Smart contracts

Smart contract development & audit

Secure, efficient smart contracts for tokens, NFTs, DeFi and business automation, plus thorough reviews before you go live.

Smart contract development & audit

Overview

Code that holds value must be right the first time

Smart contracts automate agreements on the blockchain. Once deployed, they're hard to change, and mistakes can be expensive. That's why development and security review go hand in hand.

AnAInfo writes clean, gas-efficient contracts using proven libraries, tests them thoroughly, and prepares them for independent audit. We also review existing contracts to find and fix issues before launch.

Code that holds value must be right the first time

What we build

Smart contract services

Token contracts

Fungible tokens with minting, burning, permits and vesting.

NFT contracts

ERC-721 and ERC-1155 collections, royalties and on-chain metadata.

DeFi contracts

Pools, vaults, staking and lending logic.

Business automation

Escrow, payments, supply chain and document verification.

Upgradeable contracts

Proxy patterns with safe upgrade paths.

Contract review

Security review of existing code with a findings report and fixes.

Features

What every contract gets

Tested libraries

Built on OpenZeppelin and other proven components.

Full test coverage

Unit, integration and fuzz tests.

Gas optimisation

Lower transaction costs for your users.

Access control

Roles, multi-sig ownership and timelocks.

Static analysis

Automated checks with tools like Slither.

Documentation

Clear specs and NatSpec comments.

Audit preparation

Code freeze, test reports and auditor support.

Verification

Verified source code on block explorers.

How we work

Our development process

  1. 01

    Specification

    We turn your business rules into a precise contract specification.

  2. 02

    Development

    Contracts written with security patterns and gas efficiency in mind.

  3. 03

    Testing

    Unit, integration and fuzz testing on local and test networks.

  4. 04

    Security review

    Internal review and static analysis, with findings fixed.

  5. 05

    Independent audit

    We coordinate with a third-party auditor and address their findings.

  6. 06

    Deployment

    Mainnet deployment, verification and handover.

Technology

Technology we use

Solidity

Rust

Vyper

OpenZeppelin

Foundry

Hardhat

Slither

Echidna

Ethereum

Solana

Polygon

Engagement models

Work with us the way that suits you

Fixed price

For projects with a clear scope. We agree features, timeline and cost up front, and deliver in milestones you sign off one by one.

Time & material

For products that will evolve. You pay for the hours worked, with full visibility through weekly reports and a shared task board.

Dedicated team

Developers, designers and testers who work only on your product, managed by you or by our project manager.

Clients worldwide

Smart contract development for the USA, Europe and the UAE

We work remotely with companies across North America, Europe and the Middle East. Calls are planned in your working hours, and documentation, contracts and invoicing are in English.

United States

Smart contracts for US startups and enterprises across fintech, gaming and supply chain.

Europe & UK

Contracts for EU projects with MiCA-ready token logic and clear documentation.

Smart contract development FAQs

What is a smart contract audit?

An independent review of your contract code by security specialists, who look for vulnerabilities and logic errors before the contract holds real value.

Do you perform audits yourselves?

We perform thorough internal security reviews and testing. For contracts that will hold user funds, we also recommend an independent audit, which we coordinate.

Can you fix a contract that's already deployed?

If it's upgradeable, yes. If not, we can deploy a fixed version and help migrate users and funds safely.

Which languages do you use?

Solidity and Vyper for Ethereum and EVM chains, and Rust for Solana and other non-EVM chains.

What are you waiting for?

Let's talk about your project

Tell us what you're building, or what needs rescuing. We reply within one business day.

Contact us