Stats Explorer MCP

A local MCP server providing 18 statistical and analytics tools for AI agents, including hypothesis tests (t-tests, ANOVA, chi-square), A/B testing analysis, and descriptive statistics. It reads CSV, TSV, Excel, or Parquet files directly, ensuring large datasets are not pasted into chat. Results include effect sizes, confidence intervals, and plain-English interpretations, with optional verification by Jev.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Community listingLocal stdioSource reviewed; not executedPublished by Meador793

Vendor documentation

What you can do with it

Perform A/B test analysis with lift intervals and sample ratio mismatch checks
Run hypothesis tests like t-tests, ANOVA, and chi-square on local data files
Generate descriptive statistics and confidence intervals for datasets
Identify top N categories and rankings across columns for exploratory analysis

Source and maintenance

Community listingRegistry 1.5.1

mcp-registry: io.github.Meador793/stats-explorer-mcp@1.5.1 Source repository Project website

Maintenance checked: Oct 31, 2026, 10:27 PM UTC

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

stats-explorer-mcp 1.5.1

npm

stats-explorer-mcp package definition

{
  "version": "1.5.1",
  "transport": "stdio",
  "identifier": "stats-explorer-mcp",
  "registryType": "npm",
  "environmentVariables": [
    {
      "name": "STATS_EXPLORER_ROOTS",
      "format": "string",
      "description": "Folders the tools may read data files from and write reports to (separated by : on macOS/Linux, ; on Windows). Defaults to the client's workspace roots, or the current directory."
    },
    {
      "name": "STATS_EXPLORER_STREAM_MB",
      "format": "number",
      "default": "512",
      "description": "CSV/TSV/Parquet files above this size (MB) are streamed in parallel passes; any size works. Default 512."
    },
    {
      "name": "STATS_EXPLORER_WORKERS",
      "format": "number",
      "description": "Parallel readers for large files. Default: all CPU cores but one (max 16)."
    },
    {
      "name": "STATS_EXPLORER_CACHE",
      "format": "string",
      "choices": [
        "ask",
        "on",
        "off"
      ],
      "default": "ask",
      "description": "Keep columns read from large files for fast follow-up questions: ask (default), on or off."
    },
    {
      "name": "STATS_EXPLORER_CACHE_DIR",
      "format": "string",
      "description": "Folder for saved large-file columns. Default: the system temp folder."
    },
    {
      "name": "STATS_EXPLORER_MAX_FILE_MB",
      "format": "number",
      "description": "Refuse data files larger than this (MB). Default: no limit."
    },
    {
      "name": "STATS_EXPLORER_GUIDED",
      "format": "string",
      "choices": [
        "on",
        "off"
      ],
      "default": "on",
      "description": "on (default): classify each request and follow the six-step workflow for hypothesis tests. off: expose the individual test tools directly."
    },
    {
      "name": "STATS_EXPLORER_CONFIRM_SELECTIONS",
      "format": "string",
      "choices": [
        "on",
        "off"
      ],
      "default": "on",
      "description": "on (default): the user confirms every column, chart type and report section before anything runs. off: run with the AI's choices."
    },
    {
      "name": "STATS_EXPLORER_CONFIRM_VIA",
      "format": "string",
      "choices": [
        "auto",
        "chat"
      ],
      "default": "auto",
      "description": "auto (default): forms where the client supports them. chat: always ask in the conversation (recommended for Claude Code)."
    },
    {
      "name": "STATS_EXPLORER_HIDE_LINK",
      "format": "string",
      "description": "Set to 1 to remove the one-line Stats Explorer app link from results."
    },
    {
      "name": "STATS_EXPLORER_JEV",
      "format": "string",
      "choices": [
        "off",
        "cooperate",
        "enforce",
        "orchestrated"
      ],
      "default": "off",
      "description": "Independent checks by Jev (TypeSafe): off (default), cooperate (the AI calls your Jev MCP server), enforce (Stats Explorer calls the Jev API) or orchestrated (signed decisions from an orchestrator)."
    },
    {
      "name": "STATS_EXPLORER_JEV_CHECKPOINTS",
      "format": "string",
      "default": "plan,conclusions",
      "description": "Comma list of plan, conclusions, data. Default plan,conclusions (data sends column names and text samples to Jev)."
    },
    {
      "name": "TYPESAFE_API_KEY",
      "format": "string",
      "description": "Enforce mode only: TypeSafe API key Stats Explorer uses to call Jev."
    },
    {
      "name": "STATS_EXPLORER_APPROVAL_SECRET",
      "format": "string",
      "description": "Orchestrated mode only: shared secret (32+ characters) the orchestrator signs decisions with."
    },
    {
      "name": "STATS_EXPLORER_AUDIT_LOG",
      "format": "string",
      "description": "Path of a JSON Lines file recording every Jev checkpoint decision."
    }
  ]
}

