SendGrid MCP Server

A Model Context Protocol (MCP) server that provides comprehensive access to SendGrid's API v3 for email marketing, transactional email operations, dynamic template management, and detailed analytics. Features 154 tools covering all aspects of email management and performance analysis.

Built and maintained by a SendGrid engineer, as an independent project — not an official SendGrid product.

See RELEASES.md for what's changed in the latest release.

Features

• Marketing Automations: Create and manage email automation workflows
• Single Send Campaigns: Manage one-time email campaigns with detailed performance tracking
• Contact Management: Complete CRUD operations for contacts with advanced search and bulk operations
• Email Statistics & Analytics: Multi-dimensional performance analysis across browsers, devices, geography, and email providers with 13-month historical data
• Dynamic Segment Management: Create, update, and delete contact segments with complex filtering criteria that automatically refresh
• Dynamic Template Management: Create, manage, and version HTML email templates with Handlebars support for personalization
• Custom Fields Management: Define and manage additional contact data fields for enhanced targeting
• Mail Sending: Send transactional emails via SendGrid with full personalization support
• Sender Identity Management: Manage verified sender identities with authentication tracking
• Suppression Lists: Manage bounces, spam reports, and unsubscribes for deliverability optimization
• Account Settings: Access account details and configuration management
• Browser Integration: Quick links to SendGrid web interface for visual operations
• Read-Only Safety Mode: Secure operation mode prevents accidental data modification while maintaining full analytics access

Supported MCP Clients

✅ Claude Desktop - Official desktop app ✅ Claude Code - Official CLI tool ✅ Claude custom connectors - via Streamable HTTP (see Install the server) ✅ OpenAI Responses API / Apps SDK - via Streamable HTTP ✅ MCP Market - Hosted, one-click deploy, no install required (see Install the server) ✅ Cline - VS Code extension ✅ Zed Editor - Modern code editor ✅ Continue - VS Code autopilot ✅ Codex CLI - via Streamable HTTP ✅ Any MCP-compatible client

Getting Started

Follow these steps in order — by the end you'll have the server installed (or deployed), your SendGrid API key set, and your MCP client connected.

This is the actual request path, whichever client you end up using — some launch the server locally over stdio, others reach it over the network via Streamable HTTP (MCP Market, self-hosted), which adds a choice of client auth on top:

                                ┌──────────┐
                                │  Client  │
                                └────┬─────┘
              ┌──────────────────────┴───────────────────┐
              │                                          │
           stdio (local subprocess)        HTTP (network)
              │               auth: none | token | oauth │
              │                                          │
              └──────────────────────┬───────────────────┘
                                     ▼
                           ┌────────────────────┐
                           │     MCP Server     │
                           │    (this repo)     │
                           └─────────┬──────────┘
                                     │  SENDGRID_API_KEY
                                     │  (always required, any transport)
                                     ▼
                           ┌────────────────────┐
                           │    SendGrid API    │
                           └────────────────────┘

SENDGRID_API_KEY is required no matter which path you take. READ_ONLY=true (the default) is a further gate inside the MCP Server box — it blocks create/update/delete/send tools once a request is already in, regardless of which branch it arrived on. See Environment Variables for the full list of what you can configure.

1. Install the server

Install it locally if your client launches it itself, or go remote if it connects over the network instead.

Local (stdio) — for Claude Desktop, Claude Code, Cline, Zed, Continue, or any client that runs the server as a subprocess:

npm install -g sendgrid-mcp

This installs the sendgrid-mcp command globally, which your MCP client will launch as a subprocess. Requires Node.js 20+.

Remote (HTTP) — nothing to install locally; pick one:

export SENDGRID_API_KEY="SG.your_api_key_here"
export MCP_TRANSPORT=http
export MCP_AUTH_MODE=token
export MCP_AUTH_TOKEN="$(openssl rand -hex 32)"

sendgrid-mcp

export MCP_AUTH_MODE=oauth
export MCP_OAUTH_ISSUER="https://your-tenant.auth0.com"
export MCP_OAUTH_AUDIENCE="https://mcp.example.com"
export MCP_OAUTH_REQUIRED_SCOPES="sendgrid:read"
export MCP_PUBLIC_URL="https://mcp.example.com"

export MCP_OAUTH_ISSUER="https://YOUR_TENANT.auth0.com/"
export MCP_OAUTH_AUDIENCE="https://mcp.example.com"
export MCP_OAUTH_REQUIRED_SCOPES="sendgrid:read"

