Best Smart Contracts Audit Services by Rain Infotech

What We Do ?

What We Deliver in Smart Contracts Audit

We help startups, DeFi protocols, DAOs, NFT projects, and enterprises secure their smart contracts and NFT smart contract audit with thorough manual reviews, automated tests, gas optimizations, and vulnerability reports.

Manual Code Review Line-by-Line

Our expert auditors manually inspect your Solidity (or Vyper) contracts for logic flaws, access control weaknesses, underflows, overflows, and unexpected behavior.

Automated Vulnerability Scanning

We run your contracts through advanced static analyzers (like Slither, MythX, or Echidna) to detect reentrancy risks, timestamp dependencies, denial-of-service vectors, and other known vulnerabilities.

Gas Optimization Review

Identify inefficient loops, storage bloat, redundant calculations, and unnecessary event emissions to reduce gas fees and improve dApp usability.

Security Testing & Attack Simulation

Test for reentrancy attacks, oracle manipulation, flash loan exploits, overflow/underflow risks, and signature replay vulnerabilities.

Upgradeable Contract Review

Specialized review for UUPS, Transparent Proxy, and Beacon Proxy setups to ensure secure logic upgrades without risking user funds.

Admin & Permission Management Audit

Analyze your contract’s role-based permissions, owner-only functions, multisig access, and emergency controls (pause, upgrade, kill switches).

Detailed Audit Report with Risk Scoring

Deliver a categorized vulnerability report (Critical, High, Medium, Low, Informational) with recommendations and mitigation strategies.

Post-Audit Re-Verification & Public Badge Issuance

After fixes, we re-verify the code, confirm patch validity, and optionally issue a public audit badge for your website or dApp.

Industry Adoption

Why Smart Contract Audits Are Essential for Web3 Success

A single vulnerability can destroy trust, drain funds, and halt a project’s growth. Smart Contracts Audits prevent exploits, safeguard assets, and protect user confidence.

At Rain Infotech, we specialize in smart contracts audit companies, helping businesses and developers gain real-time blockchain transparency with secure, scalable, and intuitive explorer platforms built for real-world applications.

Speak to a Specialist

Over $5 Billion Lost to Smart Contract Exploits Since 2020

Reentrancy attacks, logic flaws, and oracle manipulation have led to massive DeFi losses.

92% of Major DeFi Protocols Now Require Audit Certification

Top exchanges, launchpads, and DAOs mandate third-party audits before listing or integration.

Audited Projects See 30–50% Higher User Trust and TVL Growth

Security transparency increases early user adoption and larger liquidity deposits.

Gas Optimizations Improve Transaction Efficiency by 15–25%

Audits identify gas-heavy code paths and optimize smart contracts, saving users and platforms significant transaction fees.

Audit-Ready Projects Unlock Easier Access to Funding and Partnerships

VCs, DAOs, and ecosystems increasingly require proof of third-party smart contract audits before backing or integrating new projects.

Innovation Stack

Our Smart Contracts Audit Capabilities

From DeFi lending protocols to NFT marketplaces and DAO treasuries, we audit smart contracts with rigorous manual inspection, advanced automation, and real-world exploit simulations.

Solidity & Vyper Smart Contract Audits

In-depth audits for contracts written in Solidity (EVM-compatible chains) or Vyper (Ethereum L2s, advanced DeFi platforms).

DeFi Protocol Audit Expertise

We specialize in complex DeFi systems, AMMs, lending/borrowing, staking farms, yield optimizers, launchpads, and decentralized insurance pools.

NFT Smart Contract Security Audits

Secure ERC-721/1155 contracts, lazy minting logic, royalty splits, marketplace integrations, and metadata protection.

DAO Governance Smart Contract Review

Audit token voting, multi-signature treasuries, governance modules (like Compound’s Governor Bravo), and snapshot-based decision-making.

Multichain & Layer-2 Audit Support

Audit contracts across Ethereum, Polygon, BNB Chain, Arbitrum, Optimism, Avalanche, Base, and other EVM-compatible chains.

