# x420 Token Purchase - 1 USDC

> x420 Token Purchase - 1 USDC is a paid API for AI agents from x420.x420.dev, paid per call via x402, $1/call, status unknown (last checked 2026-10-20).

Purchases exactly 1 USDC worth of x420 tokens (contract 0x68e284F21D04D4D62398C290EC3EF41C97F80b07) and returns transaction details

## Facts

- Endpoint: GET https://x420.x420.dev/api/puff?utm_source=zero.xyz
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x420-x420-dev-367e0c8a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fBGxfF_YPf7aIuqP6qHOi

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability x420-x420-dev-367e0c8a
```

Example prompt: Buy me 1 USDC worth of x420 tokens on x420.x420.dev right now.

## When to prefer this

Use this endpoint when an agent needs to purchase exactly 1 USDC worth of x420 tokens in a single atomic call. Prefer this over the 5 USDC or custom amount endpoints when the user wants a minimal fixed spend. This is the lowest-cost fixed-denomination option on the x420 platform.

## Known failure modes

- Insufficient USDC balance — payment fails and no tokens are received
- Smart contract swap failure — send hash present but swap hash null
- Network congestion or RPC error — transaction not broadcast
- Invalid or expired x402 payment — endpoint rejects with payment error
- Slippage too high — swap reverts on-chain

## How this service works

Buy 1 USDC worth of x420 tokens 0x68e284F21D04D4D62398C290EC3EF41C97F80b07

## Output

Returns a message confirming the purchase, the amount of x420 tokens received, the USDC amount paid, and the on-chain transaction hashes for both the USDC send and the token swap (either or both may be null if not yet confirmed).

## Response schema (JSON Schema)

```json
{
 "message": "string",
 "tokensReceived": "string",
 "usdcAmountPaid": "string",
 "sendTransactionHash": "string | null",
 "swapTransactionHash": "string | null"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x420-x420-dev-367e0c8a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x420.x420.dev](https://www.zero.xyz/host/x420.x420.dev/llms.txt)