# poor (pr) Token Purchase - x420.dev (1 USDC)

> poor (pr) Token Purchase - x420.dev (1 USDC) is a paid API for AI agents from pr.x420.dev, paid per call via x402, $1/call, status unknown (last checked 2026-10-29).

Purchases 1 USDC worth of 'pr' (poor) tokens on-chain and returns transaction details including tokens received and transaction hashes

## Facts

- Endpoint: GET https://pr.x420.dev/api/puff?utm_source=zero.xyz
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/poor-pr-token-purchase-x420-dev-1-usdc-436fcc89
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ujfgOruwvC5htf7CXZ_RT

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 poor-pr-token-purchase-x420-dev-1-usdc-436fcc89
```

Example prompt: Buy me 1 USDC worth of poor (pr) tokens on x420.dev — I want to spend exactly 1 USDC and get back however many pr tokens that gets me right now.

## When to prefer this

Use this endpoint when an agent needs to purchase exactly 1 USDC worth of pr (poor) tokens on x420.dev via the x402 payment protocol. Prefer the sibling 5 USDC endpoint if a larger purchase is desired. This is the smallest denomination purchase available for this token.

## Known failure modes

- Insufficient USDC balance — payment of 1 USDC cannot be fulfilled
- x402 payment protocol failure — payment header rejected or missing
- On-chain swap failure — swapTransactionHash is null, tokens not received
- Network congestion or RPC failure causing transaction timeout
- Token contract unavailable or liquidity insufficient for swap
- sendTransactionHash null indicating funds not sent on-chain

## How this service works

Buy 1 USDC worth of pr tokens 0x87f0c380Dae2d33264350cf5307E765B123deB07

## Output

Returns a JSON object with a status message, the number of pr tokens received, the USDC amount paid, the send transaction hash (or null), and the swap transaction hash (or null) confirming the on-chain purchase.

## 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/poor-pr-token-purchase-x420-dev-1-usdc-436fcc89/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from pr.x420.dev](https://www.zero.xyz/host/pr.x420.dev/llms.txt)