export MCP_OAUTH_ISSUER="https://YOUR_OKTA_DOMAIN/oauth2/YOUR_AUTH_SERVER_ID"
export MCP_OAUTH_AUDIENCE="api://sendgrid-mcp"
export MCP_OAUTH_REQUIRED_SCOPES="sendgrid:read"

export MCP_OAUTH_ISSUER="https://login.microsoftonline.com/YOUR_TENANT_ID/v2.0"
export MCP_OAUTH_AUDIENCE="api://YOUR_CLIENT_ID"
export MCP_OAUTH_REQUIRED_SCOPES="sendgrid.read"

export TLS_KEY_FILE=/etc/ssl/private/mcp.key
export TLS_CERT_FILE=/etc/ssl/certs/mcp.crt
export TLS_CA_FILE=/etc/ssl/certs/chain.pem   # optional intermediates

export TRUST_PROXY=true
export MCP_PUBLIC_URL="https://mcp.example.com"

{
  "model": "gpt-5",
  "tools": [{
    "type": "mcp",
    "server_label": "sendgrid",
    "server_url": "https://mcp.example.com/mcp",
    "authorization": "ACCESS_TOKEN"
  }],
  "input": "List my SendGrid automations"
}

2. Get your SendGrid API key

1. Go to SendGrid API Keys
2. Click "Create API Key"
3. Choose "Full Access" or select specific permissions
4. Copy the generated key (starts with SG.)

3. Configure your MCP client

https://link.mcpmarket.com/<your-username>/<your-server-name>/mcp

# Claude Code
claude mcp add --transport http sendgrid https://link.mcpmarket.com/<your-username>/<your-server-name>/mcp

# Codex CLI
codex mcp add sendgrid --url https://link.mcpmarket.com/<your-username>/<your-server-name>/mcp

{
  "mcpServers": {
    "sendgrid": {
      "command": "sendgrid-mcp",
      "env": {
        "SENDGRID_API_KEY": "SG.your_api_key_here",
        "READ_ONLY": "true"
      }
    }
  }
}

{
  "mcpServers": {
    "sendgrid": {
      "command": "sendgrid-mcp",
      "env": {
        "SENDGRID_API_KEY": "SG.your_api_key_here",
        "READ_ONLY": "false",
        "LOG_LEVEL": "info",
        "REQUEST_TIMEOUT": "30000"
      }
    }
  }
}

npm install -g @anthropic-ai/claude-code

{
  "mcpServers": {
    "sendgrid": {
      "command": "sendgrid-mcp",
      "env": {
        "SENDGRID_API_KEY": "SG.your_api_key_here",
        "READ_ONLY": "true"
      }
    }
  }
}

# Start Claude Code with SendGrid MCP
claude

# The SendGrid tools will be automatically available
# Ask Claude: "List my SendGrid automations"

{
  "mcpServers": {
    "sendgrid": {
      "command": "sendgrid-mcp",
      "env": {
        "SENDGRID_API_KEY": "SG.your_api_key_here",
        "READ_ONLY": "true"
      }
    }
  }
}

{
  "context_servers": {
    "sendgrid-mcp": {
      "command": "sendgrid-mcp",
      "env": {
        "SENDGRID_API_KEY": "SG.your_api_key_here",
        "READ_ONLY": "true"
      }
    }
  }
}

{
  "experimental": {
    "modelContextProtocolServers": [
      {
        "command": "sendgrid-mcp",
        "env": {
          "SENDGRID_API_KEY": "SG.your_api_key_here",
          "READ_ONLY": "true"
        }
      }
    ]
  }
}

# With environment variables
SENDGRID_API_KEY="SG.your_api_key_here" READ_ONLY="true" sendgrid-mcp

{
  "command": "sendgrid-mcp",
  "env": {
    "SENDGRID_API_KEY": "SG.your_api_key_here",
    "READ_ONLY": "true"
  }
}

Environment Variables

The server is configured entirely through environment variables. SENDGRID_API_KEY is the only required one.

READ_ONLY defaults to true. In this mode every tool is registered and visible, but operations that create, update, delete, or send are blocked at runtime with a clear error message — only list/get/search/browser-link tools actually run. This is the safest default while you're getting set up. See Read-Only Mode for the full breakdown of what's blocked, and set READ_ONLY=false once you're ready to allow write and send operations.

