Build effective agents with Model Context Protocol using simple, composable patterns.

mcp-agent is a simple, composable framework to build agents using Model Context Protocol.

We believe that MCP is all you need to build agents. In practice, that means:

• Agents connect to the outside world via MCP. Tools, resources, and prompts are exposed via MCP servers, leading to simple agent design.
• Agents expose themselves over MCP. Agents themselves can be deployed as MCP servers, so any MCP client can invoke your agent, and agents can even invoke other agents over the same vendor-neutral protocol.

Inspired by Anthropic’s foundational Model Context Protocol, which standardizes how software interfaces with AI assistants, and the influential guide “Building Effective Agents,” which outlines practical patterns for agent development.