Smart Contract Audit & Blockchain audit

We entail diverse and elaborate strategies to make sure that your system is safe and works as intended.

About Smart contract Audit


Smart contracts are prone to vulnerabilities and due to those, the project could lose its investments and reputation. In order to build trust smart contract audit is highly cardinal.


More than $3.2 Billions are stolen from crypto projects in 2021, to ensure no such thing happens moving forward, a smart contract audit is crucial.

Digital Assests Stolen

More than $8 billion are lost in digital assets which shows that critical errors may put your project at a risk. But they can be preventable if the protocol has been audited.

Audit Process

  • 01 - Reconnaissance

    The primary goal of the first phase is to build up clarity with respect to the intended workings of the codebase. Initially, this is attained through rigorous internal discussions on the whitepaper/ architecture document provided. This helps build an initial understanding of the system which leads to the building of test-case scenarios. After this phase, the auditors end up with preliminary semantics of the system.
  • 02 - Code Review

    Regardless of the language used, we make sure that your code is in accordance with the latest standards of code correctness. Starting off, our manual code review is vulnerability specific; this includes all publicly reported issues as well as our own registry of errors. After that, an automated review is carried out using multiple tools and any flags raised are retested. After static analysis, we move towards the extensive execution of the test cases in search of any vulnerabilities.
  • 03 - Formal Verification

    In order to provide an extra layer of fortification, we use certain techniques to formally verify all functionalities of the code. Being an extensive process, formal verification is available upon request. This includes symbolic execution using Scribble/ k-language and fuzzing using Echidna.
  • 04 - Certification

    A detailed initial audit report is shared and the findings are communicated to the stakeholders in an inclusive manner. After the fixes have been made, a final review is carried out which results in another report being issued that certifies that the smart contract is free from potential threats and blockchain risks. However, we do not claim that the contracts are resistant to any kind of zero-day attack vectors and penetration techniques.

audit services we offer

ethereum audit

polygon audit

bsc audit

solana audit

cosmos audit

protocol audit



Web3 Assets We Secure

Layer 01

ethereum audit
solana audit
solana audit
tron audit
Near audit
binance smart chain audit
BNB Chain audit

Layer 02

polygon audit
Polygon  audit

Layer 03


Fortify The Move Towards Decentralization With BlockApex

Add trust and value to your project through smart contract audit. Keep your project safe and secure!


You will be provided with an “Audit by BlockApex” badge which you can integrate into your website.

Security Partner:

Sign up BlockApex as your “Security Partner” and we would exclusively offer you an extended service package for your project marketing.

Social Media Coverage:

After the security audit is completed, BlockApex would feature your detailed Audit Report exclusively on all its social media channels including the website.

audit reports

Lightlink Bridge: BlockApex WhiteBox Code Review Report

the source code review of Lightlink Bridge Validator and Keeper. The purpose of the assessment was to perform the whitebox testing of the Bridge’s validator and Keeper before going into production and identify potential threats and vulnerabilities.

Your Data, Your Rules: The Blockchain Way

Data has become the vigor of the digital age, powering industries, economies, and societies worldwide. Whether personal information, financial records, intellectual property, or trade secrets, data is the driving force behind decision-making, innovation, and business operations. However, data security has emerged as a paramount concern with the increasing digitization of our lives and businesses.

BonqDAO - February 3, 2023

The BonqDAO security breach that occurred on February 2, 2023, had far-reaching consequences for the platform, its users, and the wider DeFi ecosystem. The attack exploited a vulnerability in the integration of the Tellor Oracle system, which BonqDAO relied on for obtaining token price information.


1. Why do we need a smart contract audit?

Projects that interact with blockchains using smart contracts do not have sufficient in-house security expertise and therefore they rely on external experts who have domain expertise to assure maximum possible security for their project in order to prevent potential reputational/ financial losses.

2. How much does a smart contract audit cost?

It generally depends on the scope of the project, its complexity and the number of lines of the code.

3. What is the tentative timespan for an audit to complete?

The time of completion of the audit depends on the nature of the smart contract, its architecture and its complexity. BlockApex always sacrifices urgency over security. However, we put in extra hours in order to push to the deadline.

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Having questions regarding what we do and how we do it? Fill up the form and we will reach out to you swiftly.
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