Tools

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No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

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Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "stats-explorer-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "stats-explorer-mcp@1.5.1"
      ],
      "env": {
        "STATS_EXPLORER_ROOTS": "<YOUR_STATS_EXPLORER_ROOTS>",
        "STATS_EXPLORER_STREAM_MB": "<YOUR_STATS_EXPLORER_STREAM_MB>",
        "STATS_EXPLORER_WORKERS": "<YOUR_STATS_EXPLORER_WORKERS>",
        "STATS_EXPLORER_CACHE": "<YOUR_STATS_EXPLORER_CACHE>",
        "STATS_EXPLORER_CACHE_DIR": "<YOUR_STATS_EXPLORER_CACHE_DIR>",
        "STATS_EXPLORER_MAX_FILE_MB": "<YOUR_STATS_EXPLORER_MAX_FILE_MB>",
        "STATS_EXPLORER_GUIDED": "<YOUR_STATS_EXPLORER_GUIDED>",
        "STATS_EXPLORER_CONFIRM_SELECTIONS": "<YOUR_STATS_EXPLORER_CONFIRM_SELECTIONS>",
        "STATS_EXPLORER_CONFIRM_VIA": "<YOUR_STATS_EXPLORER_CONFIRM_VIA>",
        "STATS_EXPLORER_HIDE_LINK": "<YOUR_STATS_EXPLORER_HIDE_LINK>",
        "STATS_EXPLORER_JEV": "<YOUR_STATS_EXPLORER_JEV>",
        "STATS_EXPLORER_JEV_CHECKPOINTS": "<YOUR_STATS_EXPLORER_JEV_CHECKPOINTS>",
        "TYPESAFE_API_KEY": "<YOUR_TYPESAFE_API_KEY>",
        "STATS_EXPLORER_APPROVAL_SECRET": "<YOUR_STATS_EXPLORER_APPROVAL_SECRET>",
        "STATS_EXPLORER_AUDIT_LOG": "<YOUR_STATS_EXPLORER_AUDIT_LOG>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "stats-explorer-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "stats-explorer-mcp@1.5.1"
      ],
      "env": {
        "STATS_EXPLORER_ROOTS": "<YOUR_STATS_EXPLORER_ROOTS>",
        "STATS_EXPLORER_STREAM_MB": "<YOUR_STATS_EXPLORER_STREAM_MB>",
        "STATS_EXPLORER_WORKERS": "<YOUR_STATS_EXPLORER_WORKERS>",
        "STATS_EXPLORER_CACHE": "<YOUR_STATS_EXPLORER_CACHE>",
        "STATS_EXPLORER_CACHE_DIR": "<YOUR_STATS_EXPLORER_CACHE_DIR>",
        "STATS_EXPLORER_MAX_FILE_MB": "<YOUR_STATS_EXPLORER_MAX_FILE_MB>",
        "STATS_EXPLORER_GUIDED": "<YOUR_STATS_EXPLORER_GUIDED>",
        "STATS_EXPLORER_CONFIRM_SELECTIONS": "<YOUR_STATS_EXPLORER_CONFIRM_SELECTIONS>",
        "STATS_EXPLORER_CONFIRM_VIA": "<YOUR_STATS_EXPLORER_CONFIRM_VIA>",
        "STATS_EXPLORER_HIDE_LINK": "<YOUR_STATS_EXPLORER_HIDE_LINK>",
        "STATS_EXPLORER_JEV": "<YOUR_STATS_EXPLORER_JEV>",
        "STATS_EXPLORER_JEV_CHECKPOINTS": "<YOUR_STATS_EXPLORER_JEV_CHECKPOINTS>",
        "TYPESAFE_API_KEY": "<YOUR_TYPESAFE_API_KEY>",
        "STATS_EXPLORER_APPROVAL_SECRET": "<YOUR_STATS_EXPLORER_APPROVAL_SECRET>",
