CCIP v2.0.0 IOwner API Reference

IOwner defines a minimal interface for retrieving a contract’s owner address.

This interface is a read-only ownership hook that exposes the current owner without defining how ownership is transferred.

This interface is not specific to CCIP and may represent general contract ownership.

Use this interface when a contract needs to expose ownership information without implementing full ownership management logic.

This interface defines functions implemented by protocol contracts and is not typically used directly by applications.

Usage Boundary

You typically do not call this interface directly.

Registry and management components may query this interface to determine contract ownership.
You implement this interface when you need to expose a canonical owner address.
This interface exposes general contract ownership, not CCIP-specific administrative roles.
Use IOwnable if you need ownership transfer functionality.
You are responsible for ensuring the returned address reflects the correct owner.

interfaces/IOwner.sol

import {IOwner} from "chainlink-ccip/interfaces/IOwner.sol";

If you have not installed the package:

npm install @chainlink/contracts-ccip@2.0.0

function owner() external view returns (address)

Returns the address recognized as the owner of the contract.

Returns:

Type	Description
`address`	Address with ownership authority over the contract.

This interface does not define how ownership is transferred.
Implementations define the source of truth for ownership.
This interface assumes a single canonical owner address.
The owner address may represent an externally owned account or another contract (for example, a multisig).
Returning an incorrect address may expose administrative control to the wrong entity.
Use IGetCCIPAdmin when exposing a dedicated CCIP admin instead of general ownership.