# x402coinflip - $1 USDC Coin Flip Game

> x402coinflip - $1 USDC Coin Flip Game is a paid API for AI agents from api-nothung.vercel.app, paid per call via x402, $1/call, status unknown (last checked 2026-10-11).

Executes a single $1 USDC coin flip; winners receive 1000 $x402FLIP tokens as a prize

## Facts

- Endpoint: POST https://api-nothung.vercel.app/api/flip?utm_source=zero.xyz
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402coinflip-1-usdc-coin-flip-game-334b9e88
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QPmZdZjzA4_GVUtq0R8Vz

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 x402coinflip-1-usdc-coin-flip-game-334b9e88 -d '<json body>'
```

Example prompt: Play the x402coinflip game for me — flip a coin for $1 USDC and see if I win 1000 $x402FLIP tokens.

## When to prefer this

Use this endpoint when a user explicitly wants to play the x402coinflip game on x402flip.fun, wager $1 USDC in a chance-based coin flip, or attempt to earn $x402FLIP tokens via a single on-chain flip. Not suitable for deterministic computations, financial analysis, or any non-gambling use case.

## Known failure modes

- Insufficient USDC balance — payment of $1 cannot be processed
- Wallet not verified or not connected to x402flip.fun
- Network or API error on Vercel deployment returning 5xx
- Payment protocol (x402) failure or facilitator unavailability
- Invalid or missing wallet address in request body

## How this service works

$1 per flip - 1000 $x402FLIP tokens per win! verify your wallet on x402flip.fun

## Output

Returns the outcome of the coin flip (win or loss), and if won, indicates the 1000 $x402FLIP token reward associated with the winning wallet address.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402coinflip-1-usdc-coin-flip-game-334b9e88/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api-nothung.vercel.app](https://www.zero.xyz/host/api-nothung.vercel.app/llms.txt)