factstore

io.github.Victor-EU/factstore

A fact store for AI agents, on Postgres: registered attributes, every write citing its evidence.

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Connect this server

Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "factstore": {
      "command": "uvx",
      "args": [
        "factstore"
      ],
      "env": {
        "FACTSTORE_DSN": "<your FACTSTORE_DSN>",
        "FACTSTORE_EXCISE_DSN": "<your FACTSTORE_EXCISE_DSN>"
      }
    }
  }
}
Environment variables
  • FACTSTORE_DSNrequiredsecretThe credential `factstore actor STORE NAME` prints: a Postgres connection string for one actor of one store.
  • FACTSTORE_EXCISE_DSNsecretAn excision credential (`factstore actor --excise`). Only then is the excise tool listed.

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category
Developer Tools
Version
0.1.0
Registry
active
Published
10/4/2026

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Add the badge to your site

Show visitors that factstore is listed here — it’s also the link we check for a free listing.

factstore — listed on Serverdex

HTML — for your website

<a href="https://serverdex.io/server/io-github-victor-eu-factstore?utm_source=badge"><img src="https://serverdex.io/brand/badge.svg" alt="factstore — listed on Serverdex" width="123" height="40" loading="lazy"></a>

Recommended. A dofollow link from your own domain is the one that counts for search engines, and it's the link we check for a free listing.

Markdown — for your README

[![factstore — listed on Serverdex](https://serverdex.io/brand/badge.svg)](https://serverdex.io/server/io-github-victor-eu-factstore?utm_source=badge)

Nice for visibility, but GitHub marks README links nofollow, so it doesn't pass authority. Use the HTML badge on your site as well.