Base64 in both directions, including the URL-safe alphabet, with UTF-8 handled properly. Encoding is what carries payloads through headers and JSON, and x402 itself rides on it.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.005000 USDC | 0xc210...e9Ff |
| Polygon | exact | $0.005000 USDC | 0xc210...e9Ff |
| Arbitrum One | exact | $0.005000 USDC | 0xc210...e9Ff |