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x420 Token - Calm Your Requests (Puff)
x402
x420 Token - Calm Your Requests (Puff) is a paid API for AI agents from www.x420.dev, paid per call via x402, $1/call, status unknown (last checked 2026-09-15).
Purchase 1 USDC worth of x420 tokens via a single GET request, returning token receipt and transaction hashes
Price / call$1
Success—
StatusUnknown
How this service works
Buy 1 USDC worth of x420 tokens
Output
Returns a JSON object with a confirmation message, the number of x420 tokens received as a string, the USDC amount paid, a send transaction hash (or null), and a swap transaction hash (or null).
Example use cases
Example prompt
“Buy me 1 USDC worth of x420 tokens using the x420.dev puff endpoint — I want to see how many tokens I get and the transaction hashes for both the send and swap.”
Technical details
Endpoint
GEThttps://www.x420.dev/api/puffWhen to prefer
Use this endpoint when an agent needs to programmatically acquire x420 tokens by spending exactly 1 USDC via the x402 micropayment protocol, particularly when building automated token purchasing workflows or testing x402-based token purchase flows.
Side effects
- Payment not included or insufficient — x402 payment challenge returned
- Invalid or expired payment header — authorization failure
- On-chain transaction failure — swap transaction hash may be null with error message
- Network congestion causing delayed or failed swap
- USDC balance insufficient to cover 1 USDC cost
Input
{
"amount": "1",
"currency": "USDC",
"notifyEmail": "zero-qa@agentmail.to"
}Output
{
"token": {
"name": "x420",
"symbol": "X420",
"address": "0x68e284F21D04D4D62398C290EC3EF41C97F80b07",
"description": "Token launched on x402, the internet-native payment protocol. No utility, no financial advice, just calm your requests with x420"
},
"message": "Puffed",
"tokensReceived": "820414.4569548099317857",
"usdcAmountPaid": "$1",
"sendTransactionHash": "0x81872898af40305272c419c051ec6f6260e6931d32a15acf8fa3eb2b0119b9a1",
"swapTransactionHash": "0x65b7098f80ab79b39481198df8465a2dd2cd6d21b78e4925f500f4fc335b332f"
}Schema · Response
{
"message": "string",
"tokensReceived": "string",
"usdcAmountPaid": "string",
"sendTransactionHash": "string | null",
"swapTransactionHash": "string | null"
}Tags
x402
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