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To add mcp-rule34 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 4 environment variables, listed below.
Install
npx -y mcp-rule34@2.1.0Environment variables
RULE34_USER_IDSet in your MCP configRULE34_API_KEYSet in your MCP configRULE34_MIN_INTERVAL_MSSet in your MCP configRULE34_LOG_LEVELSet in your MCP configInstall with your client
claude mcp add mcp-rule34 --env RULE34_USER_ID=<YOUR_RULE34_USER_ID> --env RULE34_API_KEY=<YOUR_RULE34_API_KEY> --env RULE34_MIN_INTERVAL_MS=<YOUR_RULE34_MIN_INTERVAL_MS> --env RULE34_LOG_LEVEL=<YOUR_RULE34_LOG_LEVEL> -- npx -y mcp-rule34@2.1.0
Run this in a terminal to add the server to Claude Code.
What this does
mcp-rule34 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:
RULE34_USER_ID RULE34_API_KEY RULE34_MIN_INTERVAL_MS RULE34_LOG_LEVEL
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install mcp-rule34?
Run the Claude Code command in the install section to add mcp-rule34 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 mcp-rule34?
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 mcp-rule34 as well.
Does mcp-rule34 need an API key?
Yes. Before it can run, set these environment variables: RULE34_USER_ID, RULE34_API_KEY, RULE34_MIN_INTERVAL_MS, RULE34_LOG_LEVEL. 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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