Contracts Built Audit-Proof

Probably not — and we'll tell you that upfront. Blockchain makes sense when multiple untrusting parties need to agree on shared state without a central authority, or when you need cryptographic proof of ownership or execution. If a PostgreSQL database with access controls solves your problem, we'll recommend that and build it. We start every blockchain engagement with a free, honest feasibility session.

It depends on your users, transaction volume, and fee tolerance. Ethereum mainnet for maximum decentralization and credibility — best for high-value DeFi. Polygon or Arbitrum for cheap, fast transactions with EVM compatibility. Base for Coinbase ecosystem reach. Solana for high-throughput consumer apps. We give you a concrete chain recommendation with rationale during the architecture phase — no generic 'it depends' answer.

Security is built in from the start, not bolted on. We use OpenZeppelin security libraries, Slither and Mythril static analysis on every contract, 95%+ unit test coverage targeting known attack vectors (reentrancy, flash loans, integer issues, access control), and an internal audit report before any mainnet deployment. For protocols handling significant TVL, we also prepare the codebase for external audit by a third-party security firm.

A simple smart contract with frontend integration — 4 to 8 weeks. A full DeFi protocol, NFT marketplace, or token launch with proper security review — 10 to 16 weeks. Complex multi-contract systems with governance, upgradeability, and external oracle integration — 16 to 24 weeks. We give you a week-by-week delivery plan in the first meeting.

Every operation on an EVM chain costs gas — a fee proportional to computation and storage. Poorly written contracts can cost users $50–$200 per transaction, making the product economically unusable. We profile gas on every public function, pack storage variables, minimize on-chain state, and use calldata over memory where possible. The result: 2–5x cheaper transactions vs unoptimized contracts.

A single audited smart contract with frontend integration typically runs $15K–$40K. A full DeFi protocol, NFT marketplace, or token launch lands in the $50K–$150K range depending on complexity and audit scope. Multi-contract systems with governance, upgradeability, and oracle integration go higher. We quote a fixed scope with milestone-based payments after the architecture phase — no open-ended hourly surprises.

Yes — you own 100% of the source code, contracts, and deployment infrastructure outright. We hand over the full Git repository, deployer keys, Etherscan verification, and complete documentation on delivery. There is no vendor lock-in, no licensing fees, and no dependency on us to operate, upgrade, or migrate your protocol later.

Every engagement includes 30 days of direct engineer access post-launch — the highest-risk window for any deployment. We set up on-chain monitoring with anomaly alerts and subgraph indexing for event history, and stay on-call for incident response. Beyond 30 days, we offer ongoing monitoring and maintenance retainers for protocols that want continuous coverage.