# How to connect Mailersend to Grok Bot ```json { "title": "How to connect Mailersend to Grok Bot", "toolkit": "Mailersend", "toolkit_slug": "mailersend", "framework": "Grok Bot", "framework_slug": "grok-bot", "url": "https://composio.dev/toolkits/mailersend/framework/grok-bot", "markdown_url": "https://composio.dev/toolkits/mailersend/framework/grok-bot.md", "updated_at": "2026-10-31T06:00:38.762Z" } ``` ## Introduction Grok is xAI's assistant, and its bot builder lets you create a personal agent that holds context, runs skills, and connects to the apps you already use through plugins. This guide explains how to connect Mailersend to a Grok bot using Composio Connect, which handles OAuth, token refresh, and reliability so you do not have to. You add Composio as a plugin, authenticate once, then ask your bot to work with Mailersend in plain language. ## Also integrate Mailersend with - [Claude Code](https://composio.dev/toolkits/mailersend/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/mailersend/framework/claude-cowork) - [OpenAI Agents SDK](https://composio.dev/toolkits/mailersend/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/mailersend/framework/claude-agents-sdk) - [Codex](https://composio.dev/toolkits/mailersend/framework/codex) - [OpenClaw](https://composio.dev/toolkits/mailersend/framework/openclaw) - [Hermes](https://composio.dev/toolkits/mailersend/framework/hermes-agent) - [Atomic Agent](https://composio.dev/toolkits/mailersend/framework/atomic-agent) - [Google ADK](https://composio.dev/toolkits/mailersend/framework/google-adk) - [LangChain](https://composio.dev/toolkits/mailersend/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/mailersend/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/mailersend/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/mailersend/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/mailersend/framework/crew-ai) - [Pydantic AI](https://composio.dev/toolkits/mailersend/framework/pydantic-ai) - [AutoGen](https://composio.dev/toolkits/mailersend/framework/autogen) ## TL;DR Composio exposes 1,500+ apps to your Grok bot through a single connection, so you get: - Connect to 1,500+ apps with on-demand tool loading, so you do not fill your context window with unnecessary tool definitions. - Use programmatic tool calling through a remote workbench, letting the model write its own code to handle complex tool chaining. This reduces back-and-forth for frequent tool calls. - Handle large tool responses outside the model context to keep conversations lean. ## Connect Mailersend to Grok Bot ### Connecting Mailersend to Grok Bot Once Grok Bot is set up, you connect Mailersend entirely from its interface, and the whole flow takes under a minute. ### Set up Grok Bot Get access. Grok Bot is included with Cursor Ultra, Cursor Premium Teams, and SuperGrok Heavy. Get the desktop app for macOS or Windows from [x.ai/bot](https://x.ai/bot) and sign in. An iPhone companion app is also available, and your bots sync across devices. Create a bot. Pick a suggested role or define your own, then give it a short name, one primary job, and a short description of how it should work. Focused bots work best, because a clear role gives the bot more useful context over time. ### Connect Mailersend ### 1. Add the Composio plugin Click the button. The Composio listing on x.ai opens and launches Grok Bot for you. If the app does not open on its own, click Add to Grok Bot. [Add to Grok Bot](https://x.ai/bot/plugin/32661537) Grok Bot opens the Composio plugin, showing its connector and skills. Click Add. ### 2. Authenticate Go to the Installed section and click the Composio entry. You'll see its connector and skills listed. Click Authenticate. You'll be taken to the Composio consent screen. Review the access it requests and click Authorize. Composio handles the OAuth handshake for you, so you never touch API keys or tokens. ### 3. Connect your Mailersend account Back in the chat, ask your bot to connect to Mailersend or give it any Mailersend task. For example, ask it to: - "Add a new sending domain for your app" - "List all SMTP users for our domain" - "Check current API quota usage" It will prompt you to authenticate and authorize access. That's it. Composio's tools are now available in your Grok bot, and your Mailersend account is ready to use. ## What is Grok Bot? Grok is xAI's assistant, available as a chat interface and a bot builder for creating personal agents that run skills and connect to external apps. With Composio Connect, your Grok bot can securely access apps like Mailersend through MCP without you sharing account credentials directly with the agent. ## What is the Mailersend MCP server, and what's possible with it? The Mailersend MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Mailersend account. It provides structured and secure access to your transactional email infrastructure, so your agent can perform actions like sending emails, managing domains, configuring webhooks, and monitoring API usage on your