Built for LLM engineers who already run Opik and want to drive it from the same AI assistant they code with.
opik-mcp is an MCP project maintained in the comet-ml/opik-mcp repository. The maintainer describes its purpose as “Built for LLM engineers who already run Opik and want to drive it from the same AI assistant they code with”. Read the project documentation for the complete scope.
The maintainer’s configuration uses https://www.comet.com/opik/api/v1/mcp. Check the project’s account and authentication instructions when adding the endpoint to your client.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
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_skill | Read one of the Opik agent skills bundled with this server |
| Operation | What it does |
| trace.create | Log a single trace (or a batch). Parent for spans / scores / comments. |
| trace.update | Finalize or amend an existing trace. |
| span.create | Log a span on an existing trace (or a batch). |
| score.create | Attach a numeric feedback score to a trace, span, or thread. |
| comment.create | Attach a free-text comment to a trace, span, or thread. |
| prompt_version.save | Save a new prompt version (creates the prompt by name if missing). |
| dataset.create | Create a dataset — type: "test_suite" makes it an evaluation test suite. |
| dataset_item.upsert | Upsert items into a dataset (always the envelope shape). |
| experiment.create | Create an experiment scoped to a dataset. |
| experiment_item.create | Attach trace + dataset_item rows to an experiment. |
| thread.close | Close a thread (mark it inactive). Pass thread_id and the project. |
| thread.open | Reopen a closed thread. Pass thread_id and the project. |
| agent_insights_job.enable | Turn Diagnostics on for a project (daily scans, safe to repeat). |
| agent_insights_job.trigger | Run a Diagnostics scan now, over the last 24 hours. |
| agent_insights_issue.resolve | Mark a Diagnostics issue dealt with (ask the user first). |
| agent_insights_issue.close | Mark a Diagnostics issue not worth acting on (ask the user first). |
| agent_insights_issue.reopen | Put a resolved or closed Diagnostics issue back on the open list. |
{
"mcpServers": {
"opik-mcp": {
"url": "https://www.comet.com/opik/api/v1/mcp"
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
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