DeFi: Smart Contracts and Security Audit

1300+ smart contracts have been audited since 2017

  • No Bugs

    Positive reputation built upon fixing problems according to the audit report

  • No Exploits

    A thorough audit allows to reduce the likeliness of fraud and loss of assets

  • User Confidence

    Customers' and users' confidence to the product after the audit

  • Brand Awareness

    After the smart contract audit is completed, we publish the report, which allows our subscribers to get acquainted with your project

Smart contract audit process



Recieving the specification of the code after smart constract audit order from you



Sending you a quote and timeline


Smart contract audit

Starting the audit



Sending the preliminary audit report to you



Fixing the issues from your side according to the audit report recomendations



Examining fixes, updating and publishing the report

What Smart Contract Audit service is?

Hackers and intruders can find vulnerabilities even in seemingly perfect code. Periodic audits in this case are the best solution to the problem. Paying attention to weak points during the audit is able anticipate illegal actions and fix bugs in a timely manner.

  • Just a small part of actions we perform during the audit consists of static analysis of the code, smart contract audit using trusted tools, tests of all the vulnerabilities have been found, efficiency and optimization checks and drawing up a detailed audit report.

  • Following the recommendations of the audit report allows to get the best possible positive security score and become more attractive to the customers. Regular audits let the smart contract become more safe and optimized. Remember: smart contract audit costs much less than the customers' trust loss.

  • Self-audits are important as well but these types of audits are less full and deep than professional smart contract security audit. From our side we offer all the experience and professionalism we have and provide high level audit services. You can be absolutely sure that we'll conduct an audit at the highest level.

Our most popular audits

HashEx works with the most well-known blockchain brands

Frequently Asked Questions

  • Audits

      What is the process of an audit?

      After the client contacts HashEx, the company reviews the code and estimates the price. Then the audit is conducted and a preliminary report is formed. After that, the report is returned to the team and they review it and fix the issues. The final step is the final audit report that is published on HashEx social media.

      What types of contracts does HashEx audit?

      HashEx audits contracts of any difficulty: token Standards ERC20, ERC721, ERC1155. Aside from tokens, HashEx audits smart contracts for DAOs, staking, NFTs, DApps, DEXs, Farms (MasterChefs and others), Lending, marketplaces, auctions, games, bridges.

      What languages does HashEx audit?

      HashEx performs audits for Solidity and Rust languages. Requests for other audits can be discussed by contacting our team.

      What blockchains does HashEx work with?

      HashEx audits contracts for most blockchains that use Solidity and/or Rust languages: Ethereum, BSC, Solana, Avalanche, xDai, Near, Aurora, Terra.

      Does a passed audit mean that the project is safe?

      A finalized audit, unfortunately, does not guarantee project’s safety. Before investing it’s good to recheck the existing issues and vulnerabilities, presented in the audit report. It also helps if the project’s lp is locked, and the project’s team is known publicly or has passed a KYC by a tire one security company.

      How to read a HashEx audit report?

      HashEx report consists of several blocks: aside from disclaimer, HashEx reviews submitted contracts, outlining the main issues in each contract. Auditors state the issue and present a short description with the potential danger of said issue. Note that there is a table of contents, in this case, audited contracts. It’s important to make sure that all the contracts have indeed been audited and that a client didn’t add new ones that haven’t been reviewed.

      What separates a HashEx audit from any other one?

      HashEx team has a rich background in DeFi security. The company itself has over 6 years of experience in DeFi security and has performed over 1300 audits. Our team of auditors has a vast library of known issues and thanks to manual reviews, they have the ability to find even minor errors. The reviews are performed first by an automated tool, then by two separate teams. This process is aimed at eliminating the possibility of missed vulnerabilities.

Let's Work Together! Write now.