These variables are set inside your MCP client's configuration (as an env block) — see Configure your MCP client. Self-hosted HTTP mode has its own set of variables (transport, auth, TLS) — see Install the server.

Read-Only Mode

{
  "env": {
    "SENDGRID_API_KEY": "SG.your_api_key_here",
    "READ_ONLY": "false"
  }
}

Available Tools

The server exposes 154 tools grouped into 22 categories. Every tool is registered regardless of READ_ONLY mode — see Read-Only Mode for which ones are blocked by default.

📚 For natural-language prompts you can say directly to Claude, see EXAMPLE_PROMPTS.md. The examples below show the underlying JSON tool calls.

Tools Summary

API Keys, Alerts, Teammates, and Dedicated IPs are deliberately read-only in this server, and SSO/certificate management isn't exposed at all — see Intentionally Unsupported Operations for why.

Marketing Automations

• list_automations - List all marketing automations with metadata
• get_automation - Get detailed information about a specific automation
• update_automation_settings - Update automation-level settings (name, status)
• update_automation_step - Update individual step settings (status, wait time)
• delete_automation - Permanently delete an automation
• open_automation_creator - Open automation creator in browser
• open_automation_editor - Open specific automation editor

{
  "tool": "get_automation",
  "arguments": {
    "automation_id": "automation_id_here"
  }
}

{
  "tool": "update_automation_settings",
  "arguments": {
    "automation_id": "automation_id_here",
    "status": "paused"
  }
}

{
  "tool": "update_automation_step",
  "arguments": {
    "automation_id": "automation_id_here",
    "step_id": "step_id_here",
    "step_status": "active",
    "wait_time": 1440
  }
}

{
  "tool": "delete_automation",
  "arguments": {
    "automation_id": "automation_id_here"
  }
}

Single Send Campaigns

• list_single_sends - List all single send campaigns with metadata
• get_single_send - Retrieve detailed content and settings for a single send campaign
• open_single_send_creator - Open campaign creator in browser for visual design
• open_single_send_stats - View detailed campaign performance statistics

{
  "tool": "get_single_send",
  "arguments": {
    "singlesend_id": "singlesend_id_here"
  }
}

Contact CRUD Operations

• list_contacts - List all contacts with pagination and filtering
• get_contact - Get detailed information about a specific contact
• create_contact - Create new contacts with custom fields
• update_contact - Update existing contact information and custom data
• delete_contact - Delete contacts permanently with cleanup
• search_contacts - Search for contacts using advanced query conditions
• search_contacts_by_emails - Search for specific contacts by email addresses

{
  "tool": "create_contact",
  "arguments": {
    "contacts": [
      {
        "email": "newuser@example.com",
        "first_name": "Jane",
        "last_name": "Smith"
      }
    ]
  }
}

{
  "tool": "search_contacts_by_emails",
  "arguments": {
    "emails": ["john@example.com", "jane@example.com"]
  }
}

{
  "tool": "search_contacts",
  "arguments": {
    "query": "email LIKE '@example.com'",
    "page_size": 10
  }
}

{
  "tool": "update_contact",
  "arguments": {
    "contacts": [
      {
        "id": "contact_id_here",
        "first_name": "John",
        "last_name": "Updated"
      }
    ]
  }
}

{
  "tool": "delete_contact",
  "arguments": {
    "contact_ids": ["contact_id_1", "contact_id_2"]
  }
}

Email List Management

• list_email_lists - List all email lists
• create_email_list - Create a new email list
• update_email_list - Update email list properties
• delete_email_list - Delete an email list
• create_contact_with_lists - Create contacts and assign to lists
• remove_contact_from_lists - Remove contacts from a specific list

{
  "tool": "list_email_lists",
  "arguments": {
    "page_size": 100
  }
}

{
  "tool": "update_email_list",
  "arguments": {
    "list_id": "list_id_here",
    "name": "Updated List Name"
  }
}

{
  "tool": "remove_contact_from_lists",
  "arguments": {
    "list_id": "list_id_here",
    "contact_ids": ["contact_id_1", "contact_id_2"]
  }
}

{
  "tool": "delete_email_list",
  "arguments": {
    "list_id": "list_id_here"
  }
}

