Zed Resend MCP Server

Overview

The Zed Resend MCP Server bridges the gap between AI assistants and email communication by exposing a lightweight, protocol‑driven interface for sending messages through Resend. Instead of writing custom HTTP clients or handling SMTP intricacies, developers can issue high‑level MCP calls that the server translates into Resend API requests. This removes boilerplate and lets AI workflows focus on content generation, while the server guarantees reliable delivery, authentication, and compliance with Resend’s policies.

At its core, the server accepts standard MCP resources such as , , and scheduling parameters. When an AI assistant sends a request, the server validates the payload, injects authentication headers from the configured API key, and forwards the data to Resend. The result is a fully‑featured email service that supports plain text, HTML, multiple recipients, CC/BCC, reply‑to routing, and file attachments sourced locally or via remote URLs. Because the server runs inside Zed, it inherits Zed’s secure configuration management—API keys and sender addresses are stored in the editor’s settings file, ensuring that secrets never leave the local environment.

Key capabilities include:

• Versatile content – send both plain text and rich HTML emails, making it suitable for newsletters, notifications, or transactional messages.
• Recipient flexibility – support for multiple recipients, CC and BCC lists, and custom reply‑to addresses enables complex distribution scenarios.
• Attachment handling – attach local files or reference remote URLs, allowing developers to include reports, images, or documents without manual uploads.
• Scheduling – schedule deliveries for future timestamps, enabling time‑zone aware dispatch or drip campaigns.
• Environment awareness – configuration can be swapped per environment, allowing separate keys for development and production without code changes.

In practice, this MCP server shines in scenarios where AI assistants need to interact with external services. For example, a customer‑support bot can generate personalized replies and immediately trigger an email through Resend without exposing credentials. A data‑analysis pipeline can send automated reports to stakeholders, while a CI/CD system can notify teams of build statuses. Because the server abstracts the Resend API, developers can focus on business logic and user experience rather than plumbing details.

Unique advantages of the Zed Resend MCP Server include its tight integration with the Zed editor, which provides a unified development environment for AI tooling and code. The server’s configuration is declarative and version‑controlled via , simplifying onboarding for teams. Finally, by leveraging the unofficial package, it offers a ready‑made implementation that aligns closely with Resend’s official documentation while remaining fully compliant with MCP standards.