opik-mcp
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.
Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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comet-ml
Source: mcp.so · also listed on github_topic
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Install from
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MCP_DEFAULT_WORKSPACEMCP_LOGGINGMCP_NAMEMCP_PORTMCP_VERSIONOPIK_API_BASE_URLOPIK_API_KEYget it from [comet.com/api/my/settings/](https://www.comet.com/api/my/settings/).OPIK_SELF_HOSTEDOPIK_TOOLSETSOPIK_WORKSPACE_NAMEREMOTE_TOKEN_WORKSPACE_MAPSTREAMABLE_HTTP_ACCESS_LOGSTREAMABLE_HTTP_CORS_ORIGINSSTREAMABLE_HTTP_HOSTSTREAMABLE_HTTP_LOG_PATHSTREAMABLE_HTTP_PORTSTREAMABLE_HTTP_RATE_LIMIT_MAXSTREAMABLE_HTTP_RATE_LIMIT_WINDOW_MSSTREAMABLE_HTTP_REQUIRE_AUTHSTREAMABLE_HTTP_TRUST_WORKSPACE_HEADERSSTREAMABLE_HTTP_VALIDATE_REMOTE_AUTHTRANSPORTCOMET_WORKSPACEDeprecated alias for OPIK_WORKSPACE (backward compat). OPIK_WORKSPACE wins if both are set.COMET_URL_OVERRIDEAdd (and OPIK_URL if Opik lives at a non-default path) toOPIK_MCP_ANALYTICS_ENABLEDkey never leaves the process. Opt out: =false.OPIK_MCP_ANALYTICS_URLOPIK_MCP_ANALYTICS_SOURCEdirectly. Setting ="" opts your install out of theOPIK_URLAdd COMET_URL_OVERRIDE (and if Opik lives at a non-default path) toOPIK_MCP_AS_URLLocal MCP client → remote Opik (Comet cloud / self-hosted) stdio with OPIK_API_KEY, or HTTP with OAuth ( pointing at the backend)CODESPACESGITPOD_WORKSPACE_IDPYTEST_CURRENT_TESTGITHUB_ACTIONSTool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
6/6 tools missing one or more hints — read (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); ask_ollie (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +3 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Tool handlers catch errors
Only 0/6 tool handlers wrap calls in try/catch (0%)
Wrap each tool handler body in try/catch and return a structured error response.
Tool test coverage
3/6 tools referenced in tests (50%)
Write tests that reference each tool by name so every tool has at least one test.
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