Segments & Custom Fields

• list_segments - List dynamic segments with parent relationships and criteria
• open_segment_creator - Open segment creator in browser for visual query building
• update_segment - Update existing segment name or query criteria with real-time refresh
• delete_segment - Delete an existing segment (contacts remain unaffected)
• list_custom_fields - List custom field definitions with data types
• create_custom_field - Create new custom fields (Text, Number, Date types)
• update_custom_field - Update existing custom field definitions
• delete_custom_field - Delete custom field definitions with data cleanup

{
  "tool": "update_segment",
  "arguments": {
    "segment_id": "segment_id_here",
    "name": "Updated Segment Name"
  }
}

{
  "tool": "update_segment",
  "arguments": {
    "segment_id": "segment_id_here",
    "query_dsl": "{\"and\": [{\"field\": \"email\", \"value\": \"@example.com\", \"operator\": \"like\"}]}"
  }
}

{
  "tool": "delete_segment",
  "arguments": {
    "segment_id": "segment_id_here"
  }
}

{
  "tool": "create_custom_field",
  "arguments": {
    "name": "customer_tier",
    "field_type": "Text"
  }
}

{
  "tool": "update_custom_field",
  "arguments": {
    "field_id": "field_id_here",
    "name": "customer_level"
  }
}

{
  "tool": "delete_custom_field",
  "arguments": {
    "field_id": "field_id_here"
  }
}

Senders & Import

• list_senders - List verified sender identities
• create_sender - Create new sender identity
• delete_sender - Delete a verified sender identity
• open_csv_uploader - Open CSV upload interface

{
  "tool": "create_sender",
  "arguments": {
    "nickname": "Marketing Team",
    "from": { "email": "marketing@yourdomain.com", "name": "Your Company" },
    "reply_to": { "email": "replies@yourdomain.com", "name": "Your Company" },
    "address": "123 Main St",
    "city": "Denver",
    "state": "CO",
    "zip": "80202",
    "country": "United States"
  }
}

{
  "tool": "delete_sender",
  "arguments": {
    "sender_id": "sender_id_here"
  }
}

Dynamic Templates

• list_templates - List all dynamic and legacy templates
• get_template - Get details of a specific template including all versions
• create_template - Create a new dynamic template
• update_template - Update template name and settings
• delete_template - Delete a template and all its versions
• create_template_version - Create a new version with HTML content and settings
• get_template_version - Get details of a specific template version
• update_template_version - Update version content, subject, and settings
• delete_template_version - Delete a specific template version
• create_html_template - Create complete template with HTML content in one step (perfect for AI agents)
• open_template_editor - Open SendGrid's visual template editor in browser

Templates support Handlebars syntax for dynamic content ({{variable}}, {{#each}}, {{#if}}), responsive HTML with inline CSS, up to 300 versions per template, test-data previews, and automatic plain-text generation.

{
  "tool": "create_html_template",
  "arguments": {
    "template_name": "Welcome Email",
    "version_name": "Version 1.0",
    "subject": "Welcome to {{companyName}}, {{firstName}}!",
    "html_content": "<!DOCTYPE html><html><head><meta charset=\"utf-8\"><title>Welcome</title></head><body style=\"font-family: Arial, sans-serif; max-width: 600px; margin: 0 auto;\"><h1 style=\"color: #333;\">Welcome {{firstName}}!</h1><p>Thank you for joining {{companyName}}. We're excited to have you on board.</p></body></html>",
    "test_data": "{\"firstName\":\"John\",\"companyName\":\"Acme Corp\"}"
  }
}

{
  "tool": "create_template_version",
  "arguments": {
    "template_id": "your_template_id",
    "name": "Newsletter v1.0",
    "subject": "{{month}} Newsletter - {{companyName}}",
    "html_content": "<!DOCTYPE html><html><head><meta charset=\"utf-8\"></head><body><h1>{{month}} Newsletter</h1>{{#each articles}}<div><h2>{{title}}</h2><p>{{summary}}</p><a href=\"{{link}}\">Read More</a></div>{{/each}}</body></html>",
    "test_data": "{\"month\":\"January\",\"companyName\":\"Acme\",\"articles\":[{\"title\":\"Article 1\",\"summary\":\"Summary here\",\"link\":\"https://example.com\"}]}"
  }
}

Mail Sending

• send_mail - Send transactional emails (supports templates with dynamic template data)

