60692c98Bc5",
"coinbase_transfers": "0",
"eth_sent_to_fee_recipient": "0",
"gas_used": 17311402,
"gas_price": "1392577024",
"effective_priority_fee": "1392577024",
"transactions": [
{
"transaction_hash": "0xa049c8a8ce354fca67277d7218fd4b70c798d6c92d7e2ab5779d644187dfa0bb",
"tx_index": 0,
"bundle_type": "flashbots",
"bundle_index": 0,
"block_number": 18974736,
"eoa_address": "0x000812de2241aB594aE154060028F70F39DAE000",
"to_address": "0x00fa0B420C3119F473c2463104FB9d4E91E445af",
"gas_used": 21000,
"gas_price": "26962839990",
"coinbase_transfer": "0",
"eth_sent_to_fee_recipient": "0",
"total_miner_reward": "566219639790000",
"fee_recipient_eth_diff": "566219639790000"
},
{
"transaction_hash": "0x09486a4e90887c631f3dbb2f33a4c0d700f7079e48eba48580f4d74ade51f5fc",
"tx_index": 1,
"bundle_type": "flashbots",
"bundle_index": 0,
"block_number": 18974736,
"eoa_address": "0x00fa0B420C3119F473c2463104FB9d4E91E445af",
"to_address": "0x6B175474E89094C44Da98b954EedeAC495271d0F",
"gas_used": 47018,
"gas_price": "26962839990",
"coinbase_transfer": "0",
"eth_sent_to_fee_recipient": "0",
"total_miner_reward": "1267738810649820",
"fee_recipient_eth_diff": "1267738810649820"
}
]
}
],
"latest_block_number": 18974792
}
}

/getflashbottransactions

get
https://api.expand.network/chain/getflashbottransactions
Get details of the flashbot transactions.
Sample Request
Sample Response
https://api.expand.network/chain/getflashbottransactions?chainId=1
{
"status": 200,
"msg": "success",
"data": {
"transactions": [
{
"transaction_hash": "0xbcf55b7e9488135c12f3e70bd2a191cc19913475de6937f54cb9843865416391",
"tx_index": 0,
"bundle_index": 21,
"block_number": 18975317,
"eao_address": "0x2aC74Bd02EE017fa05629432Dd3728720c455032",
"to_address": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
"gas_used": 30428,
"gas_price": "10000002",
"coinbase_transfer": "0",
"eth_sent_to_fee_recipient": "0",
"total_miner_reward": "304280060856",
"fee_recipient_eth_diff": "304280060856"
},
{
"transaction_hash": "0xd441a44e2adf57f0d53e027d4441cdfee8653cd7f259ec0c90b60ea144b31d32",
"tx_index": 0,
"bundle_index": 20,
"block_number": 18975317,
"eao_address": "0x758aC3DC8FB6F939adf42bB83e717f94619052f5",
"to_address": "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
"gas_used": 118712,
"gas_price": "11300000",
"coinbase_transfer": "0",
"eth_sent_to_fee_recipient": "0",
"total_miner_reward": "1341445600000",
"fee_recipient_eth_diff": "1341445600000"
},
{
"transaction_hash": "0x02cbeb153f91225abcdad3cd4d39d457b5e13f3fb1191f26c73c328c50f54071",
"tx_index": 0,
"bundle_index": 19,
"block_number": 18975317,
"eao_address": "0x4a25D28d10B02BCF13a16068F56d167D8F96d093",
"to_address": "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
"gas_used": 181502,
"gas_price": "12500000",
"coinbase_transfer": "0",
"eth_sent_to_fee_recipient": "0",
"total_miner_reward": "2268775000000",
"fee_recipient_eth_diff": "2268775000000"
},
{
"transaction_hash": "0x2b89ed3dbfe8946229468f33e31ed447631c192906344b7c62b6e927a7a5a512",
"tx_index": 12,
"bundle_index": 18,
"block_number": 18975317,
"eao_address": "0x4960DC043DDc244A02192898B3e2F1730194F0ac",
"to_address": "0xf2B2420CEff184EEc76B3de15bd90C5734e45449",
"gas_used": 21000,
"gas_price": "10000001",
"coinbase_transfer": "0",
"eth_sent_to_fee_recipient": "0",
"total_miner_reward": "210000021000",
"fee_recipient_eth_diff": "210000021000"
}
],
"latest_block_number": 18975317
}
}

/getflashbotbundle

get
https://api.expand.network/chain/getflashbottransactions
Get details of the specified flashbot bundle.
Sample Request
Sample Response
https://api.expand.network/chain/getflashbotbundle?bundleHash=0x2228f5d8954ce31dc1601a8ba264dbd401bf1428388ce88238932815c5d6f23f
{
"status": 200,
"msg": "success",
"data": {
"transactions": [
{
"transaction_hash": "0xd9cdf1483a85aa206625c66fea49059b96ffae1c086f76664cfa3f91a495d73a",
"tx_index": 0,
"bundle_index": 3,
"block_number": 9091437,
"eao_address": "0x8D460B72eaF3d63830E16C22d1Fc6908D0834Abe",
"to_address": "0x8D460B72eaF3d63830E16C22d1Fc6908D0834Abe",
"gas_used": 21000,
"gas_price": "1000000000",
"coinbase_transfer": "0",
"eth_sent_to_fee_recipient": "0",
"total_miner_reward": "21000000000000",
"fee_recipient_eth_diff": "21000000000000"
}
]
}
}

/sendtransaction

post
https://api.expand.network/chain/sendtransaction
Send transaction on the chain.
Sample Request
Sample Response
With mevProtection: true
{
"chainId":"1",
"rawTransaction": "0xf8a68205180f82753e94dc31ee1784292379fbb2964b3b9c4124d8f89c6080b844a9059cbb000000000000000000000000a67e9b68c41b0f26184d64c26e0b2b81466e5994000000000000000000000000000000000000000000000000000000174876e8002ea0952b0468aff066f3e00a1d476b8894d84bfc47a1a3cdab9d6809a3461cc713e5a018219ee382aa3c7edf73a87bd8a75e2c40a97efbdf56a6cfd353af06fb74101d",
"mevProtection": true
}
With mevProtection: true
{
"status": 200,
"msg": "success",
"data": {
"txHash": "0xd9cdf1483a85aa206625c66fea49059b96ffae1c086f76664cfa3f91a495d73a"
}
}