# df.x420.dev Puff Custom - Buy DF Tokens with USDC

> df.x420.dev Puff Custom - Buy DF Tokens with USDC is a paid API for AI agents from df.x420.dev, paid per call via x402, $5/call, status unknown (last checked 2026-09-15).

Purchase a custom USDC amount worth of DF tokens (0x3077c5e15F8BD67F05f73b4dC49a507543FF0b07) on-chain, with the swap executed automatically.

## Facts

- Endpoint: POST https://df.x420.dev/api/puff-custom
- Price: $5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/df-x420-dev-b8cac240
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5GTre_hCyZPnMBKs1q6Ic

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 df-x420-dev-b8cac240 -d '<json body>'
```

Example prompt: Buy me 10 USDC worth of DF tokens (the one at contract 0x3077c5e15F8BD67F05f73b4dC49a507543FF0b07) right now.

## When to prefer this

Use this endpoint when an agent needs to programmatically purchase a specific USDC-denominated amount of DF tokens (contract 0x3077c5e15F8BD67F05f73b4dC49a507543FF0b07) and wants full control over the spend amount rather than a fixed preset amount. Prefer this over fixed-amount alternatives when the desired purchase size varies per call.

## Known failure modes

- Invalid or non-numeric amount string causes rejection
- Insufficient USDC balance or payment failure returns error
- On-chain swap failure results in null transaction hashes or error message
- Amount below minimum threshold (e.g. less than 0.01 USDC) may be rejected
- Network congestion or RPC failure may delay or fail the swap

## How this service works

Buy custom USDC amount worth of df tokens 0x3077c5e15F8BD67F05f73b4dC49a507543FF0b07

## Output

Returns a message confirming the purchase, the number of DF tokens received, the USDC amount paid, and optionally a send transaction hash and swap transaction hash for on-chain verification.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/df-x420-dev-b8cac240/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from df.x420.dev](https://www.zero.xyz/host/df.x420.dev/llms.txt)