MCP.Market

Opik MCP server

online · 100% uptime
by comet-ml·io.github.comet-ml/opik-mcp·v3.0.8·221 stars
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Read and score Opik traces, experiments, datasets and prompts from your AI assistant.

A85/100grade A
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Safety scan
A85/100

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Adoption
Growing

221 stars

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How Opik compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
85/100
higher than 70% of 48,255 servers
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
368 ms
faster than 40% of 30,031 servers
GitHub stars
221
more than 95% of 28,688 servers

Release history: 4 versions in the registry since 2026-05-29, latest 2026-10-28, typically one every 15 days.

Install Opik in Claude Code, Cursor or VS Code

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

What the publisher says

From the Opik repository's README, as published. We do not edit it. Read it on GitHub

Opik MCP Server

The official Model Context Protocol (MCP) server for Opik, the open-source LLM observability and evaluation platform, built by Comet. Plug your AI host (Claude Code, Cursor, VS Code Copilot, Codex, opencode, or any MCP client) directly into your Opik workspace: read traces, log scores, and save prompt versions, all from the chat.

Built for LLM engineers who already run Opik and want to drive it from the same AI assistant they code with.

Migrating from the old npx opik-mcp? The TypeScript server is deprecated

and sunsets on 2026-11-15. Swap npx -y opik-mcp for uvx opik-mcp@latest

in your MCP client config. Full guide: legacy/typescript/MIGRATION.md.

You:    "Which traces in project 'demo' failed today?"
Claude: → list(entity_type="trace", project_name="demo") → "Three traces failed…"

You:    "Score trace 7f2e… 0.9 on helpfulness with reason 'great recovery'."
Claude: → write(score.create) → done

Quick start

One command registers the server with the AI clients on your machine, installs the Opik skill pack, and verifies the connection. It needs uv and no Opik SDK:

uvx opik mcp configure

It detects Claude Code, Cursor, VS Code Copilot, Codex and opencode, and uses the hosted server on Opik Cloud (browser sign-in, no API key stored) or this local server elsewhere. Any other MCP client can take the hosted URL directly:

npx add-mcp https://www.comet.com/opik/api/v1/mcp --name opik-mcp

Setup guide, troubleshooting and FAQ: comet.com/docs/opik/mcp-server. The rest of this README covers the local server, which the command above sets up for self-hosted and open-source Opik, and which you can also configure by hand.

Manual install

opik-mcp is a Python package (requires Python 3.13+). The recommended way to run it is uvx, which fetches and runs the latest published version on demand — no global install, no virtualenv juggling.

Install uv once:

curl -LsSf https://astral.sh/uv/install.sh | sh   # macOS / Linux
# or: brew install uv

You'll need two things from your Opik workspace:

  • OPIKAPIKEY — get it from comet.com/api/my/settings/.
  • OPIKWORKSPACE — your workspace name (lowercase, as it appears in the URL). E.g. https://www.comet.com/acme-ai/... → OPIKWORKSPACE=acme-ai. COMET_WORKSPACE is accepted as a deprecated alias.

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Opik: common questions

Is Opik MCP server safe?
Yes, by our scan: it is graded A (85/100). Read the Opik safety report
How do I install Opik?
It runs remotely at www.comet.com. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Opik need an API key?
Yes. The registry entry asks for OPIK_API_KEY.
Is Opik maintained?
The last commit was 40 days ago (2026-09-25). The latest release is v3.0.8.
Is Opik up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does Opik compare with other MCP servers?
safety score 85/100 (higher than 70% of 48,255 servers); uptime 100% (of our recent checks; the typical remote server answers 100%); response time 368 ms (faster than 40% of 30,031 servers). Full comparison.