Agent Client Protocol

A standardized communication interface designed to unify how AI agents interact with local tools and remote services.

The Agent Client Protocol (ACP) solves the fragmentation in agentic workflows by providing a consistent transport layer for tool execution. It eliminates the need for custom integration glue between frameworks like LangChain or AutoGPT and their underlying environments. By utilizing JSON-RPC over standard streams or HTTP, ACP allows developers to swap models and client interfaces without rewriting core logic. This protocol ensures that whether an agent is accessing a local filesystem or a 3rd-party API, the handshake remains identical: predictable, low-latency, and strictly typed.

https://github.com/mcp-hub/agent-client-protocol