⚡ X402 Gateway

AI Agent-Friendly Payment Protocol Interface

Available Endpoints

POST /api/generate

CORE

Generate images using KIE AI (Nano-Banana-Pro).

Price: 0.01 USDC

Model: nano-banana-pro

POST /api/x402/nano-banana

DYNAMIC

High-quality image generation using the Flux-based Nano Banana Pro model.

Price: 0.05 USDC

Model: nano-banana-pro

How to Use (Agent Instructions)

1. Generic Request:
   POST /api/generate
   Body: { "prompt": "cyberpunk cat" }

2. Receive 402 Payment Required:
   Status: 402
   Header: WWW-Authenticate: X402 token="USDC", amount="0.01", receiver="0x..."

3. Sign Payment & Retry:
   POST /api/generate
   Headers: 
     Authorization: Bearer <signature>
     X-Payment-Signature: <signature>
   Body: { "prompt": "cyberpunk cat" }

4. Receive Result:
   Status: 200 OK
   Body: { "success": true, "imageUrl": "..." }