SERVER

Opik

Rank #404

io.github.comet-ml/opik-mcp

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

12 versions

222 GitHub stars

by comet-ml (3 servers)View repository ↗

First listed

Mar 11, 2025

Last publish date

Oct 8, 2026

PURPOSE

What you can do with Opik

Opik is a Model Context Protocol (MCP) server published by comet-ml. It ranks #404 of 144,396 active servers on MCP Toplist, and its repository has 222 GitHub stars. Opik is listed across 4 registries — Official MCP, PulseMCP, mcp.so and Glama, with 12 tracked versions. It was first listed on Mar 11, 2025 and most recently updated on Oct 8, 2026.

Not verifiedMCP Toplist has not yet written a checked profile for this server, so the paragraph above is assembled from registry data only. The repository README is the authority on what it does.

CAPABILITIES AND LIMITATIONS

What Opik can and cannot do

Not verifiedMCP Toplist has not catalogued this server's tools or limitations. The repository README lists them.

REQUIREMENTS

What you need before using Opik

DeclaredNo credentialsNo credentials declared

The registry listing declares no required environment variables or authentication. This is declared metadata, not a verified install — the repository README is the authority.

MCP Toplist probed the public endpoint on Oct 6, 2026 and could not complete the MCP handshake (jsonrpc error). Requirements remain unverified.

Declared by the Official MCP Registry, last synced Oct 16, 2026. Not independently verified by MCP Toplist.

Declared in the registry install config

OPIK_API_KEY · optional
OPIK_WORKSPACE · optional
OPIK_URL · optional
COMET_URL_OVERRIDE · optional

Hosted endpoint declared as public.

INSTALLATION AND FIRST TASK

Connect Opik and confirm it works

Remote · HTTP

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

Python package (PyPI)

claude mcp add opik-mcp -e "OPIK_API_KEY=<your OPIK_API_KEY>" -e "OPIK_WORKSPACE=<your OPIK_WORKSPACE>" -e "OPIK_URL=<your OPIK_URL>" -e "COMET_URL_OVERRIDE=<your COMET_URL_OVERRIDE>" -- uvx opik-mcp

Replace each placeholder with your own value before saving.

Remote · HTTP

[mcp_servers.opik-mcp]
url = "https://www.comet.com/opik/api/v1/mcp"

Add to ~/.codex/config.toml.

Python package (PyPI)

[mcp_servers.opik-mcp]
command = "uvx"
args = ["opik-mcp"]

[mcp_servers.opik-mcp.env]
OPIK_API_KEY = "<your OPIK_API_KEY>"
OPIK_WORKSPACE = "<your OPIK_WORKSPACE>"
OPIK_URL = "<your OPIK_URL>"
COMET_URL_OVERRIDE = "<your COMET_URL_OVERRIDE>"

Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.

Remote · HTTP

https://www.comet.com/opik/api/v1/mcp

Settings → Connectors → “Add custom connector”, then paste this URL.

Python package (PyPI)

{
  "mcpServers": {
    "opik-mcp": {
      "command": "uvx",
      "args": [
        "opik-mcp"
      ],
      "env": {
        "OPIK_API_KEY": "<your OPIK_API_KEY>",
        "OPIK_WORKSPACE": "<your OPIK_WORKSPACE>",
        "OPIK_URL": "<your OPIK_URL>",
        "COMET_URL_OVERRIDE": "<your COMET_URL_OVERRIDE>"
      }
    }
  }
}

Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.

Remote · HTTP

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

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project).

Python package (PyPI)

{
  "mcpServers": {
    "opik-mcp": {
      "command": "uvx",
      "args": [
        "opik-mcp"
      ],
      "env": {
        "OPIK_API_KEY": "<your OPIK_API_KEY>",
        "OPIK_WORKSPACE": "<your OPIK_WORKSPACE>",
        "OPIK_URL": "<your OPIK_URL>",
        "COMET_URL_OVERRIDE": "<your COMET_URL_OVERRIDE>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.

Remote · HTTP

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

Save as .vscode/mcp.json in your workspace.

Python package (PyPI)

{
  "servers": {
    "opik-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "opik-mcp"
      ],
      "env": {
        "OPIK_API_KEY": "<your OPIK_API_KEY>",
        "OPIK_WORKSPACE": "<your OPIK_WORKSPACE>",
        "OPIK_URL": "<your OPIK_URL>",
        "COMET_URL_OVERRIDE": "<your COMET_URL_OVERRIDE>"
      }
    }
  }
}

Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.

