Execute multiple call traces

POST

https://eth-archive.nownodes.io/

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

The trace_callMany method allows executing multiple call operations in a single request and returns the full trace of each call execution. This is useful for debugging and analyzing multiple transaction calls.

Body

application/json

Request payload for Execute multiple call traces.

jsonrpcstringrequired

JSON-RPC protocol version.

methodstringrequired

JSON-RPC method name.

paramsArray<any>required

Method parameters. params[0] is an array of call sets. Each call set is an array of call items. A call item is a 2-element array: [callObject, traceTypes]. params[1] is the block tag.

idintegerrequired

Client-provided request identifier.

Response

200OK

Response returned by trace_callMany.

400Bad Request

Invalid request parameters

401Unauthorized

Unauthorized: API key is present but rejected by the NOWNodes gateway.

405Method Not Allowed

Method Not Allowed. Returned by the NOWNodes gateway for malformed or unsupported gateway-level requests.

422Unprocessable Entity

Missing API key. The NOWNodes gateway returns plain text for this error.

500Internal Server Error

Internal server error

Execute multiple call traces

curl -X POST 'https://eth-archive.nownodes.io/' \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "2.0",
    "method": "trace_callMany",
    "params": [
      [
        [
          [
            {
              "from": "0x0000000000000000000000000000000000000000",
              "to": "0x742d35Cc6634C0532925a3b844Bc454e4438f44e",
              "value": "0x0"
            }
          ],
          [
            "trace"
          ]
        ]
      ],
      "latest"
    ],
    "id": 11
  }'

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider("https://eth-archive.nownodes.io/");
const result = await provider.send("trace_callMany", [
  [
    [
      [
        {
          "from": "0x0000000000000000000000000000000000000000",
          "to": "0x742d35Cc6634C0532925a3b844Bc454e4438f44e",
          "value": "0x0"
        }
      ],
      [
        "trace"
      ]
    ]
  ],
  "latest"
]);
console.log(result);

require 'eth'
require 'json'
require 'net/http'

uri = URI('https://eth-archive.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
  "jsonrpc": "2.0",
  "method": "trace_callMany",
  "params": [
    [
      [
        [
          {
            "from": "0x0000000000000000000000000000000000000000",
            "to": "0x742d35Cc6634C0532925a3b844Bc454e4438f44e",
            "value": "0x0"
          }
        ],
        [
          "trace"
        ]
      ]
    ],
    "latest"
  ],
  "id": 1
}'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
  http.request(request)
end

puts JSON.parse(response.body)

from web3 import Web3

w3 = Web3(Web3.HTTPProvider("https://eth-archive.nownodes.io/"))
response = w3.provider.make_request("trace_callMany", [
  [
    [
      [
        {
          "from": "0x0000000000000000000000000000000000000000",
          "to": "0x742d35Cc6634C0532925a3b844Bc454e4438f44e",
          "value": "0x0"
        }
      ],
      [
        "trace"
      ]
    ]
  ],
  "latest"
])
print(response)

import { createPublicClient, http } from "viem";

const client = createPublicClient({
  transport: http("https://eth-archive.nownodes.io/"),
});

const result = await client.request({
  method: "trace_callMany",
  params: [
  [
    [
      [
        {
          "from": "0x0000000000000000000000000000000000000000",
          "to": "0x742d35Cc6634C0532925a3b844Bc454e4438f44e",
          "value": "0x0"
        }
      ],
      [
        "trace"
      ]
    ]
  ],
  "latest"
],
});

console.log(result);

const endpoint = "https://eth-archive.nownodes.io/";
const apiKey = "YOUR_API_KEY";

async function nownodesRequest(payload) {
  const response = await fetch(endpoint, {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
      "api-key": apiKey,
    },
    body: JSON.stringify(payload),
  });

  return response.json();
}

const result = await nownodesRequest({ jsonrpc: "2.0", method: "trace_callMany", params: [
  [
    [
      [
        {
          "from": "0x0000000000000000000000000000000000000000",
          "to": "0x742d35Cc6634C0532925a3b844Bc454e4438f44e",
          "value": "0x0"
        }
      ],
      [
        "trace"
      ]
    ]
  ],
  "latest"
], id: 1 });
console.log(result);

