MCP server for the Qiskit Code Assistant intelligent code completion
To add Qiskit Code Assistant MCP Server 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 3 environment variables, listed below.
Install
uvx qiskit-code-assistant-mcp-server@0.4.0Environment variables
QISKIT_IBM_TOKENSet in your MCP configQCA_TOOL_API_BASESet in your MCP configQCA_TOOL_MODEL_NAMESet in your MCP configInstall with your client
claude mcp add qiskit-code-assistant --env QISKIT_IBM_TOKEN=<YOUR_QISKIT_IBM_TOKEN> --env QCA_TOOL_API_BASE=<YOUR_QCA_TOOL_API_BASE> --env QCA_TOOL_MODEL_NAME=<YOUR_QCA_TOOL_MODEL_NAME> -- uvx qiskit-code-assistant-mcp-server@0.4.0
Run this in a terminal to add the server to Claude Code.
What this does
Qiskit Code Assistant MCP Server 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:
QISKIT_IBM_TOKEN QCA_TOOL_API_BASE QCA_TOOL_MODEL_NAME
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install Qiskit Code Assistant MCP Server?
Run the Claude Code command in the install section to add Qiskit Code Assistant MCP Server 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 Qiskit Code Assistant MCP Server?
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 Qiskit Code Assistant MCP Server as well.
Does Qiskit Code Assistant MCP Server need an API key?
Yes. Before it can run, set these environment variables: QISKIT_IBM_TOKEN, QCA_TOOL_API_BASE, QCA_TOOL_MODEL_NAME. 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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