Frequently Asked Questions

MCPinator is a web-based client for testing and interacting with Model Context Protocol (MCP) servers. It provides an interactive terminal interface, real-time server information display, and the ability to save server configurations for easy access.

NO. MCPinator is explicitly designed for TESTING AND DEVELOPMENT ONLY. Do not use it with:
  • Production systems
  • Sensitive or confidential data
  • Production API keys
  • Personal information
  • Any system where security or data integrity matters

You can use MCPinator without an account for basic testing. However, creating an account allows you to:
  • Save MCP server configurations
  • Store API keys for quick access
  • Manage multiple server connections
Remember: only use test accounts and test API keys!

We provide NO security guarantees.
  • API keys are stored in PLAINTEXT
  • Database is NOT encrypted
  • No guarantee against unauthorized access
  • This is a testing tool - treat all data as public

ABSOLUTELY NOT!

Never store production API keys in MCPinator. API keys are stored unencrypted and could be compromised. Only use test/development API keys that you don't care about.

  1. Enter the MCP server URL in the top input field
  2. Click the "Connect" button
  3. The connection will automatically initialize
  4. Use the terminal to send commands to the server

If you're logged in, you can also save server configurations for quick access later.

Connection Commands:
  • init - Initialize the MCP connection
Tool Commands:
  • tools/list - List available tools
  • tools/call <name> <json> - Call a tool
Resource Commands:
  • resources/list - List available resources
  • resources/read <uri> - Read a resource
Prompt Commands:
  • prompts/list - List available prompts
  • prompts/get <name> - Get a prompt
Utility Commands:
  • help - Show help
  • clear - Clear terminal
  • history - Show command history

Yes! Press Tab to autocomplete:
  • Command names
  • Tool names (when using tools/call)
You can also use ↑ and ↓ arrows to navigate through command history.

  1. Create an account or log in
  2. Click on your username in the top right
  3. Select "Settings"
  4. Add your MCP server configurations with optional API keys
  5. Click the bookmark icon next to the URL field to access saved servers

When you delete your account:
  • Your account information will be removed from the database
  • Your saved server configurations will be deleted
  • However, we cannot guarantee complete removal from backups or logs
  • Data may persist in various system logs

No. MCPinator acts as a proxy:
  1. Your browser sends requests to the MCPinator server
  2. MCPinator server forwards them to the MCP server
  3. Responses come back through MCPinator
This means:
  • All your requests pass through our server
  • Requests and responses may be logged
  • You avoid CORS issues

MCPinator works best with modern browsers:
  • Chrome 90+
  • Firefox 88+
  • Safari 14+
  • Edge 90+

Check the project repository for licensing information. MCPinator is built with:
  • Java 11 & Jetty 9.4
  • Bootstrap 5
  • xterm.js
  • SQLite

Since MCPinator is a testing tool with no guarantees, bug reports are appreciated but may not be addressed. If you find a bug, you can:
  • Check the project repository for issue tracking
  • Contact Garage274, LLC (though we provide no guarantee of response)
Remember: This is provided "AS IS" with no warranties.

Yes! MCPinator can be self-hosted. See the README for build and deployment instructions. You'll need:
  • Java 11+
  • Gradle (or use the wrapper)
  • A server to run it on
The default port is 3100, but you can specify a custom port.
Still Have Questions?

Remember: MCPinator is a testing tool with no support guarantees. For technical issues, check the documentation. For security concerns, remember our policy: use only test data you don't care about.

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