        "STATS_EXPLORER_AUDIT_LOG": "<YOUR_STATS_EXPLORER_AUDIT_LOG>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "stats-explorer-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "stats-explorer-mcp@1.5.1"
      ],
      "env": {
        "STATS_EXPLORER_ROOTS": "<YOUR_STATS_EXPLORER_ROOTS>",
        "STATS_EXPLORER_STREAM_MB": "<YOUR_STATS_EXPLORER_STREAM_MB>",
        "STATS_EXPLORER_WORKERS": "<YOUR_STATS_EXPLORER_WORKERS>",
        "STATS_EXPLORER_CACHE": "<YOUR_STATS_EXPLORER_CACHE>",
        "STATS_EXPLORER_CACHE_DIR": "<YOUR_STATS_EXPLORER_CACHE_DIR>",
        "STATS_EXPLORER_MAX_FILE_MB": "<YOUR_STATS_EXPLORER_MAX_FILE_MB>",
        "STATS_EXPLORER_GUIDED": "<YOUR_STATS_EXPLORER_GUIDED>",
        "STATS_EXPLORER_CONFIRM_SELECTIONS": "<YOUR_STATS_EXPLORER_CONFIRM_SELECTIONS>",
        "STATS_EXPLORER_CONFIRM_VIA": "<YOUR_STATS_EXPLORER_CONFIRM_VIA>",
        "STATS_EXPLORER_HIDE_LINK": "<YOUR_STATS_EXPLORER_HIDE_LINK>",
        "STATS_EXPLORER_JEV": "<YOUR_STATS_EXPLORER_JEV>",
        "STATS_EXPLORER_JEV_CHECKPOINTS": "<YOUR_STATS_EXPLORER_JEV_CHECKPOINTS>",
        "TYPESAFE_API_KEY": "<YOUR_TYPESAFE_API_KEY>",
        "STATS_EXPLORER_APPROVAL_SECRET": "<YOUR_STATS_EXPLORER_APPROVAL_SECRET>",
        "STATS_EXPLORER_AUDIT_LOG": "<YOUR_STATS_EXPLORER_AUDIT_LOG>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "stats-explorer-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "stats-explorer-mcp@1.5.1"
      ],
      "env": {
        "STATS_EXPLORER_ROOTS": "<YOUR_STATS_EXPLORER_ROOTS>",
        "STATS_EXPLORER_STREAM_MB": "<YOUR_STATS_EXPLORER_STREAM_MB>",
        "STATS_EXPLORER_WORKERS": "<YOUR_STATS_EXPLORER_WORKERS>",
        "STATS_EXPLORER_CACHE": "<YOUR_STATS_EXPLORER_CACHE>",
        "STATS_EXPLORER_CACHE_DIR": "<YOUR_STATS_EXPLORER_CACHE_DIR>",
        "STATS_EXPLORER_MAX_FILE_MB": "<YOUR_STATS_EXPLORER_MAX_FILE_MB>",
        "STATS_EXPLORER_GUIDED": "<YOUR_STATS_EXPLORER_GUIDED>",
        "STATS_EXPLORER_CONFIRM_SELECTIONS": "<YOUR_STATS_EXPLORER_CONFIRM_SELECTIONS>",
        "STATS_EXPLORER_CONFIRM_VIA": "<YOUR_STATS_EXPLORER_CONFIRM_VIA>",
        "STATS_EXPLORER_HIDE_LINK": "<YOUR_STATS_EXPLORER_HIDE_LINK>",
        "STATS_EXPLORER_JEV": "<YOUR_STATS_EXPLORER_JEV>",
        "STATS_EXPLORER_JEV_CHECKPOINTS": "<YOUR_STATS_EXPLORER_JEV_CHECKPOINTS>",
        "TYPESAFE_API_KEY": "<YOUR_TYPESAFE_API_KEY>",
        "STATS_EXPLORER_APPROVAL_SECRET": "<YOUR_STATS_EXPLORER_APPROVAL_SECRET>",
        "STATS_EXPLORER_AUDIT_LOG": "<YOUR_STATS_EXPLORER_AUDIT_LOG>"
      }
    }
  }
}

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