Proxy & Upgradeable Contract Security

Audit UUPS, Transparent, and Beacon proxy patterns, ensuring upgrade safety without compromising contract logic or state.

Integration with CI/CD Pipelines

We help projects integrate static analysis tools into their GitHub Actions or GitLab pipelines, supporting secure continuous delivery.

Formal Verification Consulting (Optional Add-On)

For mission-critical contracts (like stablecoins or large DAOs), we advise on formal methods like SMT solvers, symbolic execution, and formal proofs.

How It Works

Our Well-Organized Approach to Smart Contracts Audit

Our audit process is designed to uncover vulnerabilities, strengthen code security, and give your team a clear path to a safe launch with full transparency and re-verification support.

01

Scope Definition & Code Intake

We begin by understanding your project’s functionality, business logic, and deployment plans. You share the contract repo, test cases, and documentation.
02

Manual & Automated Audit Layer

We manually inspect each contract line-by-line and run the code through automated tools like Slither, MythX, and Hardhat plugins to catch known exploits.
03

Threat Modeling & Attack Simulation

Simulate possible attack vectors, including reentrancy, flash loan, logic errors, front-running, and improper oracle handling, based on your contract’s purpose.
04

Issue Categorization & Detailed Reporting

We categorize issues by severity (Critical, High, Medium, Low, Informational) and provide code references, risk descriptions, and remediation suggestions.
05

Developer Fix Review & Re-Audit

After your team implements the fixes, we re-verify the code and confirm if vulnerabilities are properly addressed, ensuring full resolution.
06

Final Report & Public Badge

We issue a signed, timestamped final audit report with your project name and a summary of findings, optionally linked with a “Security Audited” badge for your site or GitHub.

Sectors

Redefining Industries with Blockchain Companies

Custom-built digital solutions tailored to the unique demands of every industry. We help businesses overcome complex challenges with blockchain development companies.

Healthcare

Enhance diagnostics through AI-powered analysis, automate patient engagement with intelligent assistants.

AI Blockchain

Finance

Streamline operations with AI-driven fraud detection, predictive analytics, and algorithmic decision-making.

AI Blockchain

Retail

Streamline operations with AI-driven fraud detection, predictive analytics, and algorithmic decision-making.

AI Blockchain

Insurance

Streamline operations with AI-driven fraud detection, predictive analytics, and algorithmic decision-making.

AI Blockchain

Supply Chain

Track goods from origin to destination with transparent, tamper-proof blockchain records.

Blockchain

Government

Build trust and transparency in public systems with blockchain-led recordkeeping, identity verification.

Blockchain

Energy

Enable peer-to-peer energy trading, track carbon credits, and support sustainable energy initiatives using decentralized.

Blockchain

Tech Stack

Our Smart Contracts Audit Services Tech Stack

We use battle-tested tools and blockchain frameworks to deliver secure, scalable, and future-ready decentralized solutions.

Blockchain Infrastructure

Robust backend infrastructure that guarantees your blockchain app operates seamlessly. From node providers and indexing tools to wallet integrations and decentralized storage, we cover all the necessities.

Service Included:

Trust Wallet

Keplr

Safe (Gnosis)

SubQuery

IPFS

WalletConnect

The Graph

RainbowKit

Infura

Alchemy

QuickNode

Chainstack

MetaMask

Blockchain Ecosystem

Improve your product experience with seamless cross-chain capabilities, DEX frameworks, and blockchain explorers. We integrate leading tools such as LayerZero, Uniswap SDK, Blockscout, and custom-built bridges to enhance every interaction.

Service Included:

1inch

Pinksale.finance

Pump.fun

MoonPay

LayerZero

Uniswap

PancakeSwap

Iquidus Explorer

Bulwark Explorer

Blockscout Explorer

Beacon Explorer

Blockchain Platforms

Build on the most trusted and scalable blockchains in the industry. We support a wide range of networks, from Ethereum and BNB Chain to emerging Layer 1s like Sui and Aptos, tailored to your project’s needs.

