Address Type

The Address type is a composite object that identifies an account, its chain, and optionally an asset. It appears in every transfer and bridge request.

Fields

Field	Type	Required	Description
`account`	string	Yes	The wallet or contract address. For EIP chains this is a hex-encoded Ethereum address (`0x...`).
`chain`	string	Yes	CAIP-2 chain identifier (e.g. `eip155:1`).
`asset`	string	No	Token address or canonical symbol. If omitted, the top-level `asset` field in the request is used.

Example

{
  "account": "0x3165fd5B9D37Ac9619aC5895CA33F308aB02a053",
  "chain": "eip155:11155111",
  "asset": "USDC"
}

Why CAIP-10?

CAIP-10 bundles chain, account, and asset into one string. You pass one identifier instead of separate chainId and tokenAddress parameters, and the same shape works across EVM chains. The address only reveals what routing needs, so the broadcasting wallet stays decoupled from the asset source.