Zukko Blog
Guides to Claude Code, Cursor, Codex and the Claude and GPT APIs: setup, token savings and troubleshooting.
Estimating request cost upfront with count_tokens
4 min · · API
Before burning balance on a long prompt, you can check its token count for free. Here is how, in one request.
The X-Zukko-Cache response cache: when a request is free
5 min · · API
The same request from the same user shouldn't be billed twice. Here is how the cache turns on and how to check whether it actually fired.
Real-time spend monitoring from response headers
4 min · · API
You don't need to wait for a daily report to know what a request cost — the price and the remaining balance arrive in the headers of every non-streaming response. Here's how to use that.
How to actually cut token spend
5 min · · экономия
Token spend rarely drops from one clever trick — usually it is five smaller decisions that add up to something noticeable.