{
 "categories": [
  "observability",
  "developer-tools"
 ],
 "deployment": "hybrid",
 "evidence": [
  {
   "date": "2026-10-08",
   "fact": "homepage",
   "note": "Comet documents Opik's MCP server so a coding assistant can read traces, find failures, and write scores.",
   "source": "https://www.comet.com/docs/opik/mcp-server",
   "tier": "declared"
  },
  {
   "date": "2026-10-08",
   "fact": "license",
   "note": "The comet-ml/opik-mcp README calls Opik an open-source LLM observability and evaluation platform and documents both Opik Cloud and self-hosted Opik.",
   "source": "https://github.com/comet-ml/opik-mcp",
   "tier": "declared"
  },
  {
   "date": "2026-10-08",
   "fact": "modalities.api.exists",
   "note": "Comet documents an Opik REST API for open-source Opik and for Opik Cloud, with a projects example.",
   "source": "https://www.comet.com/docs/opik/reference/rest-api/overview",
   "tier": "declared"
  },
  {
   "date": "2026-10-08",
   "fact": "modalities.api.kinds[0]",
   "note": "The examples are HTTP GET requests to /api/v1/private/projects on localhost or www.comet.com.",
   "source": "https://www.comet.com/docs/opik/reference/rest-api/overview",
   "tier": "declared"
  },
  {
   "date": "2026-10-08",
   "fact": "modalities.api.auth[0]",
   "note": "Opik Cloud sends the API key in the authorization header without a Bearer prefix, plus Comet-Workspace. The open-source example on that page has no key header.",
   "source": "https://www.comet.com/docs/opik/reference/rest-api/overview",
   "tier": "declared"
  },
  {
   "date": "2026-10-08",
   "fact": "modalities.api.coverage",
   "note": "The opened overview shows how to call the API and one projects path. It does not list traces, scores, or prompts.",
   "source": "https://www.comet.com/docs/opik/reference/rest-api/overview",
   "tier": "declared"
  },
  {
   "date": "2026-10-08",
   "fact": "modalities.mcp.first_party",
   "note": "Comet's Opik docs describe the MCP server, including browser sign-in for Opik Cloud and a setup command.",
   "source": "https://www.comet.com/docs/opik/mcp-server",
   "tier": "declared"
  },
  {
   "date": "2026-10-08",
   "fact": "modalities.mcp.verdict",
   "note": "The README calls the server the official Opik MCP server built by Comet, with hosted endpoint https://www.comet.com/opik/api/v1/mcp and a local package for self-hosted Opik.",
   "source": "https://github.com/comet-ml/opik-mcp",
   "tier": "declared"
  },
  {
   "date": "2026-10-08",
   "fact": "modalities.data_access.export[0]",
   "note": "The Cloud example sends Accept: application/json.",
   "source": "https://www.comet.com/docs/opik/reference/rest-api/overview",
   "tier": "declared"
  },
  {
   "date": "2026-10-08",
   "fact": "modalities.agent_docs.llms_txt",
   "note": "Opened https://www.comet.com/docs/opik/llms.txt. It is a plain-text index of Opik documentation.",
   "source": "https://www.comet.com/docs/opik/llms.txt",
   "tier": "declared"
  },
  {
   "date": "2026-10-08",
   "fact": "verdict.scores.api",
   "note": "The REST API is documented for open-source and cloud projects. The opened page does not inventory traces or scores, and the cloud key is not a Bearer token, so the score stays at 7.",
   "source": "https://www.comet.com/docs/opik/reference/rest-api/overview",
   "tier": "declared"
  },
  {
   "date": "2026-10-08",
   "fact": "verdict.scores.mcp",
   "note": "The official server lists traces, writes scores, and saves prompts. Cloud access uses browser sign-in unless a local server is pointed at an API key, so the score stays at 7.",
   "source": "https://github.com/comet-ml/opik-mcp",
   "tier": "declared"
  },
  {
   "date": "2026-10-08",
   "fact": "freshness.watch[0].url",
   "note": "Opened the Opik REST overview, including the open-source and cloud project examples and the non-Bearer API key header.",
   "source": "https://www.comet.com/docs/opik/reference/rest-api/overview",
   "tier": "declared"
  },
