Cruxible Core MCP Server

by cruxible-ai Your server? Claim it

local only

Cruxible Core runs on your own machine — the client starts it, so there is no endpoint to ping. 83 installs a week from pypi. Last commit 6 Aug 2026.

Deterministic decision engine with receipts. Define rules in YAML, query a graph, get proof.

Installs per day peak 45 · avg 14 · -21% w/w

a month agotoday

Installs / week

pypi · cruxible-core

Stars

0 open issues

6 Aug 2026

Last commit

0 releases in 90 days

Apache-2.0

License

Python

Nothing serious here today

Today is the operative word: we check Cruxible Core every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add cruxible-core -- uvx cruxible-core

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "cruxible-core": {
      "args": [
        "cruxible-core"
      ],
      "command": "uvx"
    }
  }
}

~/.codex/config.toml

[mcp_servers.cruxible-core]
command = "uvx"
args = ["cruxible-core"]

.cursor/mcp.json

{
  "mcpServers": {
    "cruxible-core": {
      "args": [
        "cruxible-core"
      ],
      "command": "uvx"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "cruxible-core": {
      "args": [
        "cruxible-core"
      ],
      "command": "uvx"
    }
  }
}

This one needs environment variables set before it will start: CRUXIBLE_MODE (Permission mode: admin (default), graph_write, or read_only), CRUXIBLE_ALLOWED_ROOTS (Comma-separated absolute paths restricting which directories cruxible_init can access). The author declared them in the registry entry; get the values from the project itself.

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Cruxible Core — questions

Answers built from our own checks of this server.

Why is there no uptime for Cruxible Core?

Cruxible Core runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the pypi package cruxible-core was installed 83 times last week.

How do I connect Cruxible Core?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls cruxible-core straight from pypi; nothing to host, nothing to sign up for.

How many people use Cruxible Core?

The pypi package cruxible-core was installed 83 times in the last week. Week over week that is -21%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Cruxible Core open source?

Yes — it is published under the Apache-2.0 licence, written in Python and 17 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.