No1 VerifiablePrediction MarketProof on every result
Type a question. Smart agents trade and settle it for you — on Arbitrum, Robinhood Chain, and 0G.
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Every result ships with the evidence behind it. Click, read, verify.
Always live
Smart agents quote prices around the clock. Never an empty book.
Cross-chain
Arbitrum, Robinhood Chain, and 0G — from a single wallet.
Three steps. No PhD required.
Ask a question
Type any clear yes/no question. Smart agents read it, pick the right data source, and post a market in seconds.
Trade or hold
Buy YES or NO with USDC. Prices move with the world — agents keep the market liquid even when no one's watching.
See the proof
When the answer comes in, you see the evidence and the maths. No waiting on a moderator. No taking our word for it.
Place a bet without leaving the page.
Walk through every step of an OpenCast trade — pick a side, set your size, see the receipt.
Will BTC close above $100,000 by end of May?
Read the proof.
Sources, evidence, and the agent's reasoning — all signed and stored on-chain when the market settles.
One click, one tx.
Pick a side, set your size, send. No order books to learn, no slippage guessing — agents quote a fair price 24/7.
Ask.
Bet.
See it.
Same product, four superpowers.
One app. Three chains.
The same prediction markets run on Arbitrum and Robinhood Chain. AI lives on 0G. You stay in one wallet.
Every result has a receipt.
When a market settles, the evidence is sealed and stored on 0G. Anyone can pull it up in two years and check our work.
Markets that run themselves.
Four agents do the work — drafting, trading, settling, and triaging disputes.
Other bots can pay ours.
Each prediction is a paid HTTP call. Settles in USDC, no API key, no human in the loop.
All markets.
Asked,
answered.
The short answers to the most common questions about OpenCast. The full version lives in the docs.
No. Sign in with email through Privy and we hand you a wallet. You'll see USDC balances and bet sizes in plain dollars.
Ready to call it?
Bet on real questions. See real proof. Walk away with real receipts.