{
  "tool": "send_mail",
  "arguments": {
    "personalizations": [
      {
        "to": [{"email": "recipient@example.com", "name": "John Doe"}],
        "subject": "Hello from SendGrid MCP!"
      }
    ],
    "from": {"email": "sender@yourdomain.com", "name": "Your Name"},
    "content": [
      {
        "type": "text/plain",
        "value": "Hello! This email was sent via SendGrid MCP server."
      }
    ]
  }
}

{
  "tool": "send_mail",
  "arguments": {
    "personalizations": [
      {
        "to": [{"email": "user@example.com", "name": "John Doe"}],
        "dynamic_template_data": {
          "firstName": "John",
          "companyName": "Acme Corp",
          "orderNumber": "12345",
          "items": [
            {"name": "Product A", "price": "29.99"},
            {"name": "Product B", "price": "19.99"}
          ]
        }
      }
    ],
    "from": {"email": "noreply@yourcompany.com", "name": "Your Company"},
    "template_id": "d-1234567890abcdef1234567890abcdef"
  }
}

Email Statistics & Analytics

• get_global_stats - Retrieve overall email performance metrics
• get_stats_overview - Get comprehensive statistics across multiple dimensions
• get_stats_by_browser - Statistics broken down by browser type (Chrome, Firefox, Safari, etc.)
• get_stats_by_client_type - Statistics by email client type (desktop, mobile, webmail)
• get_stats_by_device_type - Statistics by device type (desktop, mobile, tablet)
• get_stats_by_mailbox_provider - Statistics by mailbox provider (Gmail, Outlook, Yahoo, etc.)
• get_stats_by_country - Statistics by country and state/province
• get_category_stats - Statistics for specific email categories (13-month history)
• get_subuser_stats - Statistics for specific subuser accounts

Tracks delivery, open, and click-through rates; bounce rates (hard/soft), spam reports, and unsubscribes; geographic performance and device preferences; email client compatibility and browser rendering; and provider-specific deliverability.

{
  "tool": "get_global_stats",
  "arguments": {
    "start_date": "2024-01-01",
    "end_date": "2024-01-31",
    "aggregated_by": "day"
  }
}

{
  "tool": "get_stats_by_mailbox_provider",
  "arguments": {
    "start_date": "2024-01-01",
    "end_date": "2024-01-07",
    "aggregated_by": "day",
    "mailbox_providers": "gmail.com,outlook.com,yahoo.com"
  }
}

{
  "tool": "get_stats_by_country",
  "arguments": {
    "start_date": "2024-01-01",
    "end_date": "2024-01-31",
    "country": "US",
    "aggregated_by": "week"
  }
}

{
  "tool": "get_stats_overview",
  "arguments": {
    "start_date": "2024-01-01",
    "end_date": "2024-01-07",
    "aggregated_by": "day",
    "include_subusers": false
  }
}

Utilities

• get_scopes - Get available API permission scopes (no arguments)

Suppressions

• list_suppression_groups - List all unsubscribe (suppression) groups on the account
• create_suppression_group - Create a new unsubscribe (suppression) group
• get_suppression_group - Get details about a specific unsubscribe (suppression) group
• update_suppression_group - Update the name, description, or default status of an existing suppression group
• delete_suppression_group - Permanently delete an unsubscribe (suppression) group. This action cannot be undone.
• list_group_suppressions - List all email addresses that are unsubscribed from a specific suppression group
• add_group_suppressions - Add one or more email addresses to a specific suppression group's unsubscribe list
• remove_group_suppression - Remove a single email address from a specific suppression group's unsubscribe list. This only re-permits mail assigned to this group's category -- it is not a global resubscribe.
• list_global_suppressions - List email addresses on the account-wide global unsubscribe list, optionally filtered by a time range
• add_global_suppression - Add recipients to the account-wide global unsubscribe list -- they will stop receiving all non-transactional mail from this account
• get_global_suppression - Check whether a specific email address is on the account-wide global unsubscribe list
• delete_global_suppression - Remove an email address from the account-wide global suppression list, effectively resubscribing them to non-transactional mail
• list_bounces - List all email addresses that have bounced, optionally filtered by a time range
• get_bounce - Get bounce event(s) recorded for a specific email address
• delete_bounce - Remove a bounce record for an email address so this address can receive mail again
• list_blocks - List all email addresses currently on the blocks list, optionally filtered by a time range
• delete_block - Remove an email address from the blocks list so this address can receive mail again
• list_spam_reports - List all email addresses that have reported mail as spam, optionally filtered by a time range
• delete_spam_report - Remove an email address from the spam reports list so this address can receive mail again
• list_invalid_emails - List all email addresses that have been marked invalid, optionally filtered by a time range
• delete_invalid_email - Remove an email address from the invalid emails list so this address can receive mail again

