What Happens When an AI Agent Pays for Its Own API Calls

Your AI agent needs to search flights. It needs real-time stock prices. It needs to OCR a receipt image. Each of these requires a different API, a different auth flow, a different billing account. What if the agent just... paid for each call itself? No subscriptions. No API key management. No human in the loop. That's what I built. Here's how it works. The Problem: API Integration Is a Tax on Every Agent Builder If you're building an AI agent that interacts with the real world, you already know the pain: Amadeus needs OAuth2 with double-base64 encoding Finnhub uses a query param token Serper wants an X-API-KEY header NASA uses ?api_key= in the URL Some APIs charge per call, others per month, others per character For each provider, you're writing auth code, error handling, retry logic, rate limiting, and billing integration. Multiply that by 10 providers and you've spent more time on plumbing than on your actual agent logic. I wanted one endpoint where my agent sends a tool call, pays i