What is Mouth?
Mouth is a PvP prediction market protocol built on Base with native X (Twitter) integration. Every day, people on X make bold predictions, challenge others, and debate outcomes — but there’s no way to back those words with real stakes. Mouth changes that. Mouth lets anyone create PvP bets directly from X or from the Mouth web app, deposit funds into a trustless escrow smart contract, and settle the outcome for real money. The name comes from the expression “Put your money where your mouth is” — and that’s exactly what the protocol enables.Core Concept
Mouth is NOT a traditional prediction market with order books or liquidity pools. It’s a peer-to-peer, fixed-amount prediction escrow:- Player A makes a claim and puts money behind it
- Player B takes the other side for the same amount
- At expiration, the market is resolved and the winner takes the pot (minus a small protocol fee)
PvP vs Open PvP Bets
Mouth supports two bet modes:- PvP bet — 1v1 between two specific X accounts. Only the named opponent can accept.
- Open PvP Bet — Anyone can take the other side, even multiple opponents can each fill a portion of the total amount. For example, a $1,000 Open PvP Bet could be filled by 2 people ($400 + $600).
Key Features
PvP Bets
1-on-1 fixed-amount bets between two parties. Just you vs them.
X-Native
Create predictions by tagging @MouthBet on X. Or use the web app directly.
Trustless Escrow
Every prediction’s funds are safely held in a smart contract until resolution.
Embedded Wallets
Sign in with your X account via Privy. Deposit USDC and bet gasless.
How It’s Different
| Other Prediction Markets | Mouth | |
|---|---|---|
| Model | Multi-participant orderbook | PvP 1-on-1 or 1-on-Many |
| Complexity | AMM, liquidity, shares | Fixed amount, two sides |
| Social | No social integrations | X-native, bets from tweets |
| Identity | Pseudonymous wallets | X profile linked |
| Onboarding | Register/Connect wallet | Login with X |