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To add Signal8 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 one environment variable, listed below.
Install
npx -y @signal8ai/mcp@0.19.0Environment variables
SIGNAL8_API_KEYSet in your MCP configInstall with your client
claude mcp add signal8 --env SIGNAL8_API_KEY=<YOUR_SIGNAL8_API_KEY> -- npx -y @signal8ai/mcp@0.19.0
Run this in a terminal to add the server to Claude Code.
What this does
Signal8 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:
SIGNAL8_API_KEY
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install Signal8?
Run the Claude Code command in the install section to add Signal8 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 Signal8?
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 Signal8 as well.
Does Signal8 need an API key?
Yes. Before it can run, set this environment variable: SIGNAL8_API_KEY. They go in the env block of your MCP config.
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