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USD1 Token Purchase - 1 USDC (x420.dev)
x402
USD1 Token Purchase - 1 USDC (x420.dev) is a paid API for AI agents from usd1.x420.dev, paid per call via x402, $1/call, status unknown (last checked 2026-10-16).
Purchases USD1 stablecoin tokens worth 1 USDC on the Base network via the x402 payment protocol, returning token receipt details and transaction hashes.
Price / call$1
Success—
StatusUnknown
How this service works
Buy 1 USDC worth of USD1 tokens 0x618Fb9A538B0f7756648dC9A46f532050c86eb07
Output
Returns a JSON object with a confirmation message, the amount of USD1 tokens received, the USDC amount paid, the send transaction hash (if available), and the swap transaction hash (if available) on the Base network.
Example use cases
Example prompt
“Buy me 1 USDC worth of USD1 stablecoin tokens on x420.dev using the x402 protocol — the USD1 contract address is 0x618Fb9A538B0f7756648dC9A46f532050c86eb07.”
Technical details
Endpoint
GEThttps://usd1.x420.dev/api/puff?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent needs to purchase a small (1 USDC) amount of USD1 stablecoin tokens via the x402 micropayment protocol on the Base network. Prefer this over the 5 USDC sibling endpoint when only a minimal token acquisition is needed or when testing the USD1 token purchase flow.
Side effects
- Insufficient USDC balance — payment of 1 USDC cannot be fulfilled
- Invalid or missing x402 payment header — returns 402 Payment Required
- Smart contract failure during swap — swapTransactionHash may be null
- Network congestion causing transaction delay or timeout
- Wallet address not authorized or misconfigured for x402 payment
Output
Schema · Response
{
"message": "string",
"tokensReceived": "string",
"usdcAmountPaid": "string",
"sendTransactionHash": "string | null",
"swapTransactionHash": "string | null"
}Tags
x402
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