Quicksilver

Cloudflare has opened its internal Quicksilver configuration store to customers as Workers KV Instant, cutting p99 read latency from 287ms in classic KV to 1.62ms. The mode is tightly constrained: 10,000 keys and 1MB total per namespace, one write per second per namespace, and notably higher storage and write pricing, targeting single-key config workloads read globally. It remains in invite-only private beta.