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BNB Token Purchase - $5 USDC (x420.dev)
x402
BNB Token Purchase - $5 USDC (x420.dev) is a paid API for AI agents from bnb.x420.dev, paid per call via x402, $5/call, status unknown (last checked 2026-09-15).
Executes a $5 USDC purchase of BNB tokens, returning the tokens received and transaction hashes for the payment and swap.
Price / call$5
Success—
StatusUnknown
How this service works
Buy 5 USDC worth of BNB tokens 0xB61C31F4F336ADC22E5d4C47e1520B34ffeeFb07
Output
Returns a JSON object with a confirmation message, the amount of BNB tokens received, the USDC amount paid, and transaction hashes for both the payment transfer and the on-chain swap (either or both may be null if not yet confirmed).
Example use cases
Rebalance portfolio with BNB
“My portfolio is light on BNB — go ahead and buy $5 worth of BNB using USDC and add it to my wallet 0xB61C31F4F336ADC22E5d4C47e1520B34ffeeFb07.”
Top up BNB for gas fees
“I'm running low on BNB for gas on BNB Chain — swap 5 USDC for BNB and send it straight to my address 0xB61C31F4F336ADC22E5d4C47e1520B34ffeeFb07 so I can keep transacting.”
Convert stablecoin to BNB
“Take 5 USDC from my holdings and convert it into BNB tokens right now — I want the BNB sent to 0xB61C31F4F336ADC22E5d4C47e1520B34ffeeFb07 and give me the transaction details when it's done.”
Technical details
Endpoint
GEThttps://bnb.x420.dev/api/puff-5When to prefer
Use this endpoint when an agent needs to purchase exactly $5 USDC worth of BNB tokens in a single on-chain transaction via the x402 pay-per-call protocol. Prefer this over the $1 variant when the user wants a larger minimum purchase in a single call. Ideal for agents automating crypto portfolio rebalancing or acquiring BNB for gas fees on BNB Chain.
Side effects
- Insufficient USDC balance — payment of 5 USDC cannot be completed
- Network congestion causing swap transaction to fail or timeout
- Invalid or unreachable wallet address
- Liquidity pool slippage causing swap to revert
- x402 payment protocol error if payment header is malformed
- Swap transaction hash may be null if the swap is pending or failed post-payment
Output
Schema · Response
{
"message": "string",
"tokensReceived": "string",
"usdcAmountPaid": "string",
"sendTransactionHash": "string | null",
"swapTransactionHash": "string | null"
}Tags
x402
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