An MCP server that exposes Z.ai's GLM models — GLM-5.3 and siblings — as tools inside Claude Code and Claude Desktop. Claude Desktop pins its own model provider: when it spawns its embedded Claude Code it forces `ANTHROPIC_BASE_URL` to Anthropic's endpoint and strips `ANTHROPIC_API_KEY` / `ANTHROPIC_AUTH_TOKEN` from the child environment. So GLM cannot *drive* a desktop session.