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Opik MCP Server

answering

Opik is answering right now. Last checked 2 min ago. 2 155 installs a week from pypi. Last commit 28 Oct 2026.

Read and score Opik traces, experiments, datasets and prompts from your AI assistant.

Installs per day peak 1 498 · avg 345 · +34% w/w
a month agotoday
Uptime history 30 days of history
30 days agonow
100.0%
Uptime 24h
92 of 92 checks
—
Tools
hidden behind auth
357 ms
Response time
average over 24h
2 155
Installs / week
npm and PyPI

What the code does

We read the source, 6 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

_DOCKERENV_PATH = "/.dockerenv"
File ships in the package but is absent from the source [пакет] src/opik_mcp/_version.py:1
этот файл ставится пользователю, но в репозитории его нет

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.

run in your terminal
claude mcp add opik-mcp --transport http https://www.comet.com/opik/api/v1/mcp
Settings → Connectors → Add custom connector, then paste this address
https://www.comet.com/opik/api/v1/mcp
~/.codex/config.toml
[mcp_servers.opik-mcp]
url = "https://www.comet.com/opik/api/v1/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "opik-mcp": {
      "url": "https://www.comet.com/opik/api/v1/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "opik-mcp": {
      "type": "http",
      "url": "https://www.comet.com/opik/api/v1/mcp"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.

Endpoints

URLTransportStateLatencyChecked
https://www.comet.com/opik/api/v1/mcp streamable-http sign-in 346 ms 2 min ago

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Opik — questions

Answers built from our own checks of this server.

Why is there no tool list for Opik?
The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 100.0% of checks in the last 24 hours got a reply.
Is Opik working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 357 ms. The bar chart above shows every period we have measured.
How do I connect Opik?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You sign in through your browser once and the client keeps the session: no key to copy, and it refuses anonymous clients.
How do you sign in to Opik?
No API key is involved. Opik answers our knock with an OAuth challenge, so you authorise it once in your browser and the client keeps the session. That is also why we see no tool list: it will not describe itself to an anonymous client, and that is the server working as intended, not a fault.
How fast is Opik?
It answers our handshake in 357 ms on average, which is faster than 40% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
How many people use Opik?
The pypi package opik-mcp was installed 2 155 times in the last week. Week over week that is +34%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Opik open source?
The code is open source: it is published under the Apache-2.0 licence, written in Python, 225 stars on GitHub and 3 open issues. The licence covers the code in the repository, not the hosted service at comet.com, which runs on its operator's own terms.