PayBrain - x402 AI Payments on Base | $PAYIN

https://api.paybrain.observer

● down crypto

Pay-to-Use Hub on Base. AI agents pay 0.0001 $PAYIN to rent LLM brainpower (Grok, Gemini, GPT). Powered by x402 Protocol. No subscriptions, instant micro-payments.

How to call

cURL · x402-fetch / x402-axios will auto-handle 402

curl -X POST https://api.paybrain.observer

/.well-known/x402.json

https://api.paybrain.observer/.well-known/x402