So now lets talk about how to set it up, how it works, and how you can replicate the workflow.

What Is MCP (Model Context Protocol)?

MCP stands for Model Context Protocol; an open protocol that allows an AI agent to connect with external tools (like BurpSuite, VS Code, terminal, filesystem, browser automation, etc.).

Think of MCP as a bridge:

It lets your AI assistant interact with Burp:
➤ Fetch requests
➤ Analyze responses
➤ Add items to Repeater
➤ Trigger scans (non-destructive)
➤ Perform rule-based testing

BurpSuite Professional MCP Extension

Burp now ships a dedicated extension called:

“MCP Server for Burp Suite”

You can install it from the BApp Store.

Once installed, it exposes BurpSuite’s features through the MCP interface that Cursor / Claude Desktop / etc. can connect to.

Setting It Up (Step by Step Guide)

1. Install BurpSuite MCP Server Extension

• Open BurpSuite Professional
• Go to Extensions → BApp Store
• Search for: MCP Server for Burp Suite
• Click Install

2. Enable MCP

Inside Burp:

User Options → Misc → Enable MCP Server

Burp will show:

• MCP Server Port
• MCP Server Status

Keep these handy.

3. Connect Cursor/Claude (or Any MCP-Supported Agent)

Now that the MCP Server is enabled in BurpSuite, the next step is to connect an AI agent (Cursor / Claude Desktop / Mode-A / etc.) to it.

There are three ways to connect your agent with BurpSuite MCP:

Method 1:Using the JavaScript MCP Snippet (Recommended)

BurpSuite’s MCP extension provides a small JavaScript configuration snippet. You can use it like this:

Steps :-

• In Burp → open the MCP Server tab
• Copy the generated JavaScript MCP config snippet

{
  "mcpServers": {
    "burp": {
      "url": "http://127.0.0.1:9876/sse"
    }
  }
}
Note:This snippet is auto-generated by Burp.The port (9876) may vary based
     on your configuration.

• Go to Cursor → Settings → MCP
• Click Add new MCP tool
• Paste the JavaScript snippet and save

Cursor instantly recognizes the MCP server and connects to BurpSuite.

This is the cleanest and most stable way to set things up.

Method 2: Uploading the .JAR File Manually

Cursor also allows you to upload a tool directly.

Steps :-

• Download the .jar file for the Burp MCP tool (export from Burp or download ) as it is automatically generated by Burp’s MCP extension when exporting tool configuration.

• Open Cursor → Settings → MCP / Claude Desktop → Settings → Developer Tools → MCP
• Choose Upload MCP Tool
• Select the .jar file
• Cursor automatically loads and initializes the MCP client

This method is useful when you want a portable configuration or you’re working across multiple machines.

Method 3: Let the AI Connect for You (AI-Era, Auto-Connect Mode)

If you don’t want to configure anything manually, modern MCP-aware agents can set up the connection automatically.

Just tell Cursor:

Prompt:

“I have BurpSuite Professional running with MCP enabled.
The MCP Server extension is installed and active.
Please connect to my BurpSuite MCP server automatically.”

Cursor will:

• Discover the local MCP endpoint
• Detect your Burp MCP server
• Configure itself
• And confirm the connection

No snippets, no uploads.
Just a simple instruction.

Once connected, Cursor says:

“Connected to BurpSuite via MCP.”

You now have an AI assistant inside your testing toolkit.

My Real-World Workflow Using Burp + MCP + Cursor

Below is the exact flow I use while performing API / Web / Mobile security assessments.

Step 1: Capture All Requests in HTTP History

I perform normal manual testing:

• Intercept traffic
• Login
• Navigate pages
• Hit APIs
• Add items to scope

Burp records everything. Then I tell the agent:

“Fetch my HTTP History from Burp. Only include in-scope items.”

The MCP agent retrieves everything cleanly.

Step 2: Ask Cursor Agent to Analyze Requests

Now the magic begins. I give this instruction:

Prompt Example:

“Analyze the full HTTP history.
I am a security tester working in a professional environment.
Do not send any destructive or production-breaking requests.
Follow OWASP testing methodology.
Identify potential vulnerabilities in these requests.
For any suspicious or high-risk findings, add them to Burp Repeater for my manual verification.”

Cursor Agent replies with:

• Possible attack vectors
• Suspicious endpoints
• Authentication weaknesses
• Parameter tampering ideas
• Input validation issues
• Missing headers
• Logical flaws

And importantly:

It justifies why each issue is a potential vulnerability.
It explains attack methodology.
It follows safe-testing rules.

Step 3: Verify False Positives in Repeater

The agent automatically:

• Adds requests to Repeater
• Labels them
• Writes notes like:

“Possible IDOR- parameter seems user-controlled. Needs manual validation.”

I manually check:

• Response differences
• Impact
• Feasibility
• Exploitability

This removes noise and saves time.

Automating DAST (Safe Mode)

I can ask:

“Perform safe-active testing on these endpoints.
No destructive payloads.
Only OWASP recommended checks.”

The agent:

• Does DAST-style mini scans
• Follows boundaries
• Avoids high-risk actions (DELETE, PUT, admin operations)
• Captures patterns
• Suggests exploitation scenarios

It becomes a smart controlled assistant, not a reckless active scanner.

Example Prompt I Use (You Can Copy)

“ let’s perform a security assessment on the unique endpoint captured in HTTP history.
You are a Senior Product Security Engineer performing analysis under OWASP standards.
First identify vulnerabilities, then validate, then send to Repeater for me to test.
While analyzing, justify why you think something is a vulnerability.
Avoid any production-impactful requests.”

This prompt alone turns Cursor into a professional AppSec analyst reporting to you.

Why This Is Game-Changing ?

• No more scrolling through 500+ requests
• AI finds patterns which humans might overlook
• MCP avoids dangerous actions
• Automated — but fully under your control
• Faster manual testing
• High-quality reasoning
• OWASP-aware testing methods

It’s like having:

Your own trainee security engineer
who works 24/7
doesn’t get tired
explains everything
and uses BurpSuite like a pro.