I built a pay-per-search API discovery engine — no API keys, just crypto (x402)

AI agents are getting good at calling APIs. The problem is they still need a human in the loop to find the right API, sign up for an account, generate a key, fund a balance, and paste credentials into a config file. That's fine for a one-time integration — but it's a complete non-starter for an autonomous agent that needs to discover and use new APIs on the fly. I wanted to fix that. Here's what I built. ## The problem When an agent needs a capability it doesn't have — weather data, image generation, price feeds, web scraping — it has no good way to go find a paid API on its own. Every API monetization model today assumes a human is doing the signup. There's no standard way for a machine to say "I want this capability, here's payment, give me the result." That's the gap I'm trying to close. ## What is x402? x402 is an open protocol that brings the [HTTP 402 Payment Required](https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/402) status code to life. When a client hits an x402-en