Service Included:

Polygon

Arbitrum

Optimism

Near

Sui

Aptos

Hyperledger Besu

Tendermint

Avalanche

Cosmos SDK

Solana

Substrate

Ethereum

BNB Chain

Blockchain Tools

Discover essential tools like Remix, MetaMask, Hardhat, and Etherscan that streamline blockchain development, testing, and deployment. From smart contract debugging to transaction tracking, we utilize the best tools to ensure efficiency, security, and seamless dApp performance.

Service Included:

Hardhat

Remix

Ganache

Brownie

Vyper

Rust

Solidity

Move

Ethers.js

Cairo

Web3.js

OpenZeppelin

Truffle

Foundry

Why Rain Infotech?

Why Leading Brands Choose Rain Infotech

Trusted by global clients and partners for delivering secure, scalable, and future-ready Blockchain and AI solutions with reliability, speed, and deep domain knowledge.

10+ Years of Excellence

Founded in 2015, we’ve grown into a globally trusted agency delivering high-impact digital solutions.

Blockchain & AI Under One Roof

Dual expertise in Web3 and GenAI – from smart contracts to custom LLMs and AI copilots.

Custom & White-Label Solutions

Whether you need a fast MVP or a fully branded platform, we’ve built it all.

Startup Agility + Enterprise Maturity

We adapt fast like startups, and deliver reliably like enterprise teams.

Security-First Development

From DeFi platforms to AI agents, security is baked into our architecture and code.

Transparent Communication

You’re never left guessing – we collaborate openly from start to scale.

Blogs

Resources & Insights

Explore expert blogs, technical guides, and curated insights to help you build smarter with AI and blockchain development .

RWA Tokenization vs Traditional Asset Management: Key Differences

Technology

Hyperledger

RWA Tokenization vs Traditional Asset Management: Key Differences

In the rapidly changing financial system, conventional methods have been challenged by blockchain-powered innovation. The most revolutionary of these are Real-World…

What Our Clients Say

Trusted by global clients and partners for delivering secure, scalable, and future-ready Blockchain and AI solutions with reliability, speed, and deep domain knowledge.

300+

Coin-Token development

100+

Web3 Mobile-Web Apps Delivered

50+

dApps Built on EVM Chains

30+

Decentralised Web & Mobile Wallet

Just genius. Just pure genius. Fun to work with. On time. Not only was he very accessible but he delivered more than what was committed, I got my work well before time for which I was really satisfied.

Hanson Nguyen

Orlando, United States

Their blockchain expertise is unparalleled. They helped us launch our token and build a secure, scalable dApp. The communication throughout the project was excellent.

Mike Rotch

Web3 Innovator

Amazing team! They understood our vision perfectly and delivered a cutting-edge AI solution that exceeded our expectations. Highly recommend for complex projects.

Sarah Chen

Tech Startup CEO

Hanson Nguyen

Orlando, United States

Their blockchain expertise is unparalleled. They helped us launch our token and build a secure, scalable dApp. The communication throughout the project was excellent.

Mike Rotch

Web3 Innovator

Amazing team! They understood our vision perfectly and delivered a cutting-edge AI solution that exceeded our expectations. Highly recommend for complex projects.

Sarah Chen

Tech Startup CEO

Hanson Nguyen

Orlando, United States

Their blockchain expertise is unparalleled. They helped us launch our token and build a secure, scalable dApp. The communication throughout the project was excellent.

Mike Rotch

Web3 Innovator

Hanson Nguyen

Orlando, United States

Their blockchain expertise is unparalleled. They helped us launch our token and build a secure, scalable dApp. The communication throughout the project was excellent.

Mike Rotch

Web3 Innovator

Amazing team! They understood our vision perfectly and delivered a cutting-edge AI solution that exceeded our expectations. Highly recommend for complex projects.

Sarah Chen

Tech Startup CEO

Hanson Nguyen

Orlando, United States

Their blockchain expertise is unparalleled. They helped us launch our token and build a secure, scalable dApp. The communication throughout the project was excellent.

