Attestor MCP Server

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

People who work with memory, neo4j and pgvector and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

VERIFIED ACTIVE

LAST COMMIT 2026-05-30 · ★ 14 · #232 OF 304 MAINTAINED MEMORY · VERIFIED 2026-09-18

MIT · Python servers · how we verify → /methodology

01 · Install Attestor

Claude Code

claude mcp add bolnet-attestor -- uvx attestor

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "bolnet-attestor": {
      "command": "uvx",
      "args": [
        "attestor"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

pypi package attestor - check the name against the project README before installing (PyPI has no namespace ownership)

registry namespace io.github.bolnet is GitHub-verified and matches the repo owner

03 · What Attestor can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v4.1.11 · 2026-05-26

Adds attestor recall --show-tokens: prints the packed token count of the recall payload so per-call recall size is visible (flat regardless of conversation length). Ships alongside the 4.1.10 uncapped budget.

v4.1.10 · 2026-05-26

Reverses the 2048 cap (4.1.9): recall budget set to 1,000,000 (effectively uncapped; still bounded by vector_top_k) so we observe real token usage before tuning. Applied to MCP default, CLI --budget, init config…

v4.1.8 · 2026-05-26

Every Docker container, volume, network, and the compose project is now named attestor_… - so docker ps -a | grep attestor, docker volume ls | grep attestor, and docker network ls | grep attestor list everything…

04 · Who maintains Attestor

Attestor is maintained by bolnet. We track 2 MCP servers from bolnet - 2 actively maintained, 28 combined GitHub stars, oldest repo from Mar 2026. Full record: all servers from bolnet.

memwright Embedded memory for AI agents with SQLite, pgvector, and Neo4j graph search. ★ 14

05 · Facts

repository: github.com/bolnet/attestor
category: memory - ranked #232 of 304 actively-maintained memory servers as of 2026-09-18.
registry: io.github.bolnet/attestor (active, first published 2026-04-27 · 4 versions)
packages: pypi:attestor

06 · Attestor FAQ

What is Attestor?

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

Is Attestor still maintained?

Yes - as of 2026-09-18, its last commit was 2026-05-30. We re-verify nightly.

How do I install Attestor?

Run `uvx attestor`. You can also paste the ready-made client config above.

Does Attestor run locally?

Yes - it's a stdio server: it runs on your machine (via uvx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Attestor

Alternatives to Attestor

Maintained memory servers if Attestor isn't the fit.

Pairs well with

Servers that cover what Attestor doesn't - only shown when the pairing reason fits the companion.

More memory MCP servers · hmem - Humanlike Memory for AI Agents · Excalidraw Architect · Soulsketch · Memoir · Openchronicle MCP

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