# Base Token Purchase - 1 USDC (x420.dev)

> Base Token Purchase - 1 USDC (x420.dev) is a paid API for AI agents from base.x420.dev, paid per call via x402, $1/call, status unknown (last checked 2026-09-15).

Spends 1 USDC to buy Base tokens (0x5458109C0d5236a05630c0e99e69500B111DaB07) on the Base network via a paid API call

## Facts

- Endpoint: GET https://base.x420.dev/api/puff
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/base-token-purchase-1-usdc-x420-dev-3f8db66d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NGHBddM7Eor07FUHQ2bQh

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 base-token-purchase-1-usdc-x420-dev-3f8db66d
```

Example prompt: Can you buy 1 USDC worth of Base tokens (contract 0x5458109C0d5236a05630c0e99e69500B111DaB07) on the Base network for me right now?

## When to prefer this

Choose this endpoint when an agent needs to programmatically purchase exactly 1 USDC worth of a specific Base network token (0x5458109C0d5236a05630c0e99e69500B111DaB07) in a single API call. Prefer the sibling 5 USDC endpoint when larger purchase amounts are needed. Best for automated, low-denomination token acquisition workflows where on-chain transaction receipts are required.

## Known failure modes

- Insufficient USDC balance to cover the 1 USDC payment cost
- Payment authorization failure via x402 protocol
- Swap execution failure due to low liquidity or slippage
- Invalid or unresolvable token contract address
- Network congestion on Base chain causing timeout
- Transaction hash returned as null if on-chain confirmation is delayed

## How this service works

Buy 1 USDC worth of Base tokens 0x5458109C0d5236a05630c0e99e69500B111DaB07

## Output

Returns a JSON object with a confirmation message, the amount of tokens received, the USDC amount paid, a send transaction hash, and a swap transaction hash (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/base-token-purchase-1-usdc-x420-dev-3f8db66d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from base.x420.dev](https://www.zero.xyz/host/base.x420.dev/llms.txt)