Hermes Prime MCP Server

io.github.hermes-labs-ai/hermes-prime

Repository Registry

What is the Hermes Prime MCP server?

Read-only stdio MCP server for a versioned convention card in Claude Code.

How to install Hermes Prime

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

HERMES_PRIME_FRAGMENT_ROOT
Directory containing a trusted custom CLAUDE-fragment.md (default: the versioned card bundled with the installed package).

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "hermes-prime": {
      "command": "uvx",
      "args": [
        "hermes-prime-mcp",
        "--from",
        "hermes-prime-mcp",
        "hermes-prime-mcp"
      ],
      "env": {
        "HERMES_PRIME_FRAGMENT_ROOT": "<YOUR_HERMES_PRIME_FRAGMENT_ROOT>"
      }
    }
  }
}

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