behalf. - Seamless domain management: Register new sending domains, verify their status, and retrieve detailed configuration information to ensure reliable email delivery. - Automated email and SMTP user setup: Quickly create SMTP users and API tokens as needed for secure and scalable application integration. - Webhook configuration and event tracking: Set up and delete webhooks to monitor real-time email events such as sent, delivered, or opened messages, enabling proactive workflows and notifications. - Recipient and quota insights: List recipients for specific domains and monitor your API usage to stay within account limits and optimize deliverability. - Centralized resource discovery: Retrieve general API resources and overview endpoints to streamline Mailersend integration and administration directly from your agent. ## Supported Tools | Tool slug | Name | Description | |---|---|---| | `MAILERSEND_CREATE_DOMAIN` | Create Sending Domain | Tool to add a new sending domain to MailerSend. Use when you need to register and configure a domain before sending emails. | | `MAILERSEND_CREATE_SMTP_USER` | Create SMTP User | Tool to create a new SMTP user. Use after domain setup to obtain SMTP credentials. | | `MAILERSEND_CREATE_TOKEN` | Create API Token | Creates a new API token with specified scopes (permissions) for a domain. The token allows programmatic access to MailerSend API endpoints based on granted scopes. WARNING: The token value is only displayed once upon creation and cannot be retrieved later. | | `MAILERSEND_CREATE_WEBHOOK` | Create Webhook | Tool to create a new webhook for a MailerSend domain. Use after you have a domain ID and need to receive event notifications like sent, delivered, opened, etc. | | `MAILERSEND_DELETE_WEBHOOK` | Delete Webhook | Tool to delete an existing webhook. Use when the webhook is no longer needed. Returns empty response on successful deletion (HTTP 204). | | `MAILERSEND_GET_API_QUOTA` | Get API Quota | Tool to retrieve current API usage quota. Use when monitoring API rate limits to avoid exceeding allowed calls. | | `MAILERSEND_GET_DOMAIN` | Get Domain | Tool to retrieve detailed information about a specific sending domain in MailerSend. Returns domain verification status (DKIM, SPF, MX, tracking), settings (click/open tracking, paused status), and metadata (creation/update timestamps). Use this when you need to check if a domain is properly verified and configured for sending emails, or to review domain-specific tracking settings. Note: For detailed DNS record values, use the Get Domain DNS Records action. | | `MAILERSEND_GET_DOMAIN_RECIPIENTS` | List Domain Recipients | Tool to list recipients for a domain. Use after obtaining the domain ID to view recipients with optional pagination. | | `MAILERSEND_GET_DOMAINS` | Get sending domains | Retrieve a paginated list of all sending domains configured in your MailerSend account. Use this to: - View all domains available for sending emails - Check domain verification and DNS status - Filter by verification status to find verified or unverified domains - Review domain settings like tracking and sending preferences Returns domain details including verification status, DNS configuration, and tracking settings. | | `MAILERSEND_GET_GENERAL_RESOURCES` | Get general API resources | Tool to retrieve general API resources and information. Use when you need an overview of all MailerSend endpoints before constructing specific calls. | | `MAILERSEND_GET_IDENTITIES` | List Sender Identities | Retrieves a paginated list of sender identities configured in your MailerSend account. Sender identities are the email addresses or domains authorized to send emails through MailerSend. Each identity includes verification status, reply-to configuration, domain association, and optional personal notes. Use this tool to discover available sender identities before sending emails or to verify which identities are ready for use. Returns: Paginated list of identity objects with metadata including verification status, domain details, and navigation links for pagination. | | `MAILERSEND_GET_MESSAGES` | Get sent messages | Tool to retrieve a paginated list of sent messages. Use after sending emails to view message logs. | | `MAILERSEND_GET_RECIPIENTS` | Get email recipients | Tool to retrieve a list of email recipients. Use when you need to list and filter recipients by list ID or search term. | | `MAILERSEND_GET_SMS_ACTIVITY` | Get SMS Activity | Tool to retrieve SMS activity logs. Use when you need to fetch delivery status and logs of sent SMS messages. | | `MAILERSEND_GET_SMS_INBOUNDS` | Get SMS Inbounds | Retrieve inbound SMS route configurations. Inbound routes define rules for forwarding incoming SMS messages to webhook URLs based on message content filters. Use this action when you need to: - List all configured SMS inbound routes - Filter routes by SMS number or enabled status - Review webhook forwarding configurations and filter rules | | `MAILERSEND_GET_SMS_MESSAGES` | List SMS Messages | Retrieves a paginated list of SMS messages sent through the MailerSend API. Returns message details including sender, recipients, content, status, and timestamps. Use this to review sent SMS messages and track their delivery status. Note: For detailed activity tracking with filters (date ranges, status, phone numbers), use the SMS Activity endpoint instead. | | `MAILERSEND_GET_SMS_NUMBERS` | Get SMS Numbers | Tool to retrieve a paginated list of SMS phone numbers. Use after purchasing numbers to fetch available SMS numbers. | | `MAILERSEND_GET_SMS_RECIPIENTS` | Get SMS recipients | Tool to retrieve a list of SMS recipients. Use when you need to list and paginate SMS recipients, optionally filtering by SMS number ID and/or recipient status. | | `MAILERSEND_GET_SMTP_USERS` | Get SMTP users | Tool to retrieve a list of SMTP users. Use when you need to list and paginate SMTP users. | | `MAILERSEND_GET_TEMPLATES` | Get email templates | Retrieves a paginated list of email templates from your MailerSend account. Use this tool when you need to: - List all available email templates - Filter templates by domain ID - Browse templates with pagination - Check template details like name, type, and creation date Returns template metadata including IDs, names, types, and timestamps. For full template content, use a separate get single template endpoint. | | `MAILERSEND_GET_TOKENS` | Get API Tokens | Retrieves a paginated list of API tokens associated with your MailerSend account. Returns token details including ID, name, status, creation date, and assigned scopes/permissions. Requires 'tokens_full' scope. | | `MAILERSEND_GET_USERS` | Get users | Tool to retrieve a list of users associated with your account. Use after authenticating with a valid API token. | | `MAILERSEND_GET_WEBHOOKS` | List webhooks | Tool to retrieve a list of webhooks. Use when you need to list and paginate all configured webhooks, optionally filtering by domain. | ## Supported Triggers None listed. ## Creating MCP Server - Stand-alone vs Composio SDK Once connected, your Grok bot can access the Mailersend MCP server through Composio to run the actions you authorize, using plain language in the chat. ## Complete Code None listed. ## Conclusion ### Way Forward Now that Mailersend is connected, extend your setup by connecting the other apps you already use every day, so your Grok bot can run true cross-app workflows end to end. - Connect Calendar to turn threads into scheduled meetings automatically. - Connect Slack or Teams to post summaries, approvals, and alerts where your team works. - Connect Notion, Linear, Jira, or Asana to convert requests into tickets, tasks, and docs. - Connect Drive, Dropbox, or OneDrive to fetch, file, and share attachments without manual steps. Start with one workflow you do repeatedly, then keep adding apps as you find new handoffs. With everything behind a single connection, your bot can coordinate multiple tools safely and reliably in one conversation. ## How to build Mailersend MCP Agent with another framework - [Claude Code](https://composio.dev/toolkits/mailersend/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/mailersend/framework/claude-cowork) - [OpenAI Agents SDK](https://composio.dev/toolkits/mailersend/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/mailersend/framework/claude-agents-sdk) - [Codex](https://composio.dev/toolkits/mailersend/framework/codex) - [OpenClaw](https://composio.dev/toolkits/mailersend/framework/openclaw) - [Hermes](https://composio.dev/toolkits/mailersend/framework/hermes-agent) - [Atomic Agent](https://composio.dev/toolkits/mailersend/framework/atomic-agent) - [Google ADK](https://composio.dev/toolkits/mailersend/framework/google-adk) - [LangChain](https://composio.dev/toolkits/mailersend/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/mailersend/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/mailersend/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/mailersend/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/mailersend/framework/crew-ai) - [Pydantic AI](https://composio.dev/toolkits/mailersend/framework/pydantic-ai) - [AutoGen](https://composio.dev/toolkits/mailersend/framework/autogen) ## Related Toolkits - [Gmail](https://composio.dev/toolkits/gmail) - Gmail is Google's email service with powerful spam protection, search, and G Suite integration. It keeps your inbox organized and makes communication fast and reliable. - [Outlook](https://composio.dev/toolkits/outlook) - Outlook is Microsoft's email and calendaring platform for unified communications and scheduling. It helps users stay organized with powerful email, contacts, and calendar management. - [Slack](https://composio.dev/toolkits/slack) - Slack is a channel-based messaging platform for teams and organizations. It helps people collaborate in real time, share files, and connect all their tools in one place. - [Gong](https://composio.dev/toolkits/gong) - Gong is a platform for video meetings, call recording, and team collaboration. It helps