Domain Authentication & Link Branding

• list_authenticated_domains - List all authenticated (whitelabel) domains configured for sending mail
• get_authenticated_domain - Get detailed information about a specific authenticated domain, including its DNS records
• create_authenticated_domain - Set up domain authentication (SPF/DKIM) for sending mail from a custom domain
• update_authenticated_domain - Update the custom SPF or default settings of an existing authenticated domain
• delete_authenticated_domain - Permanently delete an authenticated domain. This action cannot be undone.
• validate_authenticated_domain - Check whether the domain's DNS records are correctly configured for authentication
• get_default_authenticated_domain - Get the authenticated domain currently set as the default for sending mail
• list_branded_links - List all branded links (link whitelabels) configured for click tracking
• get_branded_link - Get detailed information about a specific branded link, including its DNS records
• create_branded_link - Set up branded link tracking (click tracking through the sender's own domain instead of sendgrid.net)
• update_branded_link - Update the default setting of an existing branded link
• delete_branded_link - Permanently delete a branded link. This action cannot be undone.
• validate_branded_link - Check whether the branded link's DNS records are correctly configured

Event & Inbound Parse Webhooks

• list_event_webhooks - List all configured Event Webhook settings on the account
• get_event_webhook - Get the configuration of a specific Event Webhook by ID
• create_event_webhook - Creates a new Event Webhook that POSTs email events (delivered, bounced, opened, clicked, etc.) to the given URL
• update_event_webhook - Update the configuration of an existing Event Webhook
• delete_event_webhook - Permanently delete an Event Webhook configuration. This action cannot be undone.
• test_event_webhook - Sends a test event payload to the given webhook URL to verify it's reachable and correctly configured
• list_inbound_parse_settings - List all configured Inbound Parse webhook settings on the account
• get_inbound_parse_setting - Get the Inbound Parse webhook configuration for a specific hostname
• create_inbound_parse_setting - Configures inbound email parsing so mail sent to the given hostname is POSTed to the given URL
• update_inbound_parse_setting - Update the Inbound Parse webhook configuration for a specific hostname
• delete_inbound_parse_setting - Permanently delete an Inbound Parse webhook configuration for a hostname. This action cannot be undone.
• get_inbound_parse_stats - Get statistics on the number of inbound emails parsed over a given date range

Tracking Settings

• get_tracking_settings - Retrieve all tracking settings (click, open, subscription, Google Analytics) in one call
• get_click_tracking_settings - Retrieve the current click tracking setting
• update_click_tracking_settings - Enable or disable click tracking on links within emails
• get_google_analytics_settings - Retrieve the current Google Analytics tracking settings
• update_google_analytics_settings - Update Google Analytics tracking settings, including UTM campaign, content, medium, source, and term values
• get_open_tracking_settings - Retrieve the current open tracking setting
• update_open_tracking_settings - Enable or disable open tracking, which inserts an invisible pixel to record when an email is opened
• get_subscription_tracking_settings - Retrieve the current subscription tracking settings
• update_subscription_tracking_settings - Update subscription tracking settings, including the unsubscribe link content, landing page, URL, and replacement tag

Mail Settings

• get_all_mail_settings - Retrieve all mail settings (address whitelist, bounce purge, footer, forward bounce, forward spam, etc.) in one call
• get_address_whitelist_settings - Retrieve the current address whitelist mail setting, which controls which email addresses or domains bypass all suppression lists
• update_address_whitelist_settings - Update the address whitelist setting that controls which email addresses or domains bypass all suppression lists
• get_bounce_purge_settings - Retrieve the current bounce purge mail setting, which automatically purges old bounce records after a configured number of days
• update_bounce_purge_settings - Update the bounce purge setting that automatically purges old bounce records after a configured number of days
• get_footer_settings - Retrieve the current footer mail setting, which appends a footer to every outgoing email
• update_footer_settings - Update the footer setting that appends a footer to every outgoing email
• get_forward_bounce_settings - Retrieve the current forward bounce mail setting, which forwards bounce notifications to a given email address
• update_forward_bounce_settings - Update the forward bounce setting that forwards bounce notifications to a given email address
• get_forward_spam_settings - Retrieve the current forward spam mail setting, which forwards spam report notifications to a given email address
• update_forward_spam_settings - Update the forward spam setting that forwards spam report notifications to a given email address

