> For the complete documentation index, see [llms.txt](https://docs.unitlab.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.unitlab.ai/api-sdk-cli/apis.md).

# APIs

- [API overview](https://docs.unitlab.ai/api-sdk-cli/apis/api-overview.md): Understand the public HTTP resource model, base URL, version boundary, and request lifecycle.
- [API authentication](https://docs.unitlab.ai/api-sdk-cli/apis/api-authentication.md): Create, store, send, rotate, and validate workspace API keys safely.
- [Projects API](https://docs.unitlab.ai/api-sdk-cli/apis/projects-api.md): Create, list, retrieve, update, and delete Projects with explicit state checks.
- [Project data and Batch Queues API](https://docs.unitlab.ai/api-sdk-cli/apis/project-data-and-batch-queues-api.md): List Data Units, upload files, attach governed sources, and monitor ingestion.
- [Assets and folders API](https://docs.unitlab.ai/api-sdk-cli/apis/assets-and-folders-api.md): Upload durable Assets, manage hierarchy and metadata, synchronize cloud folders, and create Data Groups.
- [Cloud storage API](https://docs.unitlab.ai/api-sdk-cli/apis/cloud-storage-api.md): List approved integrations, browse provider content, and import selected paths into a Project.
- [Datasets API](https://docs.unitlab.ai/api-sdk-cli/apis/datasets-api.md): Create reusable Datasets, manage draft membership, publish versions, and read exact snapshots.
- [Ontologies API](https://docs.unitlab.ai/api-sdk-cli/apis/ontologies-api.md): List, retrieve, create, and save reusable Ontology schemas with explicit structures and revisions.
- [Annotations and workflow API](https://docs.unitlab.ai/api-sdk-cli/apis/annotations-and-workflow-api.md): Operate annotation work through stages and tasks with ownership, actions, overrides, and history.
- [Releases API](https://docs.unitlab.ai/api-sdk-cli/apis/releases-api.md): Create versioned Project exports, inspect metadata, and request annotation or source downloads.
- [Embedding spaces API](https://docs.unitlab.ai/api-sdk-cli/apis/embedding-spaces-api.md): Create vector spaces, upsert asset or frame vectors, and run scoped similarity search.
- [Errors, pagination, and retries](https://docs.unitlab.ai/api-sdk-cli/apis/errors-pagination-and-retries.md): Implement deterministic errors, complete traversal, bounded polling, and state-aware retries.