teams capture conversations, analyze calls, and turn insights into action. - [Microsoft teams](https://composio.dev/toolkits/microsoft_teams) - Microsoft Teams is a collaboration platform that combines chat, meetings, and file sharing within Microsoft 365. It keeps distributed teams connected and productive through seamless virtual communication. - [Slackbot](https://composio.dev/toolkits/slackbot) - Slackbot is a conversational automation tool for Slack that handles reminders, notifications, and automated responses. It boosts team productivity by streamlining onboarding, answering FAQs, and managing timely alerts—all right inside Slack. - [2chat](https://composio.dev/toolkits/_2chat) - 2chat is an API platform for WhatsApp and multichannel text messaging. It streamlines chat automation, group management, and real-time messaging for developers. - [Agent mail](https://composio.dev/toolkits/agent_mail) - Agent mail provides AI agents with dedicated email inboxes for sending, receiving, and managing emails. It empowers agents to communicate autonomously with people, services, and other agents—no human intervention needed. - [Aircall](https://composio.dev/toolkits/aircall) - Aircall is a cloud-based phone and call-center platform for business communications. It centralizes calls, contacts, teams, numbers, and tags in one place. - [Android Texter](https://composio.dev/toolkits/android_texter) - Android Texter is an API service that connects Android phones to SMS, MMS, contacts, and device data. Use it to automate mobile messaging without building your own phone-to-API bridge. - [Basecamp](https://composio.dev/toolkits/basecamp) - Basecamp is a project management and team collaboration tool by 37signals. It helps teams organize tasks, share files, and communicate efficiently in one place. - [Blooio](https://composio.dev/toolkits/blooio) - Blooio is a stable v2 API platform for messaging, chats, contacts, groups, phone numbers, and account analytics. It gives teams a clean way to build reliable communication workflows without stitching together fragile custom APIs. - [Callback24](https://composio.dev/toolkits/callback24) - Callback24 is a telephony API for managing phone calls, users, services, and routing groups. It centralizes call control and routing to automate voice workflows and operations. - [CallOnTheGo](https://composio.dev/toolkits/callonthego) - CallOnTheGo is a telephony API for managing phone numbers, caller IDs, suppression lists, audio assets, contact lists, and Voice AI campaigns. It provides programmatic control over calling infrastructure and campaign automation for scalable voice outreach. - [Carbon Voice MCP](https://composio.dev/toolkits/carbon_voice_mcp) - Carbon Voice MCP is a voice-first collaboration platform for messages, conversations, and workflows. Use it to centralize voice communications and streamline team collaboration. - [CardClan](https://composio.dev/toolkits/cardclan) - CardClan is a digital card platform for creating and sending personalized team cards. Use it to celebrate moments, share card links, and manage card workflows without extra coordination. - [Chatwork](https://composio.dev/toolkits/chatwork) - Chatwork is a team communication platform with group chats, file sharing, and task management. It helps businesses boost collaboration and streamline productivity. - [Clickmeeting](https://composio.dev/toolkits/clickmeeting) - ClickMeeting is a cloud-based platform for running online meetings and webinars. It helps businesses and individuals host, manage, and engage virtual audiences with ease. - [Confluence](https://composio.dev/toolkits/confluence) - Confluence is Atlassian's team collaboration and knowledge management platform. It helps your team organize, share, and update documents and project content in one secure workspace. - [Daily](https://composio.dev/toolkits/daily) - Daily is a WebRTC video and audio API platform for building rooms, meetings, recordings, live streams, transcriptions, and telephony. It gives developers reliable real-time media infrastructure without managing complex conferencing stacks. ## Frequently Asked Questions ### What are the differences in Tool Router MCP and Mailersend MCP? With a standalone Mailersend MCP server, the agents and LLMs can only access a fixed set of Mailersend tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Mailersend and many other apps based on the task at hand, all through a single MCP endpoint. ### Can I use Tool Router MCP with Grok Bot? Yes, you can. Grok Bot fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Mailersend tools. ### Can I manage the permissions and scopes for Mailersend while using Tool Router? Yes, absolutely. You can configure which Mailersend scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do. ### How safe is my data with Composio Tool Router? All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Mailersend data and credentials are handled as safely as possible. --- [See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)