Is it safe to check my password using this tool?

Yes. This agent uses the K-Anonymity model. Only the first 5 characters of your password's SHA-1 hash are sent to the HIBP server. The full password or full hash never leaves your local environment, making it cryptographically safe.

Where can I get an API Key?

You can purchase an API key directly from the [HIBP website](https://haveibeenpwned.com/API/Key). It requires a small monthly subscription to prevent mass scraping and abuse.

Have I Been Pwned MCP Server for Cursor 5 tools — connect in under 2 minutes

Name: Have I Been Pwned
Availability: InStock
Author: Vinkius

docs.cursor.com/context/model-context-protocol

Built by Vinkius GDPR 5 Tools IDE

Cursor is an AI-first code editor built on VS Code that integrates LLM-powered coding assistance directly into the development workflow. Its Agent mode enables autonomous multi-step coding tasks, and MCP support lets agents access external data sources and APIs during code generation.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

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Vinkius supports streamable HTTP and SSE.

RecommendedModern Approach — Zero Configuration

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The modern way to manage MCP Servers — no config files, no terminal commands. Install Have I Been Pwned and 2,500+ MCP Servers from a single visual interface.

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Classic Setup·json

{
  "mcpServers": {
    "have-i-been-pwned": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Fully ManagedVinkius Servers

60%Token savings

High SecurityEnterprise-grade

IAMAccess control

EU AI ActCompliant

DLPData protection

V8 IsolateSandboxed

Ed25519Audit chain

<40msKill switch

Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About Have I Been Pwned MCP Server

Connect your AI agent to Have I Been Pwned, the internet's most trusted resource for tracking data breaches. Protect yourself by staying informed about where your sensitive information may have been leaked.

Cursor's Agent mode turns Have I Been Pwned into an in-editor superpower. Ask Cursor to generate code using live data from Have I Been Pwned and it fetches, processes, and writes — all in a single agentic loop. 5 tools appear alongside file editing and terminal access, creating a unified development environment grounded in real-time information.

What you can do

Account Search — Instantly check if an email or username has been involved in any of the thousands of tracked data breaches
Paste Search — Discover if your information is circulating on public paste sites (like Pastebin)
Password Safety — Safely verify if a password has ever appeared in a breach using the secure K-Anonymity model (your full password is never sent to the server)
Breach Catalog — Explore the full history of major internet data breaches, including what types of data were stolen (passwords, emails, phone numbers, etc.)

The Have I Been Pwned MCP Server exposes 5 tools through the Vinkius. Connect it to Cursor in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect Have I Been Pwned to Cursor via MCP

Follow these steps to integrate the Have I Been Pwned MCP Server with Cursor.

Open MCP Settings

Press Cmd+Shift+P (macOS) or Ctrl+Shift+P (Windows/Linux) → search "MCP Settings"

Add the server config

Paste the JSON configuration above into the mcp.json file that opens

Save the file

Cursor will automatically detect the new MCP server

Start using Have I Been Pwned

Open Agent mode in chat and ask: "Using Have I Been Pwned, help me..." — 5 tools available

Why Use Cursor with the Have I Been Pwned MCP Server

Cursor AI Code Editor provides unique advantages when paired with Have I Been Pwned through the Model Context Protocol.

Agent mode turns Cursor into an autonomous coding assistant that can read files, run commands, and call MCP tools without switching context

Cursor's Composer feature can generate entire files using real-time data fetched through MCP — no copy-pasting from external dashboards

MCP tools appear alongside built-in tools like file reading and terminal access, creating a unified agentic environment

VS Code extension compatibility means your existing workflow, keybindings, and extensions all work alongside MCP tools

Have I Been Pwned + Cursor Use Cases

Practical scenarios where Cursor combined with the Have I Been Pwned MCP Server delivers measurable value.

Code generation with live data: ask Cursor to generate a security report module using live DNS and subdomain data fetched through MCP

Automated documentation: have Cursor query your API's tool schemas and generate TypeScript interfaces or OpenAPI specs automatically

Infrastructure-as-code: Cursor can fetch domain configurations and generate corresponding Terraform or CloudFormation templates

Test scaffolding: ask Cursor to pull real API responses via MCP and generate unit test fixtures from actual data

Have I Been Pwned MCP Tools for Cursor (5)

These 5 tools become available when you connect Have I Been Pwned to Cursor via MCP:

check_password_safety

Uses k-anonymity; your full password is never sent to the server. Check if a password has ever appeared in a data breach (safe, k-anonymity search)

get_breach_details

Get details for a specific data breach by name

list_all_breaches

List all data breaches currently recorded in the system

search_account_breaches

Search for all data breaches an email or account has been involved in

search_account_pastes

Search for all public pastes (like Pastebin) containing the email or account

Example Prompts for Have I Been Pwned in Cursor

Ready-to-use prompts you can give your Cursor agent to start working with Have I Been Pwned immediately.

"Has my email 'test@example.com' been involved in any breaches?"

"Is the password 'P@ssword123' safe to use?"

Troubleshooting Have I Been Pwned MCP Server with Cursor

Common issues when connecting Have I Been Pwned to Cursor through the Vinkius, and how to resolve them.

Tools not appearing in Cursor

Ensure you are in Agent mode (not Ask mode). MCP tools only work in Agent mode.

Server shows as disconnected

Check Settings → Features → MCP and verify the server status. Try clicking the refresh button.

Have I Been Pwned + Cursor FAQ

Common questions about integrating Have I Been Pwned MCP Server with Cursor.

What is Agent mode and why does it matter for MCP?

Agent mode is Cursor's autonomous execution mode where the AI can perform multi-step tasks: reading files, editing code, running terminal commands, and calling MCP tools. Without Agent mode, Cursor operates in a simpler ask-and-answer mode that doesn't support tool calling. Always ensure you're in Agent mode when working with MCP servers.

Where does Cursor store MCP configuration?

Cursor looks for MCP server configurations in a mcp.json file. You can configure servers at the project level (.cursor/mcp.json in your project root) or globally (~/.cursor/mcp.json). Project-level configs take precedence.

Can Cursor use MCP tools in inline edits?

No. MCP tools are only available in Agent mode through the chat panel. Inline completions and Tab suggestions do not trigger MCP tool calls. This is by design — tool calls require user visibility and approval.

How do I verify MCP tools are loaded?

Open Settings → Features → MCP and look for your server name. A green indicator means the server is connected. You can also check Agent mode's available tools by clicking the tools dropdown in the chat panel.