  {
   "date": "2026-10-08",
   "fact": "freshness.watch[1].url",
   "note": "Opened the Opik MCP guide, including setup and browser sign-in for Opik Cloud.",
   "source": "https://www.comet.com/docs/opik/mcp-server",
   "tier": "declared"
  },
  {
   "date": "2026-10-08",
   "fact": "freshness.watch[2].url",
   "note": "Opened the comet-ml/opik-mcp README. Official server, hosted cloud endpoint, and local self-hosted package.",
   "source": "https://github.com/comet-ml/opik-mcp",
   "tier": "declared"
  },
  {
   "date": "2026-10-08",
   "fact": "freshness.watch[3].url",
   "note": "Opened the Opik docs llms.txt index.",
   "source": "https://www.comet.com/docs/opik/llms.txt",
   "tier": "declared"
  }
 ],
 "freshness": {
  "last_verified": "2026-10-08",
  "volatility": "high",
  "watch": [
   {
    "type": "docs",
    "url": "https://www.comet.com/docs/opik/reference/rest-api/overview"
   },
   {
    "type": "mcp",
    "url": "https://www.comet.com/docs/opik/mcp-server"
   },
   {
    "type": "repo",
    "url": "https://github.com/comet-ml/opik-mcp"
   },
   {
    "type": "docs",
    "url": "https://www.comet.com/docs/opik/llms.txt"
   }
  ]
 },
 "homepage": "https://www.comet.com/docs/opik/mcp-server",
 "id": "opik",
 "license": "open-source",
 "modalities": {
  "agent_docs": {
   "llms_txt": true
  },
  "api": {
   "auth": [
    "api-key"
   ],
   "coverage": "partial",
   "docs": "https://www.comet.com/docs/opik/reference/rest-api/overview",
   "exists": true,
   "kinds": [
    "rest"
   ]
  },
  "cli": {
   "exists": "unknown"
  },
  "computer_use": {
   "issues": [],
   "viability": "unknown"
  },
  "data_access": {
   "export": [
    "json"
   ],
   "import": []
  },
  "extensibility": {
   "scripting": [],
   "webhooks": "unknown"
  },
  "integrations": {
   "make": "unknown",
   "n8n": "unknown",
   "power_automate": "unknown",
   "zapier": "unknown"
  },
  "mcp": {
   "first_party": true,
   "third_party": [],
   "verdict": "official"
  },
  "rpa": {
   "drivability": "unknown",
   "notes": "No repeatable UI probe was run. Traces and projects are documented as HTTP calls and as the Comet Opik MCP server.\n",
   "ui_stack": [],
   "vendor_support": []
  },
  "sdk": {
   "exists": "unknown",
   "languages": [],
   "official": "unknown"
  }
 },
 "name": "Opik",
 "platforms": [
  "web",
  "linux"
 ],
 "related": {
  "alternatives": [
   "langfuse",
   "langsmith"
  ],
  "our_products": []
 },
 "schema_version": 1,
 "score_version": 1,
 "status": "active",
 "vendor": "Comet",
 "verdict": {
  "best_path": "api",
  "scores": {
   "api": 7,
   "cli": null,
   "computer_use": null,
   "integrations": null,
   "mcp": 7,
   "overall": 7,
   "rpa": null
  },
  "summary": "Opik is automatable today through its REST API and a first-party MCP server. This record is Comet's Opik LLM observability product, including Opik Cloud and self-hosted Opik. It is not Langfuse or LangSmith, and it is not the registry listing com.skopik/mcp. The REST overview shows GET http://localhost:5173/api/v1/private/projects for open-source Opik with no key in the example. Opik Cloud uses GET https://www.comet.com/opik/api/v1/private/projects with Comet-Workspace and an authorization header set to the API key. The page says that header value does not include a Bearer prefix. Comet documents an official MCP server. Opik Cloud uses https://www.comet.com/opik/api/v1/mcp with browser sign-in. A self-hosted deployment uses the local opik-mcp package. The comet-ml/opik-mcp README says the tools list traces, write scores, and save prompt versions. https://www.comet.com/docs/opik/llms.txt is a documentation index. A language SDK, a CLI, webhooks, and connector catalogs were not opened. Computer-use viability is unassessed. The REST API and the MCP server both score 7. The API is the best path because a script can call it without a browser sign-in. Cloud MCP OAuth is the path when an assistant should use the signed-in workspace.\n"
 }
}