Smart contracts and Web3 systems built to be audited.

We build and audit Solidity smart contracts, DeFi protocols, and Web3 frontend integrations — with security reviews built into the process, not added at the end.

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contracts/Vault.sol

01. Requirements & Security Scope: Define the exact contract behaviour, access control model, and upgrade strategy before writing any code. Security scope is agreed at this stage.

02. Architecture Design: Design the contract architecture — inheritance, interfaces, libraries, and proxy patterns — with gas efficiency and auditability in mind.

03. Contract Development: Write contracts with comprehensive NatSpec documentation, events for all state changes, and unit tests covering the full behaviour matrix.

04. Internal Security Review: Static analysis with Slither and Mythril, manual reentrancy and access control review, and fuzz testing with Foundry before any external audit.

05. Testnet Deployment: Deploy to testnet, run integration tests against live contracts, and verify all events and state transitions match the specification.

06. Mainnet & Frontend: Mainnet deployment with multisig verification, frontend Web3 integration, and monitoring for unusual activity.

How We Work

Every engagement follows defined phases — each delivering something concrete before we move forward.

01Requirements & Security Scope

Requirements & Security Scope

Define the exact contract behaviour, access control model, and upgrade strategy before writing any code. Security scope is agreed at this stage.

STAGE 1 OF 6

Business Requirements

Behaviour · Access · Upgrade

Security Scope

Ready

Threat model drafted

Access control agreed

Upgrade pattern decided

What We Deliver

Specific capabilities and deliverables — built, tested, and handed over.

Solidity contracts for DeFi protocols, token systems, governance, and custom business logic — with comprehensive tests and NatSpec documentation.

Comprehensive test suiteNatSpec documentationEvents on all state changes

Internal security review using Slither, Mythril, and manual analysis before any external audit — catching issues before they cost audit budget.

Slither & Mythril analysisManual reentrancy reviewFuzz testing with Foundry

AMM, lending, staking, and yield protocols built with correct economic invariants and upgrade patterns agreed before development begins.

Economic invariant testsUpgrade patternInvariant testing

React and Next.js frontends with wallet connection, transaction signing, and on-chain state reading — built to handle RPC failures gracefully.

Wallet connectionTransaction signingRPC failure handling

ERC-20, ERC-721, and ERC-1155 implementations with custom extensions, metadata handling, and marketplace integration.

Standard-compliantCustom extensionsMetadata handling

Technology Stack

We choose tools based on your requirements — not what is trending.

Smart Contracts

SolidityOpenZeppelinFoundryHardhat

Security

SlitherMythrilEchidnaCertora

Frontend

wagmiviemRainbowKitethers.js

Infrastructure

IPFSThe GraphAlchemyInfura

Industries We Serve

Blockchain & Web3 applied across sectors with distinct requirements.

DeFi

AMM protocols, lending markets, staking systems, yield optimisers, governance contracts.

NFT & Gaming

NFT collections, on-chain game logic, asset ownership systems, marketplace contracts.

Supply Chain

Provenance tracking, document verification, multi-party settlement, audit trails.

Tokenisation

Real-world asset tokenisation, security token infrastructure, compliant transfer restrictions.

See all industries

Frequently Asked Questions

Common questions about this service, how we work, and what we hand over.

We provide an internal security review using automated tools and manual analysis. For mainnet deployment of production protocols we recommend and can coordinate an external audit by a specialised firm.

Yes. We review existing code, document findings, and implement changes or additions. We require full test coverage before making any changes to production contracts.

We recommend OpenZeppelin's UUPS or Transparent Proxy pattern depending on your governance model. Immutable contracts are used where upgrade complexity is not justified by the use case.

Yes. Gas efficiency is considered during design and measured during testing. We do not optimise to the point of reducing readability or audit clarity — those tradeoffs are discussed explicitly.

OUR APPROACH

Why not a generic agency?

The difference is not in the technology stack. It is in how the work is structured.

Spec before code

We write the contract, architecture document, or data model before a single line of implementation. You see exactly what will be built before we build it.