Workers KV is included in both the Free and Paid Workers plans.
| Free plan1 | Paid plan | |
|---|---|---|
| Keys read | 100,000 / day | 10 million/month, + $0.50/million |
| Keys written | 1,000 / day | 1 million/month, + $5.00/million |
| Keys deleted | 1,000 / day | 1 million/month, + $5.00/million |
| List requests | 1,000 / day | 1 million/month, + $5.00/million |
| Stored data | 1 GB | 1 GB, + $0.50/ GB-month |
1 The Workers Free plan includes limited Workers KV usage. All limits reset daily at 00:00 UTC. If you exceed any one of these limits, further operations of that type will fail with an error.
When writing via KV's REST API, how are writes charged?
Each key-value pair in the PUT request is counted as a single write, identical to how each call to PUT in the Workers API counts as a write. Writing 5,000 keys via the REST API incurs the same write costs as making 5,000 PUT calls in a Worker.
Yes, any operations via the Cloudflare dashboard or wrangler, including updating (writing) keys, deleting keys, and listing the keys in a namespace count as billable KV usage.
No.
All operations incur charges, including fetches for non-existent keys that return a null (Workers API) or HTTP 404 (REST API). These operations still traverse KV's infrastructure.