Cloudflare launches Basin, K2, KV Instant

Cloudflare's Birthday Week, 1 October, is about data. Basin, until now the Data Platform, is ready for production: it ingests, organises and queries Apache Iceberg tables on R2, with no egress fee. K2 is a new event stream on the same storage, in public beta. And Workers KV Instant is a private beta for configuration that reaches the whole network in about a tenth of a second.

In short

Basin: Pipelines, Catalog and SQL on Iceberg and R2, up to 3 GB/s per stream, more than 190 SQL functions, zero egress fee. You pay only when it ingests, processes or queries.
K2: event streams on R2, public beta for Workers Paid. Kafka clients are on the roadmap, not here today. The beta is free; Cloudflare says what prices it expects after it.
KV Instant: per Cloudflare, reads at 1.62 ms at the 99th percentile against 287 ms in classic mode. The price says it on its own: this is for flags and settings.

Checked on2 October 2026Responsible editorTsvetelin IvanovHow we workMethod · Corrections

The egress fee is the oldest trick in the cloud. You upload for free and pay the day you want your data back. Cloudflare went straight for it on day one of its birthday week, with three products at once.

The facts: on 1 October 2026 Cloudflare announced three things. Basin, known until now as Cloudflare Data Platform, is generally available: an open serverless data platform on Apache Iceberg and R2, with no egress fees. Three parts: Basin Pipelines receives events from Workers, HTTP or Logpush, transforms them with SQL and writes them as Iceberg tables or files in R2, at up to 3 GB/s per stream; Basin Catalog manages Iceberg metadata and maintains the tables itself; Basin SQL is a serverless, distributed SQL engine with more than 190 functions. You are billed only when Basin ingests, processes or queries. Per Cloudflare, users created tens of thousands of Pipelines during the beta. K2 is a serverless event streaming service on R2, in public beta for Workers Paid plans: up to 10 GB of storage and 30 MB/s produce per stream, about 1 second of produce latency at the 99th percentile. Support for Apache Kafka clients is on the roadmap. Cloudflare states the prices it anticipates after the beta: $0.04 per GB produced, $0.04 per GB consumed and $0.02 per GB per month retained; the beta is not billed. Workers KV Instant is in private beta: a new KV mode on Quicksilver, Cloudflare's internal key-value store from 2020. Per the company, p99 reads are 1.62 ms against 287 ms in classic mode, and writes reach more than 300 locations with a median of 107 ms and 256 ms at the 99th percentile. Prices: $0.20 per million reads, $0.10 per write, delete or list operation, $100 per MB per month. Limits: up to 10,000 keys, up to 1 MB per namespace, one write per second per namespace.

Basin is the big one. If you keep data in S3 and ask it questions with Athena, you know the bill: every time it leaves, you pay. Cloudflare promises zero egress and quotes a customer who replaced exactly that pair. The customer is their quote, on their blog.

K2 is more modest. A stream on R2, a 10 GB cap in beta and no Kafka clients today. If you already run Kafka, you wait. If you are starting clean, you get a cheap log that you do not have to administer.

Zero egress is the door. Paid ingestion is the rent.

KV Instant wants to be read slowly. $100 per megabyte per month and $0.10 per write are prices for configuration, not for data. A flag, a route, a key: write once, read millions of times, and the change reaches the whole network in a quarter of a second. That is what it is for. Put sessions or a catalogue in there and the invoice will teach you fast.

Same week On 30 September, in the same Birthday Week, Cloudflare opened a beta of pay-per-use for AI reading your text. Data and the money for it are one subject.

If you have Pipelines from the beta, you are already on Basin and nothing changes. If you are only looking now, the number that tells the truth arrives with the first invoice.

The visual is generated code art. No third-party images.

Cloudflare ships Basin for data and K2 for streams, and KV gets a mode where reads drop under two milliseconds

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