API Keys (read-only)

• list_api_keys - List all API keys on the account (names and IDs only, not the secret key values)
• get_api_key - Get details for a specific API key, including its scopes

Alerts (read-only)

• list_alerts - List all usage/stats alerts configured on the account
• get_alert - Get details for a specific alert

Teammates (read-only)

• list_teammates - List all teammates (users) on the account
• get_teammate - Get details for a specific teammate, including their permission scopes
• list_pending_teammates - List pending teammate invitations that haven't been accepted yet

Dedicated IPs (read-only)

• list_ip_addresses - List all IP addresses assigned to the account
• get_ip_address - Get details for a specific IP address, including its warmup status and assigned subusers
• list_assigned_ips - List all IP addresses that are currently assigned to a subuser
• list_ip_pools - List all IP pools on the account
• get_ip_pool - Get details for a specific IP pool, including the IP addresses it contains
• get_remaining_ips - Get the count and cost of additional dedicated IP addresses available for purchase
• list_ip_warmups - List all IP addresses currently in the warmup process
• get_ip_warmup_status - Get the warmup status for a specific IP address
• list_allowed_ips - List IP addresses allowed to access the account via the API/UI (the access allowlist)
• get_allowed_ip - Get details for a specific entry in the access allowlist
• list_access_activity - List recent account access attempts (successful and blocked logins/API calls)

Design Library

• list_designs - List all custom email designs in the Design Library
• create_design - Create a new custom email design in the Design Library from raw HTML
• get_design - Get details for a specific design in the Design Library
• update_design - Update the content or metadata of an existing design in the Design Library
• delete_design - Permanently delete a custom design from the Design Library. This action cannot be undone.
• duplicate_design - Create a copy of an existing design in the Design Library
• list_prebuilt_designs - List SendGrid's built-in pre-made design templates
• get_prebuilt_design - Get details for one of SendGrid's built-in pre-made designs
• duplicate_prebuilt_design - Create an editable copy of one of SendGrid's built-in pre-made designs

Email Address Validation

• validate_email - Check whether an email address is valid and likely to be deliverable, using SendGrid's Email Address Validation API (consumes a billed validation credit per call)

Message Search

• search_email_activity - Search sent message activity using SendGrid's SGQL filter syntax (e.g. by recipient, status, or subject) -- useful for troubleshooting why a specific email wasn't delivered
• get_message_details - Get full delivery event history and details for a single sent message by its message ID

Available Resources

• sendgrid://automations - Marketing automations data
• sendgrid://singlesends - Single send campaigns data
• sendgrid://lists - Email lists data
• sendgrid://contacts - Contact segments data
• sendgrid://suppressions - Suppression lists (bounces, spam, etc.)
• sendgrid://account - Account profile information
• sendgrid://stats - Global email statistics and performance metrics (30-day overview)
• sendgrid://stats/browsers - Email statistics by browser type (7-day data)
• sendgrid://stats/devices - Email statistics by device type (7-day data)
• sendgrid://stats/geography - Email statistics by geographic location (7-day data)
• sendgrid://stats/providers - Email statistics by mailbox provider (7-day data)

Available Prompts

• sendgrid_automation_help - Get help with marketing automations
• sendgrid_campaign_help - Get help with single send campaigns
• sendgrid_contacts_help - Get help with comprehensive contact management
• sendgrid_list_management_help - Get help with email list CRUD operations
• sendgrid_update_list_help - Get help with updating/renaming email lists
• sendgrid_contact_crud_help - Get help with contact create/read/update/delete operations
• sendgrid_custom_fields_help - Get help with custom field definitions management
• sendgrid_segment_management_help - Get help with managing dynamic contact segments
• sendgrid_sender_management_help - Get help with sender identity management
• sendgrid_templates_help - Get help with creating and managing dynamic email templates
• sendgrid_suppressions_help - Get help with suppression lists
• sendgrid_settings_help - Get help with account settings
• sendgrid_mail_send_help - Get help with sending emails
• sendgrid_stats_help - Get help with analyzing email performance and statistics

Development & Contributing

This section is for developers who want to modify the server or contribute to development.

