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Attestor

io.github.bolnet/attestor ยท v4.0.0

Self-hosted memory for agent teams. Bi-temporal replay, deterministic retrieval, audit log.

Source code Set it up

Connect Runs on your machine

Terminal
claude mcp add attestor -e ATTESTOR_PATH=<ATTESTOR_PATH> -e ATTESTOR_DISABLE_LOCAL_EMBED=<ATTESTOR_DISABLE_LOCAL_EMBED> -e OPENAI_API_KEY=<OPENAI_API_KEY> -e OPENROUTER_API_KEY=<OPENROUTER_API_KEY> -- uvx attestor==4.0.0
claude_desktop_config.json
{
  "mcpServers": {
    "attestor": {
      "command": "uvx",
      "args": [
        "attestor==4.0.0"
      ],
      "env": {
        "ATTESTOR_PATH": "<ATTESTOR_PATH>",
        "ATTESTOR_DISABLE_LOCAL_EMBED": "<ATTESTOR_DISABLE_LOCAL_EMBED>",
        "OPENAI_API_KEY": "<OPENAI_API_KEY>",
        "OPENROUTER_API_KEY": "<OPENROUTER_API_KEY>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "attestor": {
      "command": "uvx",
      "args": [
        "attestor==4.0.0"
      ],
      "env": {
        "ATTESTOR_PATH": "<ATTESTOR_PATH>",
        "ATTESTOR_DISABLE_LOCAL_EMBED": "<ATTESTOR_DISABLE_LOCAL_EMBED>",
        "OPENAI_API_KEY": "<OPENAI_API_KEY>",
        "OPENROUTER_API_KEY": "<OPENROUTER_API_KEY>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "attestor": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "attestor==4.0.0"
      ],
      "env": {
        "ATTESTOR_PATH": "<ATTESTOR_PATH>",
        "ATTESTOR_DISABLE_LOCAL_EMBED": "<ATTESTOR_DISABLE_LOCAL_EMBED>",
        "OPENAI_API_KEY": "<OPENAI_API_KEY>",
        "OPENROUTER_API_KEY": "<OPENROUTER_API_KEY>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

NameDescription
ATTESTOR_PATH
Optional		Directory containing attestor's config.toml. Defaults to ~/.attestor.
ATTESTOR_DISABLE_LOCAL_EMBED
Optional		Set to 1 to skip the local Ollama embedder probe (e.g., on hosts without Ollama). Defaults to unset (Ollama is the default embedder).
OPENAI_API_KEY
Optional, secret		OpenAI API key (used for the OpenAI text-embedding-3-large fallback embedder when Ollama is unavailable).
OPENROUTER_API_KEY
Optional, secret		OpenRouter API key (used for the federated LLM extraction / consolidation paths and for the LongMemEval benchmark runner).

Details

Package[email protected] (PYPI, stdio)
First published29 Apr 2026
Last updated29 Apr 2026
Registry nameio.github.bolnet/attestor

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