Meridian acts as an intermediary that translates Claude Code SDK calls to standard Anthropic or OpenAI API protocols. It allows AI coding assistants and agent frameworks like OpenCode, Aider, Cline, Crush, and Pi to connect to Claude Max without OAuth interception or binary patches. The tool handles session management, streaming, and prompt caching natively through the official SDK, ensuring proper context window management and rate limiting as designed by Anthropic.