• LOGIC
  • INTERFACE
  • HUMAN
  • REPORT

How to audit smart contracts with your AI

Connect Harmonyscan to your AI client to pull real-time blockchain data. Once connected, your agent can inspect code and interface definitions directly.

Ask AI about this page

Short answer

How can I use AI to audit smart contracts?

Your AI uses the Harmonyscan MCP to fetch verified source code and ABIs for any contract on the Harmony network. This allows your agent to map out function parameters and scan logic for flaws. You get a technical breakdown of the contract's structure and potential risks.

Audit outcomes

What your AI finds

The specific data points your agent extracts from the blockchain.

LOGIC

Code vulnerability scan

The AI reads the source code to find logical errors or common exploits. You get a list of suspicious code patterns.

INTERFACE

ABI mapping

Your agent uses the ABI to understand how to interact with the contract. This clarifies all function signatures and input types.

HUMAN

Manual review required

The AI identifies high-risk areas that need your eyes. You decide which specific lines of code require a deep dive.

REPORT

Security summary

The AI compiles its findings into a structured overview. You can use this to document the contract's safety profile.

The workflow

What your AI does when the contract address arrives.

The AI moves from raw data retrieval to logical analysis.

  1. Fetch source code

    The agent pulls the exact, verified source code from the blockchain to ensure it isn't analyzing a fake or unverified version.

    get_source_code

  2. Retrieve ABI

    Your AI gets the Application Binary Interface to understand the contract's functions, arguments, and return values.

    get_abi

  3. Analyze logic

    With the code and ABI in hand, the AI maps out the contract's execution flow and identifies potential edge cases.

    get_source_codeget_abi

  4. Flag vulnerabilities

    The agent compares the code against known patterns to highlight where the logic might fail or be exploited.

    get_source_code

Try it

Copy these to start.

Use these prompts to kick off an audit.

Starting points

Replace the contract addresses with the specific ones you want to check.

Harmonyscan Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_hCFVIwT7pV7N02KfZ6z0UBU5q1pzYMKhyLIS3MJh/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — Harmonyscan capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "harmonyscan-harmony-one-block-explorer-api-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_hCFVIwT7pV7N02KfZ6z0UBU5q1pzYMKhyLIS3MJh/mcp"
    }
  }
}
Copy into chat04

  • Get the source code and ABI for contract 0x123... and tell me what this contract does.

  • Analyze the logic in the source code for 0x456... and look for reentrancy risks.

  • Using the ABI for 0x789..., list all the public functions and their required parameters.

  • Check the source code for 0xabc... to see if the ownership logic is properly implemented.

  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Start here

Connect Harmonyscan once, then ask.

Just link the MCP to your client. Your credentials stay encrypted, and you can start auditing immediately.

Connect Harmonyscan to your AI

FAQ

How this task behaves

  • 01

    Can the AI fix the smart contract bugs for me?

    No. The AI can identify and explain bugs, but you must write and deploy any code changes yourself.

  • 02

    Does the AI audit contracts on Ethereum?

    No. This MCP is specifically designed for the Harmony One network.

  • 03

    Can the AI execute transactions on the blockchain?

    No. The tools only allow the AI to read source code and ABIs. It cannot send transactions or interact with the state.

  • 04

    What happens if the contract isn't verified on the explorer?

    If the source code isn't verified, the get_source_code tool won't find anything to analyze.

  • 05

    Does the AI replace a professional auditor?

    No. The AI is a tool to speed up your own investigation. It can miss subtle vulnerabilities that a human expert would catch.

  • More questions about Harmonyscan? See everything the Harmonyscan Connector can do

Connect Harmonyscan to Claude, Cursor, ChatGPT & more