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ProofBridge works with one wallet per chain:
  • EVM (Sepolia): MetaMask, Rainbow, or any RainbowKit-supported wallet
  • Stellar (Testnet): Freighter and other Stellar Wallets Kit wallets
Wallet connection hub

The wallet hub — connect one or both chains

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Which wallets do you need?

The wallet of the chain you deposit from is required. Connecting both is recommended:
  • as a bridger, your deposit wallet is on the order chain and your destination address is on the other chain
  • as a maker, your liquidity lives on the ad chain and you receive on the order chain

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Sign in

Connecting prompts a one-time login signature (a challenge — no transaction, no gas). Linking your second wallet ties both to the same account so the app can show all your trades and sponsor key-registration gas for either.
Login challenge signature

Login signature prompt

Each trading wallet also needs a one-time settlement key registration before it can complete trades — the app prompts you at the right moment, or do it up front on the BLS Keys page.