# Spaces Object Storage API Reference

Spaces Object Storage is an S3-compatible service for storing and serving large amounts of data. The built-in Spaces CDN minimizes page load times, improves performance, and reduces bandwidth and infrastructure costs.

The Spaces Object Storage API endpoints are organized into the following groups:

- [**CDN Endpoints**](cdn-endpoints/) (6 endpoints): Content hosted in DigitalOcean’s object storage solution, Spaces, can optionally be served by our globally distributed Content Delivery Network (CDN). By sending requests to `/v2/cdn/endpoints`, you can list, create, or delete CDN Endpoints as well as purge cached content. To use a custom subdomain to access the CDN Endpoint, provide the ID of a DigitalOcean managed TLS certificate and the fully qualified domain name for the custom subdomain.
- [**Spaces Keys**](spaces-keys/) (6 endpoints): Spaces keys authenticate requests to DigitalOcean Spaces Buckets. You can create, list, update, or delete Spaces keys by sending requests to to the `/v2/spaces/keys` endpoint.