01
Tokens
ERC-20, SPL, vesting, airdrops.
- ERC-20 / ERC-1400 / SPL
- Vesting & Merkle airdrops
- Full token launches
Web3 · contracts practice
Smart contracts, written test-first. Audited before mainnet.
Shazra Labs is a smart contract development company writing the on-chain code behind tokens, DeFi, NFTs, RWA, and DAOs. Solidity and Vyper on EVM, Rust and Anchor on Solana. Test-first with Foundry and Anchor, gas-aware, and audited before mainnet. You own every repo and key at handover, no lock-in.
Solidity · Rust · Vyper Foundry · Anchor Audit-first
We build
Tokens · DeFi · NFT · RWA · DAO
Test-first, gas-aware
You own the code
What it is
What good smart contract development looks like
The contract is the product — if it has a bug, there's no patch on a live exploit. So we write test-first (Foundry, Anchor), keep gas in check, document the trust assumptions, and run the security tooling continuously, not at the end. Whether it's a token, a DeFi protocol, an NFT system, or RWA, the standard is the same: audited before mainnet, owned entirely by you.
What we write
Contracts for the whole stack.
From a single token to a multi-contract protocol.
02
DeFi contracts
AMMs, lending, staking, perps.
- Pools, markets, vaults
- Oracle & keeper integration
- Full DeFi protocols
03
NFT & RWA
Collectibles to real assets.
- ERC-721 / 1155 · Metaplex
- Permissioned RWA tokens
- EIP-2981 royalties
04
DAO & governance
Voting, treasury, timelocks.
- Governor & voting modules
- Treasury & timelock
- Multisig integration
05
Upgradeability
Proxies, done right.
- UUPS / Transparent proxies
- Access control & timelocks
- Documented trade-offs
06
Testing & security
Where bugs die before mainnet.
- Foundry / Anchor test suites
- Fuzzing & invariants
- Audited before mainnet
Languages & chains
What we write in
Languages
SolidityVyperRust · AnchorMoveCairo
Chains
EthereumBasePolygonArbitrumSolanaAvalanche
The process
Spec to deployed.
Test-first, audited, handed over. Fixed quote.
01Spec & threat model
02Write + tests
03Fuzz & invariants
04Audit
05Deploy
06Handover
We start with the spec and the threat model, write the contracts test-first, fuzz the invariants, then audit before deploying. At handover, every repo, deploy key, and owner address is yours.
Every contract, audited before mainnet.
Smart contract development and auditing are two halves of the same job. We build audit-first and review everything before it ships. See how the review works, and what it costs, in our smart contract audit service and audit cost guide.
Smart contract development — FAQ
People also ask
What is smart contract development?
Designing, writing, and testing the on-chain programs that run a Web3 product — tokens, DeFi protocols, NFT contracts, RWA systems, DAOs. Done well it is test-first (Foundry/Anchor), gas-aware, and audited before it touches mainnet.
Which languages and chains do you develop on?
Solidity and Vyper on EVM chains (Ethereum, Base, Polygon, Arbitrum, Optimism, Avalanche, BNB), Rust and Anchor on Solana, plus Move and Cairo. We pick the chain and language with you based on your product, users, and cost targets.
Do you write upgradeable contracts?
When it makes sense. We implement proxy patterns (UUPS/Transparent) with proper access control and timelocks where upgradeability is needed, and we keep contracts immutable where it isn't. We document the trade-off either way.
Are the contracts audited?
Yes — we're audit-first. Every contract goes through static analysis (Slither), fuzzing and invariants (Echidna/Foundry), and manual review before mainnet, with an external audit for high-value contracts. See our smart contract audit service.
How do ownership and handover work?
You own everything from day one. Repos, deploy keys, multisig roles, and owner addresses all transfer to you at handover. No proprietary lock-in.
From the blog
Contract field notes
The audit checklist we run, and the 12-week playbook for a full protocol.
Solidity
Rust
Audited
Fully yours
Need smart contracts written?
Send the spec (or the idea) and we'll come back with an approach, a scope, and a fixed quote within a day.