Read and score Opik traces, experiments, datasets and prompts from your AI assistant.
To add Opik 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
uvx opik-mcp@3.0.8Environment variables
OPIK_API_KEYSet in your MCP configOPIK_WORKSPACESet in your MCP configOPIK_URLSet in your MCP configCOMET_URL_OVERRIDESet in your MCP configInstall with your client
claude mcp add opik --env OPIK_API_KEY=<YOUR_OPIK_API_KEY> --env OPIK_WORKSPACE=<YOUR_OPIK_WORKSPACE> --env OPIK_URL=<YOUR_OPIK_URL> --env COMET_URL_OVERRIDE=<YOUR_COMET_URL_OVERRIDE> -- uvx opik-mcp@3.0.8
Run this in a terminal to add the server to Claude Code.
What this does
Opik 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:
OPIK_API_KEY OPIK_WORKSPACE OPIK_URL COMET_URL_OVERRIDE
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install Opik?
Run the Claude Code command in the install section to add Opik 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 Opik?
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 Opik as well.
Does Opik need an API key?
Yes. Before it can run, set these environment variables: OPIK_API_KEY, OPIK_WORKSPACE, OPIK_URL, COMET_URL_OVERRIDE. They go in the env block of your MCP config.
What license is Opik under?
Opik is listed under the Apache-2.0 license.
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.
Is this your MCP server?
Claim this listing to see its traffic, fix details yourself, and skip the review queue on future updates.
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