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GET
/
chains
/
supported-list
List supported chains
curl --request GET \
  --url https://be.onebalance.io/api/chains/supported-list \
  --header 'x-api-key: <api-key>'
[
  {
    "chain": {
      "chain": "eip155:42161",
      "namespace": "eip155",
      "reference": "42161"
    },
    "isTestnet": false
  },
  {
    "chain": {
      "chain": "eip155:8453",
      "namespace": "eip155",
      "reference": "8453"
    },
    "isTestnet": false
  },
  {
    "chain": {
      "chain": "eip155:10",
      "namespace": "eip155",
      "reference": "10"
    },
    "isTestnet": false
  },
  {
    "chain": {
      "chain": "eip155:137",
      "namespace": "eip155",
      "reference": "137"
    },
    "isTestnet": false
  },
  {
    "chain": {
      "chain": "eip155:59144",
      "namespace": "eip155",
      "reference": "59144"
    },
    "isTestnet": false
  },
  {
    "chain": {
      "chain": "eip155:43114",
      "namespace": "eip155",
      "reference": "43114"
    },
    "isTestnet": false
  },
  {
    "chain": {
      "chain": "eip155:1",
      "namespace": "eip155",
      "reference": "1"
    },
    "isTestnet": false
  }
]

Documentation Index

Fetch the complete documentation index at: https://docs.onebalance.io/llms.txt

Use this file to discover all available pages before exploring further.

Authorizations

​
x-api-key
string
header
required

The OneBalance API uses API keys to authenticate requests. All API requests require authentication using an API key passed in the x-api-key header:

curl -X 'GET' \
  'https://be.onebalance.io/api/path-to/endpoint' \
  -H 'x-api-key: ${ONEBALANCE_API_KEY}' \
  ...

A public API key is available for testing purposes with limited usage: 42bb629272001ee1163ca0dbbbc07bcbb0ef57a57baf16c4b1d4672db4562c11.

All API requests must be made over HTTPS. Calls made over plain HTTP will fail. API requests without authentication will also fail.

Learn how to generate API access tokens at OneBalance Docs.

Response

The list of supported chains

​
chain
object
required

The chain entity representing the blockchain network

Example:
{
  "chain": "eip155:42161",
  "namespace": "eip155",
  "reference": "42161"
}
​
isTestnet
boolean
required

Indicates whether the chain is a testnet

Example:

false

Last modified on August 11, 2025