> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://www.comet.com/docs/opik/reference/rest-api/spans/llms.txt.

# Spans

> Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations, and production-ready dashboards.


## API Docs

- Spans [Add span comment](https://www.comet.com/docs/opik/reference/rest-api/spans/add-span-comment.md)
- Spans [Add span feedback score](https://www.comet.com/docs/opik/reference/rest-api/spans/add-span-feedback-score.md)
- Spans [Create spans](https://www.comet.com/docs/opik/reference/rest-api/spans/create-spans.md)
- Spans [Batch update spans](https://www.comet.com/docs/opik/reference/rest-api/spans/batch-update-spans.md)
- Spans [Get spans by project_name or project_id and optionally by trace_id and/or type](https://www.comet.com/docs/opik/reference/rest-api/spans/get-spans-by-project.md)
- Spans [Create span](https://www.comet.com/docs/opik/reference/rest-api/spans/create-span.md)
- Spans [Get span by id](https://www.comet.com/docs/opik/reference/rest-api/spans/get-span-by-id.md)
- Spans [Delete span by id](https://www.comet.com/docs/opik/reference/rest-api/spans/delete-span-by-id.md)
- Spans [Update span by id](https://www.comet.com/docs/opik/reference/rest-api/spans/update-span.md)
- Spans [Delete span comments](https://www.comet.com/docs/opik/reference/rest-api/spans/delete-span-comments.md)
- Spans [Delete span feedback score](https://www.comet.com/docs/opik/reference/rest-api/spans/delete-span-feedback-score.md)
- Spans [Find Feedback Score names](https://www.comet.com/docs/opik/reference/rest-api/spans/find-feedback-score-names-1.md)
- Spans [Get span comment](https://www.comet.com/docs/opik/reference/rest-api/spans/get-span-comment.md)
- Spans [Get span stats](https://www.comet.com/docs/opik/reference/rest-api/spans/get-span-stats.md)
- Spans [Batch feedback scoring for spans](https://www.comet.com/docs/opik/reference/rest-api/spans/score-batch-of-spans.md)
- Spans [Search spans](https://www.comet.com/docs/opik/reference/rest-api/spans/search-spans.md)
- Spans [Check whether a project has spans](https://www.comet.com/docs/opik/reference/rest-api/spans/exist.md)
- Spans [Update span comment by id](https://www.comet.com/docs/opik/reference/rest-api/spans/update-span-comment.md)

## OpenAPI Specification

The raw OpenAPI 3.1 specification for this API is available at:
- [OpenAPI JSON](https://www.comet.com/docs/opik/reference/rest-api/spans/openapi.json)
- [OpenAPI YAML](https://www.comet.com/docs/opik/reference/rest-api/spans/openapi.yaml)