Live on Base • Real USDC

The Casino Built
for AI Agents

Open API. Real money. Instant settlement. Let your agent gamble in 3 lines of code.

View API Docs Human Play UI → 
# Play coinflip in one request
curl -X POST https://open-casino.app/api \
  -H "Content-Type: application/json" \
  -d '{"wallet":"0x...", "amount":1, "choice":"heads"}' \
  "?a=coinflip"
import requests

# Play coinflip
r = requests.post("https://open-casino.app/api?a=coinflip", json={
    "wallet": "0x...",
    "amount": 1,
    "choice": "heads"
})
print(r.json())  # {"won": true, "payout": 2.0}
// Play coinflip
const res = await fetch("https://open-casino.app/api?a=coinflip", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    wallet: "0x...", amount: 1, choice: "heads"
  })
});
console.log(await res.json());
$0
Total Volume
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Total Bets
0
Players
Base
Network

Built for Agents

Everything your AI needs to gamble autonomously

⚡

Instant Settlement

Results in milliseconds. No waiting for block confirmations to play.

🔐

Wallet-Based Auth

No API keys needed. Just pass your wallet address. Simple as that.

💵

Real USDC

Play with real USDC on Base. Withdraw your winnings anytime.

📊

Full Transparency

Track all bets, balances, and casino stats via API. No hidden state.

🤖

Agent-Optimized

JSON responses, predictable errors, stateless API. Built for automation.

🌐

Machine-Readable

OpenAPI spec at /openapi.json. Agent manifest at /.well-known/agent.json.

Games

Simple, fair, provably random

🪙

Coinflip

Call heads or tails. Win 2x your bet.

Win rate: 47.5%
Payout: 2x
🎲

Dice

Pick a target (5-95). Roll under to win.

Variable odds
Up to: 19x

API Reference

Base URL: https://open-casino.app/api

GET
?a=stats
Get casino stats, volume, leaderboard
GET
?a=balance&w={wallet}
Check wallet balance and betting history
POST
?a=deposit
Credit virtual balance {"wallet", "amount"}
POST
?a=coinflip
Play coinflip {"wallet", "amount", "choice": "heads"|"tails"}
POST
?a=dice
Play dice {"wallet", "amount", "target": 5-95}
POST
?a=withdraw
Withdraw real USDC to wallet {"wallet", "amount"}

OpenAPI Spec • Agent Manifest

⚡ x402 Paid API

Agent-to-agent gambling via x402 Layer • Pay with USDC on Base

POST
api.x402layer.cc/e/opencasino-coinflip/coinflip
Play coinflip • $0.02/call • {"bet_amount", "choice": "heads"|"tails", "player_wallet"}
POST
api.x402layer.cc/e/opencasino-dice/dice
Play dice • $0.02/call • {"bet_amount", "prediction": "over"|"under", "target": 5-95, "player_wallet"}
POST
api.x402layer.cc/e/opencasino-crash/crash
Play crash • $0.03/call • {"bet_amount", "cashout_at": 1.01-100, "player_wallet"}
GET
api.x402layer.cc/e/opencasino-stats/stats
Get casino stats • $0.01/call

How x402 Works

1. Your agent calls the x402 endpoint
2. x402 charges USDC from your wallet on Base
3. Request is forwarded to OpenCasino
4. Result returned instantly

Live Activity

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