Smart contracts
Written, tested and optimised to keep gas costs low.
Blockchain & Web3 Development
Build the next thing on the blockchain.
We turn Web3 ideas into secure, working products: smart contracts, decentralised apps, tokens and crypto payments, built with security first.
Rated 4.9/5 by our clients · 150+ projects delivered
- 100%test coverage on contracts
- EVMEthereum and compatible chains
- Auditbefore every launch
Overview
Blockchain development with security at the core.
Blockchain can remove middlemen, create new digital assets and make transactions transparent, but only when it is built carefully. We design and develop smart contracts, decentralised applications and token systems that are secure, efficient and easy to use.
Our Web3 team works with Solidity on Ethereum and EVM-compatible chains such as Polygon, Arbitrum, Base and BNB Chain. Every contract is covered by automated tests and reviewed line by line, because code on the blockchain is hard to change once deployed.
We also give honest advice: if a traditional database would serve your idea better, we will tell you and save you the cost.
On-chain, in real time
Built for a network that never sleeps.
Smart contracts run on a live, public network. We build, test and monitor them so every transaction behaves exactly as intended.
Gas used21,400
Tests passing248 / 248
Audit statusVerified
Capabilities
What we can build and support for you.
Build decentralized applications, smart contract systems, blockchain integrations, and Web3-based digital platforms.
- Smart contract development
- Blockchain application development
- Decentralized applications (dApps)
- Cryptocurrency/token integration
- Digital wallet integration
- Blockchain API development
- NFT platform development
- Tokenization platforms
- Web3 authentication
- Blockchain infrastructure
- Smart contract security reviews
- Existing blockchain application maintenance
Why zeyweb
Why businesses choose zeyweb for blockchain-web3.
Security first
Automated tests and manual review for every contract before it touches mainnet.
Gas-efficient
Optimised contracts keep transaction costs low for your users.
Human-friendly UX
Wallet flows that people new to crypto can actually use.
Honest advice
We only recommend blockchain where it genuinely adds value.
What we do
Web3 products, done safely.
Security audits
Thorough reviews to find vulnerabilities before launch.
dApps & wallets
Web apps that connect to users' wallets safely and simply.
Tokens & NFTs
Token launches, NFT collections, staking and vesting.
Crypto payments
Accept cryptocurrency on your website or store.
Blockchain consulting
Honest advice on whether and how blockchain fits your idea.
Typical projects
Examples of what clients ask us for.
Token launch with wallet sign-in
An ERC-20 token, audited contracts and a dashboard where holders connect their wallet.
NFT or tokenized-asset platform
Minting, listings and secondary sales with on-chain royalties.
Crypto payments in an existing store
Accept stablecoins at checkout and reconcile them with your orders.
How it works
A clear process from day one.
- 01Week 1
Feasibility
Is blockchain the right tool? Honest advice and a plan.
- 02Weeks 1–2
Architecture
Contracts, tokenomics and security model designed together.
- 03Weeks 2–8
Build & test
Contracts and dApp with full automated test coverage.
- 04Weeks 8–10
Audit & testnet
Security review and a public test deployment.
- 05Week 10+
Mainnet launch
Deployment, verification and monitoring after launch.
0
Surprises on-chain
Every line is tested and reviewed before it is deployed.
−40%
Lower gas costs
Optimised contracts save your users money on every transaction.
1-click
Simple for users
Wallet connections and flows that non-crypto people understand.
Built with
Solidity
Ethereum
React
Next.js
Node.js
Python
What's included
Everything you need, nothing you don't.
Every project comes with a clear scope, so you always know what you're getting.
Industries we work with
- DeFi
- Fintech
- Gaming
- Supply chain
- Real estate tokenisation
- Loyalty programmes
- Digital art & NFTs
- Payments
- Smart contract development
- Automated tests for every function
- Internal security review
- dApp front end with wallet connection
- Testnet deployment and demo
- Mainnet deployment and verification
- Documentation for your team and users
- Post-launch monitoring
Featured projectBlockchain
LedgerLoop
A DeFi dashboard with token swaps, staking and audited smart contracts.
12kwallets connected
See our work →“They took our token idea from a whiteboard sketch to an audited smart contract and a beautiful dApp.”
Security comes first
Every contract is covered by automated tests and reviewed line by line before it goes on-chain, because deployed code is hard to change.
Ways to work with us
Pick the model that fits.
Every engagement starts with a free consultation and a clear, written quote.
Fixed-price project
A clear scope, timeline and price agreed before we start. Ideal for new websites, apps and systems.
Custom quotationGet a quote →Monthly or yearly plan
Websites, stores, apps and hosting on a predictable subscription.
Fixed monthly or yearly plansSee plans →Discuss Your Web3 Project
Pricing for Blockchain & Web3 Development is tailored to each project. Tell us what you need and we'll reply within one business day with next steps and a personal quotation.
Which blockchains do you work with?
Ethereum and EVM-compatible chains such as Polygon, BNB Chain, Arbitrum and Base. We'll recommend the best fit for your costs and users.
Do you audit smart contracts?
Every contract gets automated tests and an internal security review. For high-value launches we also coordinate an independent audit.
Can you add crypto payments to my store?
Yes. We can accept crypto on your website or store and convert it automatically if you prefer.
Is blockchain right for my idea?
Not always. We'll tell you honestly if a normal database would serve you better, and save you the cost.
What is a smart contract?
A smart contract is a program stored on a blockchain that runs exactly as written, for example to transfer tokens when conditions are met, without a middleman.
How much does a smart contract cost?
Simple token contracts cost far less than complex DeFi protocols. We quote after reviewing your requirements and risk level.
Can you build an NFT collection?
Yes. We build NFT contracts, minting pages, metadata storage and marketplace compatibility.
Related services
Cybersecurity & Recovery
Security audits, hardening and monitoring to keep attackers out, and fast recovery if something does go wrong.
Learn more →Website & Web Applications
From a company website to a full SaaS platform, we design and build fast, secure and easy-to-manage products that help your business grow.
Learn more →Custom Software Development
When off-the-shelf tools don't fit, we build the software your business runs on: web applications, SaaS platforms, APIs and cloud systems.
Learn more →Helpful reading
ArticleDoes your business need blockchain?An honest guide to when Web3 helps a business, and when it doesn't.
ToolProject cost estimatorGet a quick price range for your website, store, app or blockchain project.
ServiceCybersecurity & recoverySecurity audits, hardening and monitoring to keep attackers out, and fast recovery if something does go wrong.
Let's build something great together.
Tell us what you need. We'll reply within one business day with ideas and a free quote.