Most DeFi failures are not zero-days — they are forked parameters nobody re-modelled for a different asset
We model interest curves, collateral factors and liquidation thresholds against your real market depth before a line of Solidity is written
That means the mechanics are defensible to an auditor, an integrator and a risk committee, not just to a testnet
A thin market and a single price feed is the cheapest exploit in the industry
We layer feeds, add TWAP fallbacks, sanity bounds and circuit breakers, and document what the protocol does when a source disagrees
Risk parameters get re-checked when the market backing them changes, not only on the day the protocol launched
Invariants are stated up front and fuzzed, so the tests hunt for the failure instead of confirming the happy path
Auditors receive a threat model, an invariant suite and a documented permission model
They spend their time on real edge cases, which is the only way an audit is worth what you pay for it
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ChainCrafters
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Both. From scratch, we start with the economics — what the protocol is meant to reward and what it must never allow — and design the contract architecture from there. On an existing protocol, we start with a read of the deployed code and the current parameters, then scope changes that can ship without putting live TVL at risk.
The audit itself is done by an independent firm — that independence is the point. What we do is get you audit-ready: invariant tests, fuzzing, a documented threat model and an internal pre-audit review, so the auditors spend their time on real edge cases instead of obvious findings. We then handle remediation and re-review with the audit team.
Ethereum and the major EVM L2s (Arbitrum, Base, Optimism, Polygon) are routine, and we work in Rust for Solana-style environments. Chain choice is a design input rather than a preference: gas profile, oracle availability and existing liquidity all change what mechanics are viable, so we settle it during scoping.
As a system, not a checkbox. That means layered price sources with TWAP fallbacks, sanity bounds and circuit breakers, liquidation thresholds modelled against the real depth of your collateral markets, and keeper incentives that stay profitable in the exact conditions where liquidations matter most.
A focused module — a staking contract, a vault strategy — typically runs 4 to 6 weeks including tests. A full lending market or AMM with its own frontend and indexing layer is closer to 3 to 5 months before audit. Every engagement starts with a strict scoping phase, so the timeline is realistic before production begins.
