🧪 x402 / MPP Developer Sandbox

Send X-402-Payment Header

Mock Endpoints

POST /api/test/echo ($0.001) GET /api/test/delay?ms=1500 ($0.001) GET /api/test/dynamic-price ($0.005) GET /api/test/error?code=502 ($0.001)

Response Logs

Click an endpoint above to issue an HTTP request...

Vault Manager

Vault results will appear here...