# TEST TOKEN (TEST) x420.dev - Buy 5 USDC

> TEST TOKEN (TEST) x420.dev - Buy 5 USDC is a paid API for AI agents from test.x420.dev, paid per call via x402, $5/call, status unknown (last checked 2026-10-17).

Purchases 5 USDC worth of TEST tokens (0xb2410D63B28E842f94D6F29057ca66bCd7c96b07) on behalf of the caller via x402 payment protocol

## Facts

- Endpoint: GET https://test.x420.dev/api/puff-5?utm_source=zero.xyz
- Price: $5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/test-token-test-x420-dev-buy-5-usdc-dd67dd6c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8dFG1QODklYputCJBsgqK

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 test-token-test-x420-dev-buy-5-usdc-dd67dd6c
```

Example prompt: Buy 5 USDC worth of TEST tokens on x420.dev for me — use the x402 payment protocol to execute the swap and give me the transaction details.

## When to prefer this

Use this endpoint when you specifically want to purchase 5 USDC worth of TEST tokens via the x402 payment protocol on x420.dev. Prefer this over the 1 USDC variant when you want a larger token purchase in a single call. Best suited for agents operating in DeFi or crypto contexts that support x402 micropayment flows.

## Known failure modes

- Insufficient USDC balance to cover the 5 USDC payment — payment rejected
- x402 payment protocol failure — no transaction initiated
- Token swap fails on-chain — swapTransactionHash may be null with error message
- Network congestion causing transaction timeout
- Contract address unreachable or paused — swap cannot complete

## How this service works

Buy 5 USDC worth of TEST tokens 0xb2410D63B28E842f94D6F29057ca66bCd7c96b07

## Output

Returns a confirmation message, the amount of TEST tokens received, the USDC amount paid, and optionally a send transaction hash and a swap transaction hash for on-chain verification.

## 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/test-token-test-x420-dev-buy-5-usdc-dd67dd6c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from test.x420.dev](https://www.zero.xyz/host/test.x420.dev/llms.txt)