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Datacron MCP Server

local only

Datacron runs on your own machine — the client starts it, so there is no endpoint to ping. 1 802 installs a week from pypi. Last commit 15 Sep 2026.

Local-first MCP server that exposes a Markdown vault through MCP.

Installs per day peak 967 · avg 177 · -34% w/w
a month agotoday
1 802
Installs / week
pypi · datacron
0
Stars
0 open issues
15 Sep 2026
Last commit
0 releases in 90 days
License
Python

What the code does

We read the source, 21 h ago · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

File ships in the package but is absent from the source [пакет] src/datacron/organization/library_cli.py:1
этот файл ставится пользователю, но в репозитории его нет
Runs an external command packaging/windows/build_installer.py:70
        completed = subprocess.run(  # noqa: S603
Builds a file path from a variable [пакет] src/datacron/mcp/tools/write.py:211, src/datacron/mcp/tools/write.py:210
    candidate = rel_path if os.path.isabs(rel_path) else os.path.join(root, rel_path)
Dumps the whole environment [пакет] src/datacron/eval/transport.py:62
    env = dict(os.environ)
In the project's build, not in the package

Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.

Builds a database query by concatenation .github/workflows/ci.yml:28
    name: Select validation scope
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.scope.outputs.matrix }}

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

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.

run in your terminal
claude mcp add datacron -- uvx datacron
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "datacron": {
      "args": [
        "datacron"
      ],
      "command": "uvx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.datacron]
command = "uvx"
args = ["datacron"]
.cursor/mcp.json
{
  "mcpServers": {
    "datacron": {
      "args": [
        "datacron"
      ],
      "command": "uvx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "datacron": {
      "args": [
        "datacron"
      ],
      "command": "uvx"
    }
  }
}

This one needs environment variables set before it will start: DATACRON_VAULT_ROOT (Absolute path to the Markdown vault the server indexes and serves.). The author declared them in the registry entry; get the values from the project itself.

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Datacron — questions

Answers built from our own checks of this server.

Why is there no uptime for Datacron?
Datacron 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 datacron was installed 1 802 times last week.
How do I connect Datacron?
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 datacron straight from pypi; nothing to host, nothing to sign up for.
How many people use Datacron?
The pypi package datacron was installed 1 802 times in the last week. Week over week that is -34%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Datacron open source?
We cannot say either way: written in Python and 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.