MailKite

What is MailKite?

MailKite provides a developer-focused email infrastructure solution that eliminates the need to configure and maintain traditional mail servers. It allows applications to receive emails via webhooks and send messages through a simple API, handling all delivery complexities. The service is designed for developers building products that require email functionality, particularly those working with AI agents through the Model Context Protocol. It solves problems of email server management, domain configuration, and reliable delivery across unlimited domains, offering a free tier for basic needs while scaling for production applications.

Key features

• Receive email via webhook notifications
• Send email through a single API call
• No mail server configuration required
• Works across unlimited domains
• Free tier available
• MCP-native integration for AI agents

Use cases

• AI agent applications needing email communication
• Product notification systems sending transactional emails
• Customer support platforms receiving user inquiries
• Automated workflows that trigger on incoming emails
• Prototyping projects requiring email functionality without infrastructure
• Multi-tenant applications managing emails for multiple domains