SERVER

factstore

Rank #27,320

io.github.Victor-EU/factstore

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

1 version

by Victor-EU (2 servers)View repository ↗

Listed & last published

Oct 4, 2026

PURPOSE

What you can do with factstore

factstore is a Model Context Protocol (MCP) server published by Victor-EU. It ranks #27,320 of 150,963 active servers on MCP Toplist. factstore is listed on Official MCP, with 1 tracked version. It was first listed on Oct 4, 2026 and most recently updated on Oct 4, 2026.

Not verifiedMCP Toplist has not yet written a checked profile for this server, so the paragraph above is assembled from registry data only. The repository README is the authority on what it does.

CAPABILITIES AND LIMITATIONS

What factstore can and cannot do

Not verifiedMCP Toplist has not catalogued this server's tools or limitations. The repository README lists them.

REQUIREMENTS

What you need before using factstore

DeclaredAPI keyCredentials declared

The registry listing declares required configuration before first use — typically an API key, token or connection string set via environment variables.

Declared by the Official MCP Registry, last synced Oct 22, 2026. Not independently verified by MCP Toplist.

Declared in the registry install config

FACTSTORE_DSN · required
FACTSTORE_EXCISE_DSN · optional

INSTALLATION AND FIRST TASK

Connect factstore and confirm it works

Python package (PyPI)

claude mcp add factstore -e "FACTSTORE_DSN=<your FACTSTORE_DSN>" -e "FACTSTORE_EXCISE_DSN=<your FACTSTORE_EXCISE_DSN>" -- uvx factstore mcp

Replace each placeholder with your own value before saving.

Python package (PyPI)

[mcp_servers.factstore]
command = "uvx"
args = ["factstore", "mcp"]

[mcp_servers.factstore.env]
FACTSTORE_DSN = "<your FACTSTORE_DSN>"
FACTSTORE_EXCISE_DSN = "<your FACTSTORE_EXCISE_DSN>"

Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.

Python package (PyPI)

{
  "mcpServers": {
    "factstore": {
      "command": "uvx",
      "args": [
        "factstore",
        "mcp"
      ],
      "env": {
        "FACTSTORE_DSN": "<your FACTSTORE_DSN>",
        "FACTSTORE_EXCISE_DSN": "<your FACTSTORE_EXCISE_DSN>"
      }
    }
  }
}

Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.

Python package (PyPI)

{
  "mcpServers": {
    "factstore": {
      "command": "uvx",
      "args": [
        "factstore",
        "mcp"
      ],
      "env": {
        "FACTSTORE_DSN": "<your FACTSTORE_DSN>",
        "FACTSTORE_EXCISE_DSN": "<your FACTSTORE_EXCISE_DSN>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.

Python package (PyPI)

{
  "servers": {
    "factstore": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "factstore",
        "mcp"
      ],
      "env": {
        "FACTSTORE_DSN": "<your FACTSTORE_DSN>",
        "FACTSTORE_EXCISE_DSN": "<your FACTSTORE_EXCISE_DSN>"
      }
    }
  }
}

Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.

Python package (PyPI)

{
  "mcpServers": {
    "factstore": {
      "command": "uvx",
      "args": [
        "factstore",
        "mcp"
      ],
      "env": {
        "FACTSTORE_DSN": "<your FACTSTORE_DSN>",
        "FACTSTORE_EXCISE_DSN": "<your FACTSTORE_EXCISE_DSN>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.

Python package (PyPI)

{
  "mcpServers": {
    "factstore": {
      "command": "uvx",
      "args": [
        "factstore",
        "mcp"
      ],
      "env": {
        "FACTSTORE_DSN": "<your FACTSTORE_DSN>",
        "FACTSTORE_EXCISE_DSN": "<your FACTSTORE_EXCISE_DSN>"
      }
    }
  }
}

Replace each placeholder with your own value before saving.

First successful task

After adding the config, ask your client to list this server's tools. A tool list confirms the connection; an empty list or an error means the server did not start or needs credentials.

ALTERNATIVES

When to choose another server

Other servers by Victor-EU

Deploy#1,650

View all Victor-EU servers →

No task-specific alternatives are catalogued for factstoreyet; the list above is its publisher's other servers.

MAINTENANCE AND EVIDENCE

What changed, and when this was checked

First listed: Oct 4, 2026
Latest version published: Oct 4, 2026
Version history: 1 version tracked (below)
Requirements evidence: Declared by the Official MCP Registry, last synced Oct 22, 2026. Not independently verified by MCP Toplist.
Profile checked: Not yet — purpose, capabilities and requirements above come from registry data only
Ranking data as of: Oct 4, 2026

Registry sightings

Official MCP ↗listed since Oct 5, 2026 · still listed

Do you maintain factstore? to correct or enrich this profile.

VERSIONS

Available versions (1)

Version	Published
0.1.0	Oct 4, 2026

STANDING

#27,320of 150,963 active serversTop 25%

Ranks ahead of 123,643 of 150,963 servers on MCP Toplist.

BADGE

Show your rank

Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.

Markdown

[![MCP Toplist](https://mcptoplist.com/badge/io.github.Victor-EU%2Ffactstore.svg)](https://mcptoplist.com/server/io.github.Victor-EU%2Ffactstore)

HTML

<a href="https://mcptoplist.com/server/io.github.Victor-EU%2Ffactstore"><img src="https://mcptoplist.com/badge/io.github.Victor-EU%2Ffactstore.svg" alt="MCP Toplist: Top 25% of 150,963" /></a>

Variants: append ?metric=score or ?metric=stars to the image URL.

FAQ

Frequently asked questions

Who maintains factstore?: factstore is maintained by Victor-EU, which publishes 2 MCP servers (4 total versions) tracked on MCP Toplist.
Is factstore listed on the Official MCP Registry?: Yes — factstore is listed on the Official MCP Registry.
How many versions does factstore have?: MCP Toplist tracks 1 version of factstore, most recently published on Oct 4, 2026.
Where can I find the source code for factstore?: The source code for factstore is hosted at github.com/Victor-EU/factstore.

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