# Clone the repository
git clone https://github.com/deyikong/sendgrid-mcp.git
cd sendgrid-mcp

# Install dependencies
npm install

# Build the project
npm run build

# Link for local development
npm link

# Test the local build
sendgrid-mcp

{
  "mcpServers": {
    "sendgrid": {
      "command": "node",
      "args": ["/absolute/path/to/sendgrid-mcp/build/index.js"],
      "env": {
        "SENDGRID_API_KEY": "SG.your_api_key_here",
        "READ_ONLY": "true"
      }
    }
  }
}

src/
├── index.ts                    # Main entry point
├── shared/                     # Shared utilities
│   ├── auth.ts                 # Authentication
│   ├── api.ts                  # SendGrid API client
│   ├── env.ts                  # Environment validation
│   └── types.ts                # Shared types
├── tools/                      # Tool definitions
│   ├── automations.ts          # Automation tools (7 tools)
│   ├── campaigns.ts            # Campaign tools (4 tools)
│   ├── contacts.ts             # Contact, list, segment & sender tools (25 tools)
│   ├── mail.ts                 # Mail sending tools (1 tool)
│   ├── misc.ts                 # Miscellaneous tools (1 tool)
│   ├── stats.ts                # Statistics tools (9 tools)
│   └── templates.ts            # Template tools (11 tools)
├── resources/                  # Resource definitions
│   └── sendgrid.ts             # MCP resources
└── prompts/                    # Prompt definitions
    └── help.ts                 # Help prompts

# Build the project
npm run build

# Test with environment variables
SENDGRID_API_KEY="SG.your_key" READ_ONLY="true" node build/index.js

Troubleshooting

Common Issues

Error: sendgrid-mcp: command not found

Error: SENDGRID_API_KEY must start with 'SG.'

Error: 403 Forbidden

❌ Operation blocked: Server is running in READ_ONLY mode

Error: Request timeout

Getting Help

• Built-in Help: Use help prompts in your MCP client (e.g., ask Claude: "help with sendgrid automations")
• SendGrid API: Official API Documentation
• MCP Protocol: Model Context Protocol Docs
• Issues: Report bugs at the GitHub repository

Debug Mode

Enable detailed logging by setting the LOG_LEVEL:

{
  "env": {
    "SENDGRID_API_KEY": "SG.your_key",
    "LOG_LEVEL": "debug"
  }
}

This will provide detailed information about API requests and responses.

Security

Found a vulnerability? Please report it privately rather than opening a public issue — see SECURITY.md.

Intentionally Unsupported Operations

A handful of SendGrid API capabilities are deliberately left out of this server, on top of whatever READ_ONLY mode blocks at runtime. These aren't gaps to be filled later — they're excluded because letting an LLM call them autonomously carries account-wide blast radius that a READ_ONLY toggle alone doesn't mitigate (an operator running with READ_ONLY=false for legitimate marketing-automation writes shouldn't also be one prompt-injected tool call away from losing account access or api budget):

• API key creation/rotation/deletion — only list_api_keys/get_api_key are exposed. Minting or deleting API keys is a classic prompt-injection target: a malicious webpage or email an agent processes could try to trick it into creating a new key and exfiltrating it.
• Teammate invites, permission changes, and removal — only list_teammates/get_teammate/list_pending_teammates are exposed. Adding, removing, or re-permissioning teammates is account access control with the same injection risk as API keys.
• Dedicated IP purchases, warmup control, and access-allowlist changes — only read/list tools are exposed. Dedicated IPs cost real money and affect deliverability infrastructure account-wide; access-allowlist mistakes can lock out legitimate API access entirely.
• SSO and certificate management — not exposed at all, in any form. Misconfiguring SSO can lock an entire organization out of login, and there's essentially no legitimate reason for a chat assistant to be managing it.

If you need any of these for a specific automation, use the SendGrid dashboard or API directly rather than requesting this server add them — that's a deliberate design boundary, not an oversight.

License

This project is licensed under the ISC License.

Contributing

1. Fork the repository
2. Create a feature branch
3. Make your changes
4. Test thoroughly
5. Submit a pull request

Support

For issues related to:

• SendGrid API: Check SendGrid Documentation
• MCP Protocol: Check Model Context Protocol
• This Server: Open an issue in this repository

Feedback

I work at SendGrid and maintain this project. Feedback, bug reports, and feature requests are always welcome — please open an issue or start a discussion on the repository.