network/list - Cardano

Example code for the network/list JSON-RPC method. Complete guide on how to use network/list JSON-RPC in GetBlock Web3 documentation.

This endpoint returns the network identifiers the Rosetta server supports. It is the first call a client makes to discover which networks are available.

Parameters

The request body is a JSON object with the following fields.

Field	Type	Required	Description
metadata	object	No	Optional metadata object, usually empty

Request

cURL

curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/network/list' \
--header 'Content-Type: application/json' \
--data-raw '{
    "metadata": {}
}'

JavaScript

example.js

const response = await fetch(
    'https://go.getblock.io/<ACCESS-TOKEN>/network/list',
    {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({"metadata": {}})
    }
);
console.log(await response.json());

Python

example.py

import requests

response = requests.post(
    'https://go.getblock.io/<ACCESS-TOKEN>/network/list',
    headers={'Content-Type': 'application/json'},
    json={"metadata": {}}
)

print(response.json())

Response

{
    "network_identifiers": [
        {
            "blockchain": "cardano",
            "network": "mainnet"
        }
    ]
}

Response Parameters

Field	Type	Description
network_identifiers	array	Supported networks, each with a blockchain and network name

Use Cases

• Discovery: Discover which networks the endpoint serves

• Configuration: Confirm the mainnet identifier before other calls

• Multi-Network Clients: Enumerate networks a client can target

• Health Checks: Confirm the Rosetta server is responding

Error Handling

Error Code	Message	Description
1	Invalid request	The request body is malformed or missing required fields
4	Block not found	The requested block does not exist on this node
5	Internal error	The node failed to answer the request