How do I find my Inbox ID?

Use the `list_all_inboxes` tool to see a comprehensive list of all your MailSlurp addresses along with their unique IDs.

What is the benefit of the 'wait-for' tools?

They hold the connection until an email arrives, making it easy to test asynchronous processes (like password resets) without writing complex retry loops.

Where do I find my API Key?

Log in to your MailSlurp dashboard and copy the API key from the Home or API Settings section.

MailSlurp MCP Server for Cursor 8 tools — connect in under 2 minutes

Name: MailSlurp
Availability: InStock
Author: Vinkius

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

Built by Vinkius GDPR 8 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

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Open in ChatGPT Open in Claude Open in Perplexity

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RecommendedModern Approach — Zero Configuration

Vinkius Desktop App

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

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Classic Setup·json

{
  "mcpServers": {
    "mailslurp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

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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 MailSlurp MCP Server

Connect your MailSlurp account to any AI agent to automate your email testing and asynchronous message management. This MCP server enables your agent to create virtual inboxes, send and receive emails, and handle complex automation scenarios using long-polling 'wait-for' methods directly from natural language interfaces.

Cursor's Agent mode turns MailSlurp into an in-editor superpower. Ask Cursor to generate code using live data from MailSlurp and it fetches, processes, and writes. all in a single agentic loop. 8 tools appear alongside file editing and terminal access, creating a unified development environment grounded in real-time information.

What you can do

Virtual Inbox Management — Create random or custom email addresses and list all managed inboxes in your account
Email Automation — Long-poll for the latest incoming email or wait until a specific email count is reached for testing suites
Message Retrieval — List and inspect messages received by any virtual address, including full HTML and text bodies
Outbound Capability — Send emails directly from any of your MailSlurp addresses programmatically
Infrastructure Maintenance — Permanently delete individual messages or entire virtual inboxes via simple commands
Metadata Inspection — Retrieve detailed technical headers and attachment metadata for any received email

The MailSlurp MCP Server exposes 8 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 MailSlurp to Cursor via MCP

Follow these steps to integrate the MailSlurp 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 MailSlurp

Open Agent mode in chat and ask: "Using MailSlurp, help me...". 8 tools available

Why Use Cursor with the MailSlurp MCP Server

Cursor AI Code Editor provides unique advantages when paired with MailSlurp 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

MailSlurp + Cursor Use Cases

Practical scenarios where Cursor combined with the MailSlurp 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

MailSlurp MCP Tools for Cursor (8)

These 8 tools become available when you connect MailSlurp to Cursor via MCP:

create_random_inbox

Create a new random email address

delete_specific_inbox

Delete an inbox and its emails

get_email_details

Get complete content for a specific email

list_all_inboxes

List all MailSlurp inboxes

list_inbox_emails

List emails received by an inbox

send_email_from_inbox

Requires recipient and content. Send an email using a MailSlurp address

wait_for_email_count

Wait until an inbox has a certain number of emails

wait_for_latest_email

Returns the latest one immediately if present. Long-poll for the next incoming email

Example Prompts for MailSlurp in Cursor

Ready-to-use prompts you can give your Cursor agent to start working with MailSlurp immediately.

"Create a new random inbox in MailSlurp."

"Wait for the next email to arrive in inbox 'inbox-xyz'."

"Send an email to 'user@example.com' from inbox 'inbox-xyz'."

Troubleshooting MailSlurp MCP Server with Cursor

Common issues when connecting MailSlurp 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.

MailSlurp + Cursor FAQ

Common questions about integrating MailSlurp 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.