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What is MCP (Model Context Protocol)?

The Model Context Protocol (MCP) is an open protocol that defines how AI agents (like Saiki agents) can discover, connect to, and interact with external tools, services, and APIs in a standardized way.

Why MCP Matters​

  • Interoperability: MCP provides a common language for agents and tools, making it easy to connect new services without custom integration code for each one.
  • Extensibility: Anyone can build and share MCP-compatible tools, expanding what agents can do.
  • Modularity: Tools are decoupled from the agent's core logic, so you can add, remove, or swap tools as needed.

How Saiki Agents Use MCP​

Saiki agents uses MCP to:

  • Discover available tools: MCP servers advertise what actions they support (e.g., read a file, send an email, browse the web).
  • Connect to tools: Saiki agents communicate with MCP servers using a standard protocol (often over stdio, HTTP, or sockets).
  • Invoke tool actions: When you give a command, Saiki selects the right tool(s) via MCP and orchestrates their use to fulfill your request.

Example: Registering a Tool via MCP​

Suppose you want to add a filesystem tool. In your Saiki agent configuration file, you might specify:

mcpServers:
  filesystem:
    type: stdio
    command: npx
    args:
      - -y
      - "@modelcontextprotocol/server-filesystem"
      - .

This tells your Saiki agent to connect to the filesystem MCP server, which then advertises its capabilities to the agent.

Learn More​

MCP is a key part of what makes Saiki flexible, extensible, and able to automate across a wide range of tools and services.