npm install uvd-x402-sdk

// Client: Create payment with any stablecoin
import { createPayment } from "uvd-x402-sdk";

const payment = await createPayment(wallet, {
  recipient: "0xYourWallet",
  amount: "10.00",
  tokenType: "eurc"  // usdc | eurc | ausd | pyusd
});

// Server: Verify payment
import { verifyPayment } from "uvd-x402-sdk";

const result = await verifyPayment(
  request.headers["X-PAYMENT"],
  { maxPrice: "10.00", recipient: "0xYourWallet" }
);

pip install uvd-x402-sdk

# Query multi-stablecoin support
from uvd_x402_sdk import get_supported_tokens, get_token_config

tokens = get_supported_tokens("ethereum")
# ['usdc', 'eurc', 'ausd', 'pyusd']

eurc = get_token_config("base", "eurc")
# TokenConfig(address="0x60a3...", decimals=6)

# Server: Verify payment
from uvd_x402_sdk import verify_payment

result = verify_payment(
    request.headers["X-PAYMENT"],
    recipient="0xYourWallet",
    max_price="10.00"
)