Chains API

Access supported blockchain networks and contract information.

List Chains


GET /api/chains

Returns all supported blockchain networks.

Query Parameters

Parameter	Type	Description
`includeDisabled`	boolean	Include disabled chains (default: false)

Response


{
  "data": [
    {
      "id": "chain_1",
      "chainId": 1,
      "name": "Ethereum Mainnet",
      "symbol": "ETH",
      "chainType": "evm",
      "defaultPrimaryRpc": "https://...",
      "defaultFallbackRpc": "https://...",
      "explorerUrl": "https://etherscan.io",
      "explorerApiUrl": "https://api.etherscan.io",
      "isTestnet": false,
      "isEnabled": true
    },
    {
      "id": "chain_2",
      "chainId": 11155111,
      "name": "Sepolia",
      "symbol": "ETH",
      "chainType": "evm",
      "isTestnet": true,
      "isEnabled": true
    }
  ]
}

Chain Types

Type	Description
`evm`	Ethereum Virtual Machine compatible
`solana`	Solana network

Fetch Contract ABI


GET /api/chains/{chainId}/abi?address={contractAddress}

Fetches the ABI for a verified contract from the block explorer.

Query Parameters

Parameter	Type	Description
`address`	string	Contract address (required)

Response


{
  "abi": [
    {
      "type": "function",
      "name": "balanceOf",
      "inputs": [{"name": "account", "type": "address"}],
      "outputs": [{"name": "", "type": "uint256"}]
    }
  ]
}

Alternative ABI Fetch


GET /api/web3/fetch-abi?address={address}&chainId={chainId}

Alternative endpoint for fetching contract ABIs.