Hermes · MCP

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MCP, the Model Context Protocol, lets Hermes borrow tools that already exist instead of writing a native tool for every service. Point it at a server and Hermes auto-discovers the tools. Two kinds, both under mcp_servers in config.yaml: stdio (a local subprocess with command/args/env) and HTTP (a remote url + headers). Add via config or hermes mcp add --preset, restart, and the tools appear, prefixed mcp_<server>_<tool> so they never collide. Per-server filtering (include / exclude / enabled: false) doubles as a security control. It goes both ways too: hermes mcp serve turns Hermes into an MCP server other agents can use.