> ## Documentation Index
> Fetch the complete documentation index at: https://upstash.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Redis® API Compatibility: supported commands, modules, and protocols

<Note>
  Upstash supports both native Redis TCP and HTTPS REST.
</Note>

Upstash supports Redis client protocol up to version `8.2`. We are also gradually adding changes introduced in later versions.

<Card title="Browse the Redis command reference" icon="book-open" href="/docs/redis/commands/overview" horizontal>
  See every supported Redis command, organized by category.
</Card>

SDK command references may cover a smaller set of typed helpers.
For example, see the [TypeScript SDK command reference](/docs/redis/sdks/ts/commands/overview) for the commands documented in `@upstash/redis`.

Most unsupported items are on our roadmap. If you need a feature that we do not support, email [support@upstash.com](mailto:support@upstash.com) so we can let you know when we plan to support it.


## Related topics

- [REST API](/docs/redis/features/restapi.md)
- [Frequently Asked Questions](/docs/redis/help/faq.md)
- [$in](/docs/redis/search/query-operators/field-operators/in.md)
- [$regex](/docs/redis/search/query-operators/field-operators/regex.md)
- [$facet](/docs/redis/search/aggregation-operators/bucket-aggregations/facet.md)