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Upstash supports both native Redis TCP and HTTPS REST.
Upstash supports Redis client protocol up to version 8.4. We are also gradually adding changes introduced in later versions.

Browse the Redis command reference

See every supported Redis command, organized by category.
Alongside the open-source command set, Upstash adds command families of its own:
  • Search indexes JSON, hash, string, and stream keys through SEARCH.* commands. These are separate from, and incompatible with, the FT.* commands of the RediSearch module.
  • Vector stores embeddings and answers nearest-neighbour queries through VECTOR.* commands.
Extension commands are reachable from any client through its generic command interface, and from the REST API like any other command. SDK command references may cover a smaller set of typed helpers. For example, see the TypeScript SDK command reference for the commands documented in @upstash/redis.

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Limitations

  • Upstash exposes a single logical database. Only index 0 is valid for SELECT; any other index returns an error. Use key prefixes to separate concerns instead of numbered databases.
  • Command support varies by protocol. For example, connection commands are limited to PING and ECHO over the REST API. See the REST API compatibility table for details.
Most unsupported items are on our roadmap. If you need a feature that we do not support, email support@upstash.com so we can let you know when we plan to support it.