Fixed Price on Day One
After the discovery call, we send a written proposal with a fixed price, timeline, and full scope. Nothing is billed beyond what was agreed. No scope creep charges for requirements confirmed upfront.
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Smart Contract Development Services
Smart contracts that execute exactly as written — every time.
We write, test, and deploy smart contracts on Ethereum, BNB Chain, and Solana. Token contracts, staking protocols, DeFi platforms, vesting schedules, and DAO governance — built in Solidity and Rust, gas-optimised, and tested against adversarial conditions before a single line goes to mainnet.
Delivered in 2–5 weeks · Fixed price · 50% advance — 50% on delivery
Service overview
A poorly written smart contract does not just fail — it fails in public, on a permanent ledger, with real money at stake.
Most smart contract developers will write you a contract. Fewer will test it properly. Almost none will tell you honestly when your architecture creates a vulnerability they cannot safely code around. We will.
Before
The risks you are managing
Reentrancy vulnerabilities that drain contract funds in a single transaction
Integer overflow bugs that corrupt balances and tokenomics
Access control gaps that allow unauthorised withdrawals or minting
Gas inefficiencies that make your contract unusable at scale
Irreversible deployment errors — a bug on mainnet cannot be patched
After
What a Solidity Labs contract delivers
Contracts tested with 100+ unit tests including adversarial scenarios
Hardhat static analysis run on every contract before deployment
Gas optimisation — your users pay less per interaction
Verified and published on Etherscan/BSCScan for community trust
Full source code and deployment keys handed over on delivery
What you get
What every smart contract we build includes
We do not have a junior developer write the first draft and a senior developer review it at the end. The engineer who architectures your contract writes it, tests it, and deploys it. One person accountable for the whole thing.
Multi-chain deployment
We develop and deploy on Ethereum, BNB Smart Chain, Polygon, and Solana. We will recommend the right chain for your use case — based on transaction costs, ecosystem maturity, and your target user base — before a line of code is written.
Comprehensive test coverage
Every contract ships with a full test suite written in Hardhat and Foundry. Unit tests for every function. Integration tests for contract interactions. Fork tests against mainnet state. Fuzz testing for edge cases. If it can break, we try to break it first.
Gas optimisation
Unoptimised contracts cost your users more in gas fees and can become economically unviable as network demand grows. We apply storage packing, loop optimisation, and calldata encoding best practices to every contract we ship.
Etherscan verification
Every contract we deploy is verified and published on the relevant block explorer — Etherscan, BSCScan, or Solscan. Your users can read the source code, verify the logic, and trust the contract independently. Unverified contracts are a red flag. Ours are always verified.
Security audit partnership
For contracts handling significant value — DeFi protocols, tokenization platforms, and high-volume staking contracts — we partner with third-party audit firms. We can coordinate the audit as part of your project, or deliver the contract ready for you to send to your preferred auditor.
15 days of post-deployment support
Smart contracts cannot be edited once deployed — but the systems around them can. In the 15 days after deployment, we monitor transaction behaviour, assist with any frontend integration issues, and help your team understand how to interact with the contract correctly. The code is live. We do not disappear.
How we work together
What's included in every smart contract development engagement
Every project starts with a free discovery call. We define scope, confirm a fixed price in writing, and start only when you are ready.
Milestone-Based Delivery
Your project is split into clear milestones with defined deliverables. You review and approve each stage before the next begins. 50% advance to start. 50% on final delivery. No hidden instalments.
Dedicated Communication
You get a direct WhatsApp line and weekly progress updates throughout the build. No ticketing systems. No account managers between you and the team. You always know what is being built and when.
15-Day Post-Launch Support
Every project includes 15 days of post-launch support at no extra charge. Bug fixes, integration issues, and minor adjustments within scope are handled during this window. You are not left to figure it out alone.
Get your fixed-price proposal
Free. No commitment. Sent within 24 hours.
How it works
From your idea to a verified contract on mainnet
Most smart contract developers treat deployment as the finish line. We treat it as the beginning of verification. Here is the process that gets your contract from concept to production.
1
Architecture
We design the contract logic before writing it.
Every smart contract engagement begins with an architecture session. We map the complete logic — every state variable, every function, every access control rule, every event. This document becomes the contract specification that guides development and forms part of your final deliverables. No code is written until the architecture is approved in writing.
2
Scope and payment
Fixed price confirmed. 50% advance received. Development starts.
With the architecture document as the foundation, we provide a fixed-price proposal. Once approved, the 50% advance is paid and development begins within 48 hours. The price does not change unless the scope changes — and scope changes require a written change order before any additional work begins.
3
Development
Contract written, tested, and stress-tested.
The contract is written against the approved specification, with the test suite developed in parallel — not as an afterthought. Unit tests are written for every function. Integration tests cover all multi-contract interactions. Fuzz tests probe for edge cases the specification might have missed. You receive weekly updates with a testnet deployment link so you can interact with the contract as it develops.
4
Audit preparation
Static analysis, gas reports, and audit-ready documentation.
Before deployment, every contract goes through Slither static analysis and a Hardhat gas report. Known vulnerability patterns are checked. The codebase is formatted, commented, and documented to the standard required by security audit firms. If a third-party audit is included in your package, we submit to the auditor at this stage and manage the remediation process.
5
Deployment
Mainnet deployment. Verified. Yours completely.
Deployment is executed on mainnet with the agreed configuration. The contract is verified on the relevant block explorer within 24 hours of deployment. You receive the full deployment package: source code, ABI, deployment addresses, owner keys, and all test files. The final 50% payment is due on your confirmation that the deployment matches the agreed specification.
Technology stack
The technology behind every contract we ship
We use the same development and testing tools that professional blockchain security firms use. There is no shortcut between idea and production-ready contract.
Contract Languages
SolidityRustVyperYul
Development & Testing
HardhatFoundryTruffleBrownieWaffle
Security & Analysis
SlitherMythrilMythXEchidnaManticore
Networks
EthereumBNB ChainPolygonSolanaAvalancheArbitrum
Frequently asked questions
Questions every smart contract client asks
Clear answers on timeline, payment, integrations, support, and delivery expectations.
A smart contract is a programme that runs on a blockchain. Unlike a traditional server-side application, it executes autonomously — no company, developer, or intermediary can modify its behaviour once deployed. This makes it uniquely suited to situations where two parties need to transact without trusting each other: token distribution, DeFi lending, staking rewards, NFT royalties, and escrow. You need a smart contract if your use case requires transparent, tamper-proof execution of financial or data logic. If it could instead be handled by a standard backend API with a trusted administrator, a smart contract may be more complexity than you need. We will tell you honestly which applies to your situation during the discovery session.
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Let's build your smart contract.
Code that runs on a public ledger deserves to be written carefully.
Tell us what you are building. We will review your requirements, recommend the right architecture and blockchain, and send you a fixed-price proposal within 24 hours. If the scope is outside what we can safely deliver, we will tell you that too.
Fixed-price proposal within 24 hours · 50% advance · 50% on delivery · NDA available on request