opik-mcp MCP server

Model Context Protocol (MCP) server for Opik, the open-source LLM observability and evaluation platform, built by Comet. Read traces, log scores, and manage prompts from Claude Code, Cursor, or VS Code.

What opik-mcp does

Summarised from the project README; check the repository for the latest details.

Tools exposed (20+)

• read_skill – Read one of the Opik agent skills bundled with this server
• read
• list
• write
• Operation – What it does
• trace.create – Log a single trace (or a batch). Parent for spans / scores / comments.
• trace.update – Finalize or amend an existing trace.
• span.create – Log a span on an existing trace (or a batch).
• score.create – Attach a numeric feedback score to a trace, span, or thread.
• comment.create – Attach a free-text comment to a trace, span, or thread.
• prompt_version.save – Save a new prompt version (creates the prompt by name if missing).
• dataset.create – Create a dataset — `type: "testsuite"` makes it an evaluation test suite.
• dataset_item.upsert – Upsert items into a dataset (always the envelope shape).
• experiment.create – Create an experiment scoped to a dataset.
• experiment_item.create – Attach trace + datasetitem rows to an experiment.
• thread.close – Close a thread (mark it inactive). Pass `threadid` and the project.
• thread.open – Reopen a closed thread. Pass `threadid` and the project.
• agent_insights_job.enable – Turn Diagnostics on for a project (daily scans, safe to repeat).
• agent_insights_job.trigger – Run a Diagnostics scan now, over the last 24 hours.
• agent_insights_issue.resolve – Mark a Diagnostics issue dealt with (ask the user first).

Requirements

• Remote server URL (no local install)

How to install opik-mcp MCP in Claude Desktop, Cursor and VS Code

claude mcp add --transport http opik-mcp https://www.comet.com/opik/api/v1/mcp

{
  "mcpServers": {
    "opik-mcp": {
      "url": "https://www.comet.com/opik/api/v1/mcp"
    }
  }
}

{
  "servers": {
    "opik-mcp": {
      "type": "http",
      "url": "https://www.comet.com/opik/api/v1/mcp"
    }
  }
}

Add to config generator – combine it with other servers, or get the Windsurf format.

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