Query and analyze your Opik logs, traces, prompts and all other telemtry data from your LLMs in natural language.
Comet opik mcp server lets Claude, Cursor and other MCP clients work with Comet Opik directly. Query and analyze your Opik logs, traces, prompts and all other telemtry data from your LLMs in natural language.
Built for LLM engineers who already run Opik and want to drive it from the same AI assistant they code with.
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Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| read | One tool for any "show me X" question. Takes an entity_type plus an id (UUID or, for nameable types, a name) or a full opik:// URI. Composite reads (trace, prompt) inline their children so a single call returns the full |
| list | Browse a collection with optional name filter and pagination. Project-scoped types (trace, test_suite_item, prompt_version) require their parent UUID. |
| ask_ollie | For investigative questions, cross-entity synthesis, or anything that needs Opik domain expertise. Ollie has direct read access to your workspace and can execute writes (scores, comments, test-suite items, prompt version |
| write | Universal write dispatcher. Pass operation + data and the dispatcher validates the payload, applies the right REST verb, and returns the backend response. |
| schema | Inspect the exact JSON shape and required fields of any write operation before you call it — useful when you're not sure what data should look like. Returns the schema, OAuth scope, and one validated example. Pure lookup |
| run_experiment | Run an evaluation experiment end-to-end via Ollie. Takes a single experiment_config dict that mirrors Opik's experiment shape (prompt, test suite, scorers); Ollie executes the run and writes results back as an Opik exper |
claude mcp add opik --env OPIK_API_KEY=your-value --env OPIK_WORKSPACE=your-value --env COMET_URL_OVERRIDE=your-value --env OPIK_MCP_ANALYTICS_SOURCE=your-value --env OPIK_URL=your-value --env COMET_WORKSPACE_ID=your-value --env OPIK_MCP_HOST=your-value --env OPIK_MCP_AS_URL=your-value -- npx -y opik-mcp| Variable | Description | Required |
|---|---|---|
| OPIK_API_KEY | Credential the server authenticates with. | Yes |
| OPIK_WORKSPACE | Configuration value read at startup. | Optional |
| COMET_URL_OVERRIDE | Endpoint or connection string the server talks to. | Yes |
| OPIK_MCP_ANALYTICS_SOURCE | Configuration value read at startup. | Optional |
| OPIK_URL | Endpoint or connection string the server talks to. | Yes |
| COMET_WORKSPACE_ID | Configuration value read at startup. | Optional |
| OPIK_MCP_HOST | Endpoint or connection string the server talks to. | Optional |
| OPIK_MCP_AS_URL | Endpoint or connection string the server talks to. | Yes |
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