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To add mcp-cantina 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 6 environment variables, listed below.
Install
npx -y @mosaisley/mcp-cantina@0.0.3Environment variables
MOSAISLEY_APISet in your MCP configMOSAISLEY_PATRON_IDSet in your MCP configAGENT_PRIVATE_KEYSet in your MCP configMAX_SPEND_CENTSSet in your MCP configMAX_SESSION_SPEND_CENTSSet in your MCP configPAYMENT_SIGNATURESet in your MCP configInstall with your client
claude mcp add mcp-cantina --env MOSAISLEY_API=<YOUR_MOSAISLEY_API> --env MOSAISLEY_PATRON_ID=<YOUR_MOSAISLEY_PATRON_ID> --env AGENT_PRIVATE_KEY=<YOUR_AGENT_PRIVATE_KEY> --env MAX_SPEND_CENTS=<YOUR_MAX_SPEND_CENTS> --env MAX_SESSION_SPEND_CENTS=<YOUR_MAX_SESSION_SPEND_CENTS> --env PAYMENT_SIGNATURE=<YOUR_PAYMENT_SIGNATURE> -- npx -y @mosaisley/mcp-cantina@0.0.3
Run this in a terminal to add the server to Claude Code.
What this does
mcp-cantina 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:
MOSAISLEY_API MOSAISLEY_PATRON_ID AGENT_PRIVATE_KEY MAX_SPEND_CENTS MAX_SESSION_SPEND_CENTS PAYMENT_SIGNATURE
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-cantina?
Run the Claude Code command in the install section to add mcp-cantina 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-cantina?
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-cantina as well.
Does mcp-cantina need an API key?
Yes. Before it can run, set these environment variables: MOSAISLEY_API, MOSAISLEY_PATRON_ID, AGENT_PRIVATE_KEY, MAX_SPEND_CENTS, MAX_SESSION_SPEND_CENTS, PAYMENT_SIGNATURE. 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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