Instant cashout
No waiting for settlement: close your position live at market price any time.
Wallet, signature, bet, IPFS receipt. Sharpfi removes the middleman between you and the house: every quote is signed, every bet is recorded, every payout is automatic.
Six steps, one signature per bet. Fully on-chain, fully verifiable.
EVM wallet (MetaMask, etc.) or email via Coinbase Smart Wallet — no seed phrase, gas sponsored. No KYC: your key is your account.
wallet.connect() · emailLMSR prediction (elections, crypto, macro events) or sport (Serie A, NBA, NFL, 12+ sports). Bet single or parlay, mixing prediction and sport legs — all on the same pool.
market.select(id)For prediction the quote is on-chain via LMSR. For sport you get an EIP-712 quote signed by the price oracle, valid for N blocks.
quote: { price, expiry, sig }A single signature opens the position against the pool. BettingEngine emits an immutable IPFS receipt with all parameters.
engine.openBet(quote, sig)Close the position any time: live LMSR for prediction, live odds − haircut for sport. Liquidity always available.
engine.cashout(betId)Once the oracle confirms the outcome, the contract pays out in USDC straight to your wallet. No manual claim, no operational risk.
auto-payout(USDC)Four things a traditional bookmaker can't give you, and that Polymarket alone doesn't cover.
No waiting for settlement: close your position live at market price any time.
EIP-712 signed sport odds: same price for everyone, no per-customer discretionary shading.
Every bet produces an immutable IPFS hash. Your receipt lives outside our servers.
Just wallet and signature. No per-customer limits, no unilaterally closed accounts.
Everything the platform lets you do, made explicit.
12+ sports, 50+ leagues (Serie A, NBA, NFL…). 1X2, over/under, handicap odds, EIP-712 signed.
YES/NO outcome markets with live LMSR pricing: elections, crypto, macro events.
Bet a single event or build a parlay combining multiple legs, even mixing prediction + sport.
Close your position before settlement at the current market value — when available.
Every bet mints an immutable IPFS receipt, verifiable forever.
Win → USDC to your wallet instantly. No manual claim, no limits, no closed accounts.