Fidelis

Name: Fidelis
Author: Hermes Labs

Hermes Labs

Local-first agent memory for Claude Code and other agents, using BM25, dense vectors and rank fusion without an LLM; returns original passages.

Setup

Choose your client, copy the config, then fill in any required environment variables.

claude mcp add fidelis -- uvx fidelis-memory

~/.codex/config.toml

[mcp_servers.fidelis]
command = "uvx"
args = ["fidelis-memory"]

# codex mcp add fidelis -- uvx fidelis-memory

~/.cursor/mcp.json

{
  "mcpServers": {
    "fidelis": {
      "command": "uvx",
      "args": [
        "fidelis-memory"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "fidelis": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "fidelis-memory"
      ]
    }
  }
}

~/.gemini/settings.json

{
  "mcpServers": {
    "fidelis": {
      "command": "uvx",
      "args": [
        "fidelis-memory"
      ]
    }
  }
}

claude_desktop_config.json

{
  "mcpServers": {
    "fidelis": {
      "command": "uvx",
      "args": [
        "fidelis-memory"
      ]
    }
  }
}

.trae/mcp.json

{
  "mcpServers": {
    "fidelis": {
      "command": "uvx",
      "args": [
        "fidelis-memory"
      ]
    }
  }
}