BBBFi TapeGuard
Noncustodial swaps. Verifiable transaction limits.
Built for individual traders and community treasury operators who want explicit trade limits. Users sign their own transactions; the pool executes the swap; a real TapeOut circuit evaluates the on-chain policy.
Try the live circuit
These switches are independent circuit test inputs, not wallet or transaction status. Each change calls TapeOut eval on X Layer. During an actual swap, the guard computes all four inputs from on-chain state.
What is new
Development began on 16 October 2026: the existing BBBFi V2 DEX is extended to X Layer with a dedicated TapeOut processor, a six-NAND circuit and an immutable guarded swap entry point. The circuit outputs 1 only when all four conditions pass.
- Every swap reads current pool reserves. Fee-inclusive impact limits: 1%, 3% or 5%.
- Minimum output and a 0.5% slippage boundary are included in calldata; the guard caps permitted slippage at 1%.
- Quotes expire after 30 blocks; deadlines cannot exceed 10 minutes; at least 0.0001 OKB must remain.
- The netlist and circuit implementation identity are pinned. Changes to the third-party TapeOut implementation stop execution.
Mainnet identities & verification
| V2 Factory | 0xBeF275FA7E1bf43Fc80d5Bd11b3369496Ad4530A |
|---|---|
| OKB Router | 0xEA34885369cC31c673544Ac733759282dFbFC67D |
| TapeGuard | 0x39f7711e3f4f866849B39127ba1dF099924cb9aF |
| TapeOut processor | 0x9de448A1CE9537d24199B3b5355239d73aA6F591 |
Chain ID 196 · TapeOut CPU #340 · Circuit #1. Source, runtime hashes, the complete truth table, deployment transactions and reproducible tests are published in the project repository.
Treasury runway & business validation
The new Treasury runway tool reads existing Uniswap V3 liquidity, simulates full and quarter-sized conversions at one block, calculates buffered USDC output and operating runway, and exports a report. TapeOut combines route, impact, spending coverage and freshness predicates supplied by the application; it does not attest market facts. This tool does not require liquidity in BBBFi pools.
The manual report pricing direction is discontinued. New BBBFi Access provides USDC checkout, bounded renewals, cancellation/refunds and server-side access verification for websites and APIs. Successful payments charge 1%; renewals allocate 0.2% to the executor and 0.8% to the protocol. There is no established evidence of independent paid customers or profitability.
Market review, operating costs and validation plan →
Current limits
New BBBFi pools are not automatically funded, so unfunded pools have no executable quotes. The full swap flow is verified on a local X Layer mainnet fork, not claimed as a mainnet trade. Pool-relative impact is not a market-price oracle. The policy does not detect scams, token administrators or all MEV risks. Transfer-tax tokens are unsupported. Tests and runtime matching are not an independent security audit.