# CCIP v1.6.0 Aptos API Reference
Source: https://docs.chain.link/ccip/api-reference/aptos/v1.6.0


> **NOTE**
>
> You are viewing API documentation for CCIP v1.6.0 on Aptos blockchain, which is the latest version for Aptos
> integration.

## API References

### Core Components

- [Messages](/ccip/api-reference/aptos/v1.6.0/messages) - Message structures and extra args for cross-chain messaging
- [Router](/ccip/api-reference/aptos/v1.6.0/router) - Functions for sending messages through CCIP on Aptos
- [Receiver](/ccip/api-reference/aptos/v1.6.0/receiver) - Functions for receiving and processing CCIP messages on Aptos
- [Client](/ccip/api-reference/aptos/v1.6.0/client) - Helper functions for interacting with CCIP on Aptos
- [Events](/ccip/api-reference/aptos/v1.6.0/events) - Event emissions for tracking cross-chain messages

### Error Handling

- [Errors](/ccip/api-reference/aptos/v1.6.0/errors) - Comprehensive list of CCIP error codes for the Aptos blockchain