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 details of the flashbot blocks.
GET https://api.expand.network/chain/getflashbotblocks
Query Parameters
Name
Type
Description
chainId
String
chainSymbol
String
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 details of the flashbot transactions.
GET https://api.expand.network/chain/getflashbottransactions
Query Parameters
Name
Type
Description
chainId
String
chainSymbol
String
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 details of the specified flashbot bundle.
GET https://api.expand.network/chain/getflashbottransactions
Query Parameters
Name
Type
Description
chainId
String
chainSymbol
String
bundleHash*
String
The bundle hash.
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
Send transaction on the chain.
POST https://api.expand.network/chain/sendtransaction
Request Body
Name
Type
Description
rpc
String
Remote procedural call URL.
chainId
String
chainSymbol
String
rawTransaction*
String
The encoded transaction, obtained from the signed transaction.
bdnTransaction
Boolean
If true, then txn goes through the bdn route, which speeds up the transaction process.
By default, false.
mevProtection
Boolean
If true, then txn goes through flashbots.
With mevProtection: true
{
"chainId":"1",
"rawTransaction": "0xf8a68205180f82753e94dc31ee1784292379fbb2964b3b9c4124d8f89c6080b844a9059cbb000000000000000000000000a67e9b68c41b0f26184d64c26e0b2b81466e5994000000000000000000000000000000000000000000000000000000174876e8002ea0952b0468aff066f3e00a1d476b8894d84bfc47a1a3cdab9d6809a3461cc713e5a018219ee382aa3c7edf73a87bd8a75e2c40a97efbdf56a6cfd353af06fb74101d",
"mevProtection": true
}With mevProtection: true
{
"status": 200,
"msg": "success",
"data": {
"txHash": "0xd9cdf1483a85aa206625c66fea49059b96ffae1c086f76664cfa3f91a495d73a"
}
}Last updated