Per-user AI token quotas: your backend decides who is counted, and a 429 is not a diagnosis
A per-user token quota rests on three decisions: who the user is, what you count, and who answers when the limit is reached. The first one decides whether the other two mean anything. If the browser or the mobile app can set the user id or the plan name, a caller can change whose quota is charged,…
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- 2026-11-08 00:00 · DEV Community — AI
Per-user AI token quotas: your backend decides who is counted, and a 429 is not a diagnosis