Workers KV supports:

  • Up to 20 Namespaces per account
  • Unlimited keys per Namespace (billions supported)
  • Keys of up to 512 bytes
  • Values of up to 2 MB
  • Unlimited (100k+) reads per second per key
  • Up to one write per second per key

If your application requires higher limits, please let us know.

Workers KV read performance is determined by the amount of read-volume a given key receives. Maximum performance for a key is not reached unless that key is being read at least a couple times per minute in any given data center.