Odos contributed the following description of Odos cross-chain contracts:

This project provides a suite of smart contracts designed to facilitate seamless interaction between Odos and the Across Protocol. It enables cross-chain asset transfers and message passing by handling the necessary hook logic for initiating bridge transfers and handler logic for processing messages received from Across on a destination chain.

Zellic conducted a security assessment for Odos from June 17th to June 18th, 2025. During this engagement, Zellic reviewed Odos cross-chain contracts' code for security vulnerabilities, design issues, and general weaknesses in security posture.