const response = await fetch('https://eth-archive.nownodes.io/', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "jsonrpc": "2.0",
      "method": "trace_callMany",
      "params": [
        [
          [
            [
              {
                "from": "0x0000000000000000000000000000000000000000",
                "to": "0x742d35Cc6634C0532925a3b844Bc454e4438f44e",
                "value": "0x0"
              }
            ],
            [
              "trace"
            ]
          ]
        ],
        "latest"
      ],
      "id": 11
    }),
});

const data = await response.json();

import requests

payload = {
  "jsonrpc": "2.0",
  "method": "trace_callMany",
  "params": [
    [
      [
        [
          {
            "from": "0x0000000000000000000000000000000000000000",
            "to": "0x742d35Cc6634C0532925a3b844Bc454e4438f44e",
            "value": "0x0"
          }
        ],
        [
          "trace"
        ]
      ]
    ],
    "latest"
  ],
  "id": 11
}

response = requests.post('https://eth-archive.nownodes.io/', json=payload)
data = response.json()

require 'net/http'
require 'json'

uri = URI('https://eth-archive.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "jsonrpc": "2.0",
    "method": "trace_callMany",
    "params": [
      [
        [
          [
            {
              "from": "0x0000000000000000000000000000000000000000",
              "to": "0x742d35Cc6634C0532925a3b844Bc454e4438f44e",
              "value": "0x0"
            }
          ],
          [
            "trace"
          ]
        ]
      ],
      "latest"
    ],
    "id": 11
  }'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |http| http.request(request) }
data = JSON.parse(response.body)

Request Body

{
  "jsonrpc": "2.0",
  "method": "trace_callMany",
  "params": [
    [
      [
        [
          {
            "from": "0x0000000000000000000000000000000000000000",
            "to": "0x742d35Cc6634C0532925a3b844Bc454e4438f44e",
            "value": "0x0"
          }
        ],
        [
          "trace"
        ]
      ]
    ],
    "latest"
  ],
  "id": 11
}

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": [
    {
      "output": "0x",
      "stateDiff": null,
      "trace": [
        {
          "type": "call",
          "action": {
            "from": "0x0b6f2116323c12ee731de6818e41861561bcd44c",
            "callType": "call",
            "gas": "0xffffffffffffadf7",
            "input": "0x",
            "to": "0xe28cac160c2a79dfa1fbd2169ac5fa5d061cf186",
            "value": "0x0"
          },
          "error": "Reverted",
          "result": {
            "gasUsed": "0x1bfa",
            "output": "0x"
          },
          "subtraces": 1,
          "traceAddress": []
        },
        {
          "type": "call",
          "action": {
            "from": "0xe28cac160c2a79dfa1fbd2169ac5fa5d061cf186",
            "callType": "delegatecall",
            "gas": "0xfbffffffffff941c",
            "input": "0x",
            "to": "0x6cb28384f21b18924fa312aa2e10d4e813e66263",
            "value": "0x0"
          },
          "error": "Reverted",
          "result": {
            "gasUsed": "0x44",
            "output": "0x"
          },
          "subtraces": 0,
          "traceAddress": [
            0
          ]
        }
      ],
      "vmTrace": null
    }
  ]
}

{
  "jsonrpc": "2.0",
  "id": 1,
  "error": {
    "code": -32602,
    "message": "Invalid params",
    "data": "invalid type: string \"not-a-valid-param\", expected a sequence at line 1 column 19"
  }
}

{
  "jsonrpc": "2.0",
  "id": 11,
  "error": {
    "code": -32602,
    "message": "Invalid params",
    "data": "Missing required field 'from'"
  }
}

Unknown API_key

Method Not Allowed

Missing API_key

{
  "jsonrpc": "2.0",
  "id": 11,
  "error": {
    "code": -32000,
    "message": "Execution error",
    "data": "out of gas"
  }
}

Documentation

How to migrate to NOWNodes

Execute multiple call traces

Authorizations

Body

Response