Beil is live on
BNB Smart Chain
Beil is a privacy layer for BNB Chain. Shield BNB or any BEP-20 into a private balance, then send, trade, lend and withdraw without a public trail back to your wallet. Starting today it runs on mainnet.
Open the app →What you can do today
- Shield BNB, USDT, USDC, BTCB, ETH or any other registered BEP-20 into a private balance. It takes one wallet transaction, and it is the last public trace of you.
- Send privately to any
beil1…address. Amounts stay hidden, and when the fee is paid in private WBNB, so does the token. - Trade inside your private balance. The Beil pool swaps through PancakeSwap V2 and V3 in one atomic transaction, so you get its liquidity without your wallet appearing in the trade.
- Earn by lending privately on Venus.
- Withdraw to any address, or to a fresh one-time address only your vault controls.
Inside Beil you never sign with your wallet. A relayer pays the gas and submits each proof, and it never learns whose notes they are.
How it works, briefly
Your private balance is a set of encrypted notes. Every action is a zero-knowledge proof (Groth16 on BN254, 13 public inputs) built in your browser, and the Beil pool contract verifies it with BNB Chain's pairing precompiles before any funds move. Your keys are created and encrypted in the browser and never reach our servers.
Pool contract [address]. The contracts are immutable; the admin is a Safe multisig [multisig address, signers threshold] that can pause and set limits, but no function lets anyone move a note without its owner's proof.
Limits at launch
Beil launches with per-token deposit limits and pool caps [initial caps per token], raised gradually as the pool proves itself. Anyone can register another BEP-20; it starts with default limits until the multisig tunes them.
Fees: 0.3% on shield, withdraw and swap, sent to the treasury. Private sends carry only the relayer fee, which covers gas. Every fee is shown before you confirm, next to the app's own estimate of the network cost.
Invites
Every vault has an invite link. An invited friend can choose to tag one shield with the code; the tag is public on-chain and nothing is tagged unless they tick it. No payout program is live. [if a reward program launches: its terms, or delete this sentence]
Where security stands
- External audit: [auditor, date and report link, or “pending”].
- Trusted setup: single-operator phase-2 setup by the Beil team on top of the PSE Perpetual Powers of Tau, sealed with drand round 6558914. Final proving key sha256 140aaefc7fb8df9cc781b30c03c9b86df98de7f18791b3b21520e08ba27e5440; transcript.
- Tests: [counts from CI] automated checks across six suites, including real proofs replayed against the contracts and fork tests with the real PancakeSwap and Venus.
Live status, test counts and on-chain checks you can run yourself are on the security page.
Try it
Connect MetaMask, Trust Wallet or Binance Wallet, create your vault, and shield a little BNB. Save your recovery key: it's the only way to restore your private balance.
The Beil team