# How to integrate Agent mail MCP with Antigravity ```json { "title": "How to integrate Agent mail MCP with Antigravity", "toolkit": "Agent mail", "toolkit_slug": "agent_mail", "framework": "Antigravity", "framework_slug": "antigravity", "url": "https://composio.dev/toolkits/agent_mail/framework/antigravity", "markdown_url": "https://composio.dev/toolkits/agent_mail/framework/antigravity.md", "updated_at": "2026-05-12T10:00:24.734Z" } ``` ## Introduction ### How to integrate Agent mail MCP with Antigravity Antigravity IDE is Google's agentic IDE, built on a VS Code-style editor and powered by models like Gemini 3.5 Flash, Gemini 3.1 Pro, Opus 4.6, and more. It treats the AI agent as a first-class teammate, planning, coding, and validating work through an Agent Manager dashboard with deep browser connectivity. In this guide, I will explain the easiest and most secure way to connect your Agent mail account to Antigravity IDE via Composio Connect, so it can show me unread emails from today, send a status update to your team, find emails with invoice attachments, and more without ever putting your account credentials at risk. ## Also integrate Agent mail with - [ChatGPT](https://composio.dev/toolkits/agent_mail/framework/chatgpt) - [OpenAI Agents SDK](https://composio.dev/toolkits/agent_mail/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/agent_mail/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/agent_mail/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/agent_mail/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/agent_mail/framework/codex) - [Cursor](https://composio.dev/toolkits/agent_mail/framework/cursor) - [VS Code](https://composio.dev/toolkits/agent_mail/framework/vscode) - [OpenCode](https://composio.dev/toolkits/agent_mail/framework/opencode) - [OpenClaw](https://composio.dev/toolkits/agent_mail/framework/openclaw) - [Hermes](https://composio.dev/toolkits/agent_mail/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/agent_mail/framework/cli) - [Google ADK](https://composio.dev/toolkits/agent_mail/framework/google-adk) - [LangChain](https://composio.dev/toolkits/agent_mail/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/agent_mail/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/agent_mail/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/agent_mail/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/agent_mail/framework/crew-ai) ## TL;DR ### Why use Composio? Composio provides: - Access to 1,000+ managed apps from a single MCP endpoint. This makes it convenient for agents to run cross-app workflows. - Programmatic tool calling. Allows LLMs to write code in a remote workbench to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling. - Large tool response handling outside the LLM context. This minimizes context bloat from large tool responses. - Dynamic just-in-time access to thousands of tools across hundreds of apps. Composio loads the tools your agent needs, so LLMs are not overwhelmed by tools they do not need. ## Connect Agent mail to Antigravity ### Connect Agent mail to Antigravity Antigravity does not ship with one-click custom MCP install links yet, so configuration goes through the IDE's raw config file. The process takes under a minute. ### 1. Open the MCP Config Go to Antigravity Settings, open the Customizations tab, then click Open MCP Config to open mcp_config.json in the editor. ### 2. Get your API key Go to the [Composio Dashboard](https://dashboard.composio.dev/~/org/connect/clients/) and copy your API key. ### 3. Add Composio to mcp_config.json Paste the following configuration into the file: ```bash { "mcpServers": { "remote-composio": { "serverUrl": "https://connect.composio.dev/mcp", "headers": { "x-consumer-api-key": "your-composio-api-key" } } } } ``` ## What is the Agent mail MCP server, and what's possible with it? The Agent mail MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Agent mail account. It provides structured and secure access to your agent's dedicated inbox, so your agent can send emails, receive incoming messages, fetch specific conversations, and automate email-based workflows on your behalf. - Automated email sending: Instruct your agent to compose and send emails to any recipient, perfect for status updates, notifications, or outreach. - Message listing and inbox scanning: Let your agent quickly list all recent messages in the inbox to summarize, monitor, or trigger follow-up actions. - Targeted message retrieval: Have your agent fetch a specific message by ID, making it easy to pull full email content for context-aware decisions or replies. - Streamlined agent-to-agent communication: Enable your AI to directly interact with other agents or services via email, automating routine communication flows. ## Supported Tools | Tool slug | Name | Description | |---|---|---| | `AGENT_MAIL_CREATE_INBOX` | Create Inbox | Create a new AgentMail inbox via API. Returns the inbox_id and email address for sending/receiving messages. Use when provisioning new inboxes for agents or workflows. | | `AGENT_MAIL_GET_MESSAGE` | Get Message | Retrieve the complete details of a specific email message from an AgentMail inbox. This action returns the full message content including sender, recipients, subject, body (both text and HTML), attachments, labels, and metadata. Use this to read individual messages after discovering them via LIST_MESSAGES or webhooks. | | `AGENT_MAIL_LIST_INBOXES` | List Inboxes | List all inboxes available to the authenticated AgentMail account. Use this to discover valid inbox_id values for message operations. | | `AGENT_MAIL_LIST_MESSAGES` | List Messages | List messages from an AgentMail inbox. Returns a `messages` array; each message uses `message_id` and `timestamp` fields (not `id`, `date`, or `items`). | | `AGENT_MAIL_SEND_EMAIL` | Send Email | Send an email using AgentMail API | ## Supported Triggers | Trigger slug | Name | Description | |---|---|---| | `AGENT_MAIL_NEW_EMAIL_TRIGGER` | New Email Received | Trigger for new emails in an AgentMail inbox | ## Creating MCP Server - Stand-alone vs Composio SDK Once connected, Antigravity can access the Agent mail MCP server via Composio to run actions that you authorize directly from the agent panel. ## Complete Code None listed. ## Conclusion ### Conclusion You have successfully connected Agent mail to Antigravity using Composio Connect. Your agent can now use Agent mail securely without exposing credentials in prompts or local scripts. ## How to build Agent mail MCP Agent with another framework - [ChatGPT](https://composio.dev/toolkits/agent_mail/framework/chatgpt) - [OpenAI Agents SDK](https://composio.dev/toolkits/agent_mail/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/agent_mail/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/agent_mail/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/agent_mail/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/agent_mail/framework/codex) - [Cursor](https://composio.dev/toolkits/agent_mail/framework/cursor) - [VS Code](https://composio.dev/toolkits/agent_mail/framework/vscode) - [OpenCode](https://composio.dev/toolkits/agent_mail/framework/opencode) - [OpenClaw](https://composio.dev/toolkits/agent_mail/framework/openclaw) - [Hermes](https://composio.dev/toolkits/agent