Remote · HTTP

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

Add to ~/.codeium/windsurf/mcp_config.json.

Python package (PyPI)

{
  "mcpServers": {
    "opik-mcp": {
      "command": "uvx",
      "args": [
        "opik-mcp"
      ],
      "env": {
        "OPIK_API_KEY": "<your OPIK_API_KEY>",
        "OPIK_WORKSPACE": "<your OPIK_WORKSPACE>",
        "OPIK_URL": "<your OPIK_URL>",
        "COMET_URL_OVERRIDE": "<your COMET_URL_OVERRIDE>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.

Remote · HTTP

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

Python package (PyPI)

{
  "mcpServers": {
    "opik-mcp": {
      "command": "uvx",
      "args": [
        "opik-mcp"
      ],
      "env": {
        "OPIK_API_KEY": "<your OPIK_API_KEY>",
        "OPIK_WORKSPACE": "<your OPIK_WORKSPACE>",
        "OPIK_URL": "<your OPIK_URL>",
        "COMET_URL_OVERRIDE": "<your COMET_URL_OVERRIDE>"
      }
    }
  }
}

Replace each placeholder with your own value before saving.

First successful task

After adding the config, ask your client to list this server's tools. A tool list confirms the connection; an empty list or an error means the server did not start or needs credentials.

ALTERNATIVES

When to choose another server

Other servers by comet-ml

View all comet-ml servers →

No task-specific alternatives are catalogued for Opikyet; the list above is its publisher's other servers.

MAINTENANCE AND EVIDENCE

What changed, and when this was checked

First listed: Mar 11, 2025
Latest version published: Oct 8, 2026
Version history: 12 versions tracked (below)
Requirements evidence: MCP Toplist probed the public endpoint on Oct 6, 2026 and could not complete the MCP handshake (jsonrpc error). Requirements remain unverified.
Profile checked: Not yet — purpose, capabilities and requirements above come from registry data only
Ranking data as of: Oct 16, 2026

Registry sightings

Official MCP ↗listed since Apr 25, 2026 · still listed
PulseMCP ↗listed since Jun 4, 2026 · still listed
mcp.so ↗listed since Jun 4, 2026 · still listed
Glama ↗listed since Jun 4, 2026 · still listed

Do you maintain Opik? to correct or enrich this profile.

VERSIONS

Available versions (12)

Version	Published
3.0.5	Oct 8, 2026
3.0.4	Oct 8, 2026
3.0.3	Oct 8, 2026
3.0.2	Oct 8, 2026
3.0.1	Oct 7, 2026
3.0.0	Oct 5, 2026
0.2.39	Oct 5, 2026
2.0.2	May 29, 2026
2.0.1	Mar 7, 2026
2.0.0	Feb 24, 2026
0.1.3	Nov 13, 2025
0.1.0	Nov 25, 2024

STANDING

#404of 144,396 active serversTop 0.5%

Ranks ahead of 143,992 of 144,396 servers on MCP Toplist.

Recent momentum

+19GitHub stars since Apr 27 (+9%)

BADGE

Show your rank

Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.

Markdown

[![MCP Toplist](https://mcptoplist.com/badge/io.github.comet-ml%2Fopik-mcp.svg)](https://mcptoplist.com/server/io.github.comet-ml%2Fopik-mcp)

HTML

<a href="https://mcptoplist.com/server/io.github.comet-ml%2Fopik-mcp"><img src="https://mcptoplist.com/badge/io.github.comet-ml%2Fopik-mcp.svg" alt="MCP Toplist: Top 1% of 144,396" /></a>

Variants: append ?metric=score or ?metric=stars to the image URL.

FAQ

Frequently asked questions

Who maintains Opik?: Opik is maintained by comet-ml, which publishes 3 MCP servers (17 total versions) tracked on MCP Toplist.
Is Opik listed on the Official MCP Registry?: Yes — Opik is listed on the Official MCP Registry, alongside PulseMCP, mcp.so and Glama.
How many versions does Opik have?: MCP Toplist tracks 12 versions of Opik, most recently published on Oct 8, 2026.
Where can I find the source code for Opik?: The source code for Opik is hosted at github.com/comet-ml/opik-mcp.

Used in projects

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