Resend MCP Server

A comprehensive Model Context Protocol (MCP) server that provides seamless integration with Resend's email delivery platform. This server enables AI assistants and applications to send transactional emails, manage domains, handle contact lists, and execute broadcast campaigns through a unified interface. Whether you need to send a single email or orchestrate complex email workflows, this server provides all the tools necessary to leverage Resend's powerful email infrastructure.

Overview

The Resend MCP server acts as a bridge between your AI applications and Resend's email API, exposing a rich set of capabilities for email operations. It handles everything from basic email sending to advanced features like batch processing, domain verification, API key management, and audience segmentation. The server streamlines email operations by providing structured interfaces for all major Resend features, making it easy to integrate professional email capabilities into your workflows.

Features

• Email Delivery: Send single or batch emails with full HTML/text support, attachments, and custom headers
• Domain Management: Add, verify, configure, and manage email domains with tracking settings
• API Key Administration: Create and manage API keys with granular permission controls
• Audience Management: Build and maintain contact lists for broadcast campaigns
• Contact Operations: Add, list, and remove contacts from audiences
• Broadcast Campaigns: Send emails to entire audiences with a single operation
• Email Tracking: List and retrieve details of sent emails with filtering capabilities

Tools

send_email

Send a single email via Resend with comprehensive customization options.

Required Parameters:

• from (string): Sender email address (must be from a verified domain)
• to (string or array): Recipient email address(es)
• subject (string): Email subject line

Optional Parameters:

• html (string): HTML content of the email
• text (string): Plain text content of the email
• cc (string or array): CC recipients
• bcc (string or array): BCC recipients
• reply_to (string or array): Reply-to address(es)
• headers (object): Custom email headers as key-value pairs
• attachments (array): File attachments with filename, content (base64 encoded), and optional content_type
• tags (array): Email tags for categorization, each with name and value properties

send_batch_emails

Send multiple emails in a single request for improved efficiency, supporting up to 100 emails per batch.

Required Parameters:

• emails (array): Array of email objects, each containing the same structure as the send_email tool (limited to 100 items)

list_emails

Retrieve a list of sent emails with optional filtering capabilities.

Optional Parameters:

• from (string): Filter by sender email address
• to (string): Filter by recipient email address
• subject (string): Filter by subject line
• limit (number): Number of results to return (1-100)
• offset (number): Number of results to skip for pagination

add_domain

Add a new domain to your Resend account for sending emails.

Required Parameters:

• name (string): Domain name (e.g., example.com)

Optional Parameters:

• region (string): AWS region for the domain (options: us-east-1, eu-west-1, sa-east-1)

list_domains

List all domains configured in your Resend account. No parameters required.

verify_domain

Verify a domain after DNS records have been properly configured.

Required Parameters:

• domain_id (string): ID of the domain to verify

update_domain

Update tracking settings for a specific domain.

Required Parameters:

• domain_id (string): ID of the domain to update

Optional Parameters:

• open_tracking (boolean): Enable or disable open tracking
• click_tracking (boolean): Enable or disable click tracking

delete_domain

Remove a domain from your Resend account.

Required Parameters:

• domain_id (string): ID of the domain to delete

create_api_key

Create a new API key with specified permissions and optional domain restrictions.

Required Parameters:

• name (string): Name for the API key

Optional Parameters:

• permission (string): Permission level (options: full_access, sending_access)
• domain_id (string): Restrict the key to a specific domain

list_api_keys

List all API keys in your Resend account. No parameters required.

delete_api_key

Delete an API key from your account.

Required Parameters:

• api_key_id (string): ID of the API key to delete

create_audience

Create a new audience (contact list) for organizing recipients of broadcast emails.

Required Parameters:

• name (string): Name for the audience

list_audiences

List all audiences in your Resend account. No parameters required.

delete_audience

Delete an audience and all its associated contacts.

Required Parameters:

• audience_id (string): ID of the audience to delete

add_contact

Add a contact to an existing audience.

Required Parameters:

• audience_id (string): ID of the target audience
• email (string): Contact email address (must be valid email format)

Optional Parameters:

• first_name (string): Contact's first name
• last_name (string): Contact's last name
• unsubscribed (boolean): Whether the contact is unsubscribed

list_contacts

List all contacts within a specific audience.

Required Parameters:

• audience_id (string): ID of the audience

remove_contact

Remove a contact from an audience.

Required Parameters:

• audience_id (string): ID of the audience
• contact_id (string): ID of the contact to remove

create_broadcast

Send a broadcast email to all contacts in an audience.

Required Parameters:

• audience_id (string): ID of the target audience
• from (string): Sender email address
• subject (string): Email subject line

Optional Parameters:

• html (string): HTML content of the email
• text (string): Plain text content of the email
• reply_to (string): Reply-to address

Resource Templates

The server provides structured access to Resend resources through URI templates, allowing you to retrieve detailed information about specific entities.

email

Access details of a specific sent email.

URI Template: resend://email/{email_id}

Retrieve comprehensive information about an email by its unique identifier, including delivery status and metadata.

domain

Access details of a specific domain.

URI Template: resend://domain/{domain_id}

Get detailed information about a domain, including verification status, DNS records, and tracking configurations.

audience

Access details of a specific audience.

URI Template: resend://audience/{audience_id}

Retrieve information about an audience, including metadata and contact statistics.

contact

Access details of a specific contact within an audience.

URI Template: resend://contact/{audience_id}/{contact_id}

Get detailed information about a contact, including subscription status and personal details.

api-key

Access details of a specific API key.

URI Template: resend://api-key/{api_key_id}

Retrieve information about an API key, including its permissions and domain restrictions.

Use Cases

The Resend MCP server enables a wide range of email-related workflows:

Transactional Emails: Send order confirmations, password resets, and notifications triggered by user actions with full customization and attachment support.

Batch Processing: Efficiently send multiple emails in a single operation, ideal for sending personalized messages to multiple recipients or processing queued email jobs.

Domain Management: Programmatically add new domains, verify DNS configurations, and manage tracking settings across multiple domains.

Marketing Campaigns: Build audiences, manage contact lists, and execute broadcast campaigns to engage with subscribers.

Email Analytics: Track sent emails, filter by various criteria, and retrieve detailed information about email delivery and engagement.

Security and Access Control: Create API keys with specific permissions and domain restrictions to ensure secure, granular access to your email infrastructure.

The server's comprehensive toolset makes it suitable for applications ranging from simple notification systems to complex multi-tenant email platforms requiring sophisticated audience segmentation and campaign management.