x402 Protocol Demo

This API costs $0.001 per request

Pay with USDC on Stellar testnet. No API keys, no accounts — just pay and get the data.

$0.001

per request

< 5s

settlement

Testnet

Stellar + OZ

Claude Code Skill

x402 Engineer

A skill pack that teaches Claude Code how to add x402 micropayments to any API endpoint. Install this Claude Code skill by running: npx x402-engineer install

Or paste this URL in Claude Code

https://x402-stellar-demo.vercel.app/install
Full guide: commands, frameworks & workflow →

Try it

Protocol Flow

W
Wallet
C
Client
S
Server
F
Facilitator
Request
402 Received
Sign
Pay & Send
Verify
Settled
200 OK

Click a completed step to see details