Mike Rotch

Web3 Innovator

Amazing team! They understood our vision perfectly and delivered a cutting-edge AI solution that exceeded our expectations. Highly recommend for complex projects.

Sarah Chen

Tech Startup CEO

Hanson Nguyen

Orlando, United States

Their blockchain expertise is unparalleled. They helped us launch our token and build a secure, scalable dApp. The communication throughout the project was excellent.

Mike Rotch

Web3 Innovator

FAQs

FAQs About Smart Contracts Audit

A smart contract audit is a detailed security review of blockchain code to identify vulnerabilities, inefficiencies, and logic errors before deploying to mainnet. We provide smart contract auditing services to ensure your code is secure and production-ready.

We audit smart contracts written in Solidity, Vyper, and EVM-compatible languages across Ethereum, Polygon, BNB Chain, Arbitrum, Optimism, and more, along with Next.js project integrations. If you’re looking to audit smart contract code on any of these chains, our team can help.

We audit DeFi protocols (DEXs, staking, lending), DAOs, NFT projects, stablecoins, launchpads, oracles, bridges, and escrow systems. Our smart contract audit consulting ensures that even complex protocols are thoroughly analyzed.

A small-to-medium Fintech Smart Contracts project audit takes 5–10 business days. Larger protocols or multi-contract projects may take 2–4 weeks, depending on scope and complexity.

We use tools like Slither, MythX, Echidna, Hardhat plugins, and our own custom checklists, along with full manual review for business logic integrity. Every smart contracts audit is backed by automated tools and expert insight.

Yes. You’ll receive a PDF audit report detailing vulnerabilities, their severity, suggested fixes, and whether they’ve been resolved in the re-audit.

While we don’t rewrite your contracts, we provide clear recommendations for your developers and offer a re-audit after fixes are implemented.

Yes. After a successful audit, we can issue a “Security Audited by Rain Infotech” badge with a timestamped report link for your website or GitHub.

Smart Contracts Audit That Protect Your Protocol and Users

What We Deliver in Smart Contracts Audit

Manual Code Review Line-by-Line

Automated Vulnerability Scanning

Gas Optimization Review

Security Testing & Attack Simulation

Upgradeable Contract Review

Admin & Permission Management Audit

Detailed Audit Report with Risk Scoring

Post-Audit Re-Verification & Public Badge Issuance

Why Smart Contract Audits Are Essential for Web3 Success

At Rain Infotech, we specialize in smart contracts audit companies, helping businesses and developers gain real-time blockchain transparency with secure, scalable, and intuitive explorer platforms built for real-world applications.

Over $5 Billion Lost to Smart Contract Exploits Since 2020

92% of Major DeFi Protocols Now Require Audit Certification

Audited Projects See 30–50% Higher User Trust and TVL Growth

Gas Optimizations Improve Transaction Efficiency by 15–25%

Audit-Ready Projects Unlock Easier Access to Funding and Partnerships

Our Smart Contracts Audit Capabilities

Our Well-Organized Approach to Smart Contracts Audit

Scope Definition & Code Intake

Manual & Automated Audit Layer

Threat Modeling & Attack Simulation

Issue Categorization & Detailed Reporting

Developer Fix Review & Re-Audit

Final Report & Public Badge

Success Stories That Speak for Themselves

Redefining Industries with Blockchain Companies

Healthcare

Finance

Retail

Insurance

Supply Chain

Government

Energy

Our Smart Contracts Audit Services​ Tech Stack

Blockchain Infrastructure

Service Included:

Blockchain Ecosystem

Service Included:

Blockchain Platforms

Service Included:

Blockchain Tools

Service Included:

Why Leading Brands Choose Rain Infotech

10+ Years of Excellence

Blockchain & AI Under One Roof

Custom & White-Label Solutions

Startup Agility + Enterprise Maturity

Security-First Development

Transparent Communication

Resources & Insights

What Our Clients Say

FAQs About Smart Contracts Audit

Our Smart Contracts Audit Services Tech Stack