Frequently Asked Questions

An event contract is a yes/no instrument on the outcome of a real-world event. Each contract pays out $1 if the outcome happens — for example, a specific flight arrives more than the threshold number of minutes late — and $0 if it does not. The price between 1¢ and 99¢ is the market-implied probability of the outcome.

When you deposit, you fund a USDT balance — the money you trade with. The “Token” referred to in our Token Terms is an event-contract token, also called a share: it is what you hold when you take a side in a market. Each token is a utility-like instrument that pays $1 if its outcome happens and $0 if it does not. You spend from your USDT balance to buy tokens, and winning tokens settle back into your USDT balance. These tokens are not securities, e-money, or a stake in GADUIN; a token has no value outside the market it belongs to, and its settlement value comes solely from how the referenced event resolves against the committed public data source.

GADUIN is operated from Panama. It is not registered with, or licensed by, any securities or derivatives regulator. The service is not available to US persons or to residents of restricted jurisdictions — access is blocked before account creation. Always review your local laws before participating. Trading event contracts carries risk — you can lose the full amount you stake, and nothing on GADUIN is investment advice.

A sportsbook quotes fixed odds and acts as your counterparty — when you win, the book loses. GADUIN is an exchange: prices are set by what other participants are willing to pay for an outcome, and every market settles from a publicly verifiable data source rather than a referee's call. The house never takes the other side of your trade or profits when you lose.

Yes. Every action available in the UI — listing markets, placing trades, checking balances, withdrawing — is also exposed over REST with the same authentication. We also publish an MCP (Model Context Protocol) server so Claude Desktop or any MCP-compatible agent can act on your behalf with scoped credentials.

Click "Sign up" in the top right and provide your email. We'll send a magic link — click it to complete sign-in. You'll then be asked to confirm a few details about yourself before placing your first trade.

Go to Account → Wallet → Security and click "Enable two-factor auth". You'll scan a QR code with any RFC-6238 TOTP app (Google Authenticator, 1Password, Authy) and save 10 single-use backup codes.

Use one of your saved backup codes on the challenge page. If you've lost those too, contact support — we'll verify your identity manually before disabling 2FA.

From your Account → Wallet tab, click "Deposit" and send USDT (ERC-20) on Ethereum to the address we generate. Funds appear in your balance after the network confirms the transaction.

GADUIN doesn't charge a deposit fee. You'll pay the standard network gas fee to your wallet provider when you broadcast the transaction.

There's no fixed minimum, but very small deposits may be uneconomical once network fees are factored in. We recommend at least $5 USDT per deposit.

GADUIN supports USDT (ERC-20) on Ethereum only. Native USDT only — wrapped or bridged variants will not credit your balance.

Add a destination address in Account → Wallet → Saved addresses, then click "Withdraw", pick the saved address, enter an amount, and confirm. Withdrawals are processed on the same network you originally deposited from.

Most withdrawals are broadcast within a few minutes. Ethereum confirmation typically takes 1–3 minutes after broadcast.

Regulation requires us to confirm that the destination wallet is under your control and not held on behalf of any U.S. person or sanctioned party. The attestation is a one-time per-address declaration.

Every outcome has a price between 1¢ and 99¢ that reads as its chance of happening. Market makers quote those prices, and they move as people trade — buying an outcome nudges its price up — so there's always a live price to trade against.

A YES share priced at 62¢ means the market believes there is a 62% chance the event happens. If you buy it and the event occurs, you receive $1 — a 38¢ profit per share. If it does not, you receive $0. Prices move continuously as new trades shift the implied probability.

Markets close before the underlying event (e.g., a flight's scheduled boarding time). After closing, no new trades are accepted. The market waits for the settlement data, then resolves automatically.

Yes — trades must be at least $1. There's no fixed maximum, but very large orders fill at a progressively higher average price, so the bigger the order the more the price moves as you buy.

Each market locks to a public data source and query at activation. The data source and query are fixed at that point and cannot be changed after trades are placed. After the event, our ingest pipeline pulls the result and resolves the market.

Flight markets settle from public ADS-B telemetry collected by the OpenSky Network, cross-referenced against scheduled departure times from FlightAware and AeroDataBox. The exact data source and query parameters are committed into the market at activation and shown on the market page — they cannot be changed after trades are accepted.

If we can't determine the outcome unambiguously (the flight was cancelled, the API returned no data, conflicting reports), the market goes into a DISPUTED state and a human reviewer resolves it within 24 hours.

Winning shares pay out automatically at $1 each as soon as the market settles. The payout appears in your Transfers list.