Key MCP Server

MCP server for key driver and feature importance analysis based on rule mining

Local serverstdioPython

What is the Key MCP server?

MCP server for key driver and feature importance analysis based on rule mining. Exposed over MCP by the key mcp server, that capability becomes something an assistant can invoke while it works, not something you go and do afterwards.

What it actually does

MCP server for key driver and feature importance analysis. Load any CSV dataset and ask what drives an outcome — survival, credit default, diagnosis, income — and get a ranked breakdown with sub-driver analysis showing not just which factors matter, but how they combine to amplify or completely reverse each other.

Adding it to your client

The server ships on PyPI as key-drivers-mcp, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.

Its toolset

Everything the assistant can do here goes through one of these:

  • load_dataset — Load a CSV file into session memory
  • list_datasets — List all loaded datasets
  • find_drivers — Find key drivers of a target outcome
  • explain_segment — Driver analysis conditioned on a segment variable (CLARA)

Configuration

  • Python 3.11+ - araxai >= 0.3.0 - mcp[cli] >= 1.0.0

Caveats

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • MCP clients confirm each tool call by default. Leave that on until you have watched what the key mcp server does with a few real requests.

When to reach for it

This sits in the knowledge and memory group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. Key's toolset — load_dataset, list_datasets, find_drivers and 1 more — is a fair guide to whether it matches your workflow.

We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.

Available tools

ToolWhat it does
load_datasetLoad a CSV file into session memory
list_datasetsList all loaded datasets
find_driversFind key drivers of a target outcome
explain_segmentDriver analysis conditioned on a segment variable (CLARA)

How to install the Key MCP server

{
  "mcpServers": {
    "key-drivers": {
      "type": "stdio",
      "command": "uvx",
      "args": ["key-drivers-mcp"]
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Configuration

  • Python 3.11+ - araxai >= 0.3.0 - mcp[cli] >= 1.0.0

Example prompts to try

  • Use Key to load dataset.
  • Use Key to list datasets.
  • Use Key to find drivers.

Frequently asked questions

It connects Key to MCP-compatible AI assistants such as Claude and Cursor, exposing 4 tools (load_dataset, list_datasets, find_drivers, and more) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Key directly.