alchemy_simulateExecutionBundle

POST

/{apiKey}

Simulates multiple transactions sequentially and returns decoded execution traces and logs.

Path Parameters

stringrequireddefaults to docs-demo

For higher throughput, create your own API key

Request

object[]required

An array of 1–2 transaction objects to run in sequence.

Responses

200

The decoded execution traces and logs from simulating multiple transactions in a bundle.

POST/v2/{apiKey}

curl --request POST \  --url https://eth-mainnet.g.alchemy.com/v2/docs-demo \  --header 'Content-Type: application/json' \  --data '{  "jsonrpc": "2.0",  "id": 1,  "method": "alchemy_simulateExecutionBundle",  "params": [    [      {        "from": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",        "to": "0x68b3465833fb72a70ecdf485e0e4c7bd8665fc45",        "data": "0x5ae401dc00000000000000000000000000000000000000000000000000000000634ef02f0000000000000000000000000000000000000000000000000000000000000000"      },      {        "from": "0x48da0965ab2d2cbf1c17c09cfb5cbe67ad5b1406",        "to": "0x6b175474e89094c44da98b954eedeac495271d0f",        "data": "0xa9059cbb0000000000000000000000000dd7eef07982749410eceaa721cdc8ff3167fc9b0000000000000000000000000000000000000000000000000de0b6b3a7640000"      }    ]  ]}'

200Success

{  "jsonrpc": "2.0",  "id": 1,  "result": {    "calls": [      {        "type": "CALL",        "from": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",        "to": "0x68b3465833fb72a70ecdf485e0e4c7bd8665fc45",        "value": "0x0",        "gas": "0x80000000000000c0",        "gasUsed": "0x55a0",        "input": "0xa9059cbb0000000000000000000000000dd7eef07982749410eceaa721cdc8ff3167fc9b0000000000000000000000000000000000000000000000000de0b6b3a7640000",        "error": "execution reverted"      },      {        "type": "CALL",        "from": "0x48da0965ab2d2cbf1c17c09cfb5cbe67ad5b1406",        "to": "0x6b175474e89094c44da98b954eedeac495271d0f",        "value": "0x0",        "gas": "0x80000000000000c0",        "gasUsed": "0x8792",        "input": "0xa9059cbb0000000000000000000000000dd7eef07982749410eceaa721cdc8ff3167fc9b0000000000000000000000000000000000000000000000000de0b6b3a7640000",        "output": "0x0000000000000000000000000000000000000000000000000000000000000001"      }    ],    "logs": [      {        "address": "0x6b175474e89094c44da98b954eedeac495271d0f",        "data": "0x0000000000000000000000000000000000000000000000000de0b6b3a7640000",        "topics": [          "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",          "0x48da0965ab2d2cbf1c17c09cfb5cbe67ad5b1406",          "0xdd7eef07982749410eceaa721cdc8ff3167fc9b"        ]      }    ],    "error": null,    "revertReason": null  }}

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