How to meter Claude API costs per user in a Next.js SaaS (with code)
Originally published on the Agentwright blog . If you charge users for an AI feature, you need to know what each of them costs you. Not in aggregate, on the Anthropic invoice at the end of the month, but per user, per request, in real time, so you can cap free accounts, show a usage page, and find…
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- 2026-11-03 02:30 · DEV Community — AI
How to meter Claude API costs per user in a Next.js SaaS (with code)