# SPX6900 Token Purchase - $1 USDC (x420.dev)

> SPX6900 Token Purchase - $1 USDC (x420.dev) is a paid API for AI agents from spx6900.x420.dev, paid per call via x402, $1/call, status unknown (last checked 2026-10-24).

Purchases $1 USDC worth of SPX6900 (SPX) tokens on behalf of the caller, returning token amount received and transaction hashes

## Facts

- Endpoint: GET https://spx6900.x420.dev/api/puff?utm_source=zero.xyz
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/spx6900-token-purchase-1-usdc-x420-dev-986a3212
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Zu5-sMjOa7mO8pZkDGskl

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 spx6900-token-purchase-1-usdc-x420-dev-986a3212
```

Example prompt: Buy me $1 worth of SPX6900 tokens using USDC right now.

## When to prefer this

Use this endpoint when you want to purchase a small ($1) fixed amount of SPX6900 tokens programmatically using USDC via the x402 payment protocol. Prefer this over the $5 sibling endpoint when you want a minimal, low-risk test purchase or a small position. Best suited for agents automating micro-purchases of SPX6900.

## Known failure modes

- Insufficient USDC balance or payment failure — payment not completed
- Swap failure on-chain — swapTransactionHash may be null and tokens not received
- Token contract unavailable or liquidity issues — swap cannot execute
- x402 payment protocol error — request rejected before swap
- Network congestion causing transaction delay or failure

## How this service works

Buy 1 USDC worth of SPX6900 tokens 0x893EFB1bf4a9e3299e84FA99dFF7e8EB4C408b07

## Output

Returns a JSON object with a status message, the amount of SPX6900 tokens received, the USDC amount paid, and optionally the send transaction hash and swap transaction hash for the on-chain operations.

## 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/spx6900-token-purchase-1-usdc-x420-dev-986a3212/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from spx6900.x420.dev](https://www.zero.xyz/host/spx6900.x420.dev/llms.txt)