Trace call execution

POST

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

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Returns the number of possible tracing result by executing an eth call within the context of the given block execution

Body

application/json

Returns the number of possible tracing result by executing an eth call within the context of the given block execution

Request payload for Trace call execution.

jsonrpcstringrequired

JSON-RPC protocol version.

methodstringrequired

JSON-RPC method name.

paramsArray<object | string>required

JSON-RPC method parameters.

Show child attributes

Single JSON-RPC parameter value accepted by this method.

Any of

Single JSON-RPC parameter value accepted by this method.

object

Single JSON-RPC parameter value accepted by this method.

string

idintegerrequired

Client-provided request identifier echoed in the response.

Response

200OK

Call execution trace

400Bad Request

Bad Request

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

Trace call execution

curl -X POST 'https://eth-archive.nownodes.io/' \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "2.0",
    "method": "debug_traceCall",
    "params": [
      {
        "from": null,
        "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
        "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
      },
      "latest"
    ],
    "id": 1
  }'

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider("https://eth-archive.nownodes.io/");
const result = await provider.send("debug_traceCall", [
  {
    "from": null,
    "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
    "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
  },
  "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": "debug_traceCall",
  "params": [
    {
      "from": null,
      "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
      "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
    },
    "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("debug_traceCall", [
  {
    "from": None,
    "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
    "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
  },
  "latest"
])
print(response)

import { createPublicClient, http } from "viem";

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

const result = await client.request({
  method: "debug_traceCall",
  params: [
  {
    "from": null,
    "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
    "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
  },
  "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: "debug_traceCall", params: [
  {
    "from": null,
    "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
    "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
  },
  "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": "debug_traceCall",
      "params": [
        {
          "from": null,
          "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
          "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
        },
        "latest"
      ],
      "id": 1
    }),
});

const data = await response.json();

import requests

payload = {
  "jsonrpc": "2.0",
  "method": "debug_traceCall",
  "params": [
    {
      "from": None,
      "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
      "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
    },
    "latest"
  ],
  "id": 1
}

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": "debug_traceCall",
    "params": [
      {
        "from": null,
        "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
        "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
      },
      "latest"
    ],
    "id": 1
  }'

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": "debug_traceCall",
  "params": [
    {
      "from": null,
      "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
      "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
    },
    "latest"
  ],
  "id": 1
}

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "from": "0x0b6f2116323c12ee731de6818e41861561bcd44c",
    "gas": "0xffffffffffffffff",
    "gasUsed": "0x6e02",
    "to": "0xe28cac160c2a79dfa1fbd2169ac5fa5d061cf186",
    "input": "0x",
    "error": "execution reverted",
    "calls": [
      {
        "from": "0xe28cac160c2a79dfa1fbd2169ac5fa5d061cf186",
        "gas": "0xfbffffffffff941c",
        "gasUsed": "0x44",
        "to": "0x6cb28384f21b18924fa312aa2e10d4e813e66263",
        "input": "0x",
        "error": "execution reverted",
        "value": "0x0",
        "type": "DELEGATECALL"
      }
    ],
    "value": "0x0",
    "type": "CALL"
  }
}

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

Unknown API_key

Method Not Allowed

Missing API_key

Documentation

How to migrate to NOWNodes

Trace call execution

Authorizations

Body

Response