Verified statistics for AI agents: guided tests, A/B tests, Tukey HSD, reports, optional Jev checks.
To add Stats Explorer to Claude, run the install command below or copy the ready-made config for Claude Code, Claude Desktop, Cursor and VS Code further down. Restart your client after adding it and its tools show up in your next conversation. It needs 15 environment variables, listed below.
Install
npx -y stats-explorer-mcp@1.5.1Environment variables
STATS_EXPLORER_ROOTSSet in your MCP configSTATS_EXPLORER_STREAM_MBSet in your MCP configSTATS_EXPLORER_WORKERSSet in your MCP configSTATS_EXPLORER_CACHESet in your MCP configSTATS_EXPLORER_CACHE_DIRSet in your MCP configSTATS_EXPLORER_MAX_FILE_MBSet in your MCP configSTATS_EXPLORER_GUIDEDSet in your MCP configSTATS_EXPLORER_CONFIRM_SELECTIONSSet in your MCP configSTATS_EXPLORER_CONFIRM_VIASet in your MCP configSTATS_EXPLORER_HIDE_LINKSet in your MCP configSTATS_EXPLORER_JEVSet in your MCP configSTATS_EXPLORER_JEV_CHECKPOINTSSet in your MCP configTYPESAFE_API_KEYSet in your MCP configSTATS_EXPLORER_APPROVAL_SECRETSet in your MCP configSTATS_EXPLORER_AUDIT_LOGSet in your MCP configInstall with your client
claude mcp add stats-explorer --env STATS_EXPLORER_ROOTS=<YOUR_STATS_EXPLORER_ROOTS> --env STATS_EXPLORER_STREAM_MB=<YOUR_STATS_EXPLORER_STREAM_MB> --env STATS_EXPLORER_WORKERS=<YOUR_STATS_EXPLORER_WORKERS> --env STATS_EXPLORER_CACHE=<YOUR_STATS_EXPLORER_CACHE> --env STATS_EXPLORER_CACHE_DIR=<YOUR_STATS_EXPLORER_CACHE_DIR> --env STATS_EXPLORER_MAX_FILE_MB=<YOUR_STATS_EXPLORER_MAX_FILE_MB> --env STATS_EXPLORER_GUIDED=<YOUR_STATS_EXPLORER_GUIDED> --env STATS_EXPLORER_CONFIRM_SELECTIONS=<YOUR_STATS_EXPLORER_CONFIRM_SELECTIONS> --env STATS_EXPLORER_CONFIRM_VIA=<YOUR_STATS_EXPLORER_CONFIRM_VIA> --env STATS_EXPLORER_HIDE_LINK=<YOUR_STATS_EXPLORER_HIDE_LINK> --env STATS_EXPLORER_JEV=<YOUR_STATS_EXPLORER_JEV> --env STATS_EXPLORER_JEV_CHECKPOINTS=<YOUR_STATS_EXPLORER_JEV_CHECKPOINTS> --env TYPESAFE_API_KEY=<YOUR_TYPESAFE_API_KEY> --env STATS_EXPLORER_APPROVAL_SECRET=<YOUR_STATS_EXPLORER_APPROVAL_SECRET> --env STATS_EXPLORER_AUDIT_LOG=<YOUR_STATS_EXPLORER_AUDIT_LOG> -- npx -y stats-explorer-mcp@1.5.1
Run this in a terminal to add the server to Claude Code.
What this does
Stats Explorer exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.
Requirements
This server needs the following environment variables to be set before it can run:
STATS_EXPLORER_ROOTS STATS_EXPLORER_STREAM_MB STATS_EXPLORER_WORKERS STATS_EXPLORER_CACHE STATS_EXPLORER_CACHE_DIR STATS_EXPLORER_MAX_FILE_MB STATS_EXPLORER_GUIDED STATS_EXPLORER_CONFIRM_SELECTIONS STATS_EXPLORER_CONFIRM_VIA STATS_EXPLORER_HIDE_LINK STATS_EXPLORER_JEV STATS_EXPLORER_JEV_CHECKPOINTS TYPESAFE_API_KEY STATS_EXPLORER_APPROVAL_SECRET STATS_EXPLORER_AUDIT_LOG
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install Stats Explorer?
Run the Claude Code command in the install section to add Stats Explorer to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.
Which clients work with Stats Explorer?
This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to Stats Explorer as well.
Does Stats Explorer need an API key?
Yes. Before it can run, set these environment variables: STATS_EXPLORER_ROOTS, STATS_EXPLORER_STREAM_MB, STATS_EXPLORER_WORKERS, STATS_EXPLORER_CACHE, STATS_EXPLORER_CACHE_DIR, STATS_EXPLORER_MAX_FILE_MB, STATS_EXPLORER_GUIDED, STATS_EXPLORER_CONFIRM_SELECTIONS, STATS_EXPLORER_CONFIRM_VIA, STATS_EXPLORER_HIDE_LINK, STATS_EXPLORER_JEV, STATS_EXPLORER_JEV_CHECKPOINTS, TYPESAFE_API_KEY, STATS_EXPLORER_APPROVAL_SECRET, STATS_EXPLORER_AUDIT_LOG. They go in the env block of your MCP config.
Imported from the Official MCP Registry. The details above come from the registry entry; the maker can claim this listing to correct them, add docs, and see its traffic.
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