# nine.x420.dev Puff Custom Token Purchase

> nine.x420.dev Puff Custom Token Purchase is a paid API for AI agents from nine.x420.dev, paid per call via x402, $5/call, status unknown (last checked 2026-09-14).

Buy a custom USDC amount worth of Nine tokens (0x3a105f1247B27DED116B5d8dFe3D8e24151c1B07) on the Base network via x402 payment

## Facts

- Endpoint: POST https://nine.x420.dev/api/puff-custom
- Price: $5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nine-x420-dev-206a4578
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AvEaAQ8sINqA7xi7S_tqc

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 nine-x420-dev-206a4578 -d '<json body>'
```

Example prompt: Buy me $10 worth of Nine tokens (0x3a105f1247B27DED116B5d8dFe3D8e24151c1B07) using USDC on the Base network.

## When to prefer this

Use this endpoint when you need to programmatically purchase a specific custom USDC dollar amount of Nine tokens (contract 0x3a105f1247B27DED116B5d8dFe3D8e24151c1B07) on the Base network and want flexible amount control beyond a fixed $5 default. Prefer this over fixed-amount alternatives when the desired purchase size varies per call.

## Known failure modes

- Missing X-PAYMENT header returns 402 with payment requirement details
- Invalid or insufficient USDC payment amount returns payment error
- Amount field not parseable as a numeric string returns validation error
- Swap failure on-chain returns swap transaction hash as null with error message
- Network congestion or timeout after 120 seconds returns timeout error

## How this service works

Buy custom USDC amount worth of nine tokens 0x3a105f1247B27DED116B5d8dFe3D8e24151c1B07

## Output

Returns a confirmation message, the number of Nine tokens received, the USDC amount paid, and the transaction hashes for both the send and swap operations on the Base network.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nine-x420-dev-206a4578/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nine.x420.dev](https://www.zero.xyz/host/nine.x420.dev/llms.txt)