Cloudflare Opens Quicksilver to Customers as Workers KV Instant, Inside a 1 MB Envelope

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Posted on Wed Oct 28 2026 | 2:27 pm

Cloudflare has put Quicksilver, the internal key-value store behind nearly every request it serves, into private beta as a Workers KV mode. Reads resolve in 1.62 ms at p99 against 287 ms for classic KV. The constraints decide the use case: 10,000 keys, one megabyte per namespace, and one write per namespace per second.

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