Built for every team shipping AI.
Whether you are a solo founder or an engineering team, the same problem keeps showing up: you are spending money on AI and you do not have a clear picture of where it is going. API Coleen fixes that.
For Startups
When you are iterating fast on AI features, costs can spiral before you notice. API Coleen gives you per-request visibility and daily budget alerts so you can move fast without burning through runway on surprise inference bills.
For Engineering Teams
Know exactly which feature or endpoint is responsible for your AI spend. Per-feature cost attribution means engineers can optimise the right call — not just guess based on aggregate billing data from the provider.
For Finance & Ops
Set monthly AI budgets, receive threshold alerts before overspend, and pull a clean PDF or CSV report for finance reviews — without needing an engineer to query logs or interpret provider invoices.
Why teams choose API Coleen
- No surprise bills — budget alerts fire before you overspend, not after
- Works with your existing code — no SDK rewrites, just point your API calls through us
- Multi-provider in one view — OpenAI, Anthropic, and Gemini side by side
- Honest, founder-built — small team, we read every piece of feedback and ship fast
Find the right plan for your team
Start on the free tier, upgrade when you need more. No lock-in.