Agent Adapter

Agent Adapter is a new open-source agentic framework that runs your AI agent tools anywhere, safely. Write a tool once as a plain function and use it in LangChain, CrewAI, Google ADK, OpenAI Agents and 16 more, or call it from TypeScript, Java, C#, Go and 5 more languages. One executor adds approvals, budgets, cost and traces to every call. Works in your AI IDE: one command adds the skill to Claude Code, Cursor, Codex, Copilot and 60+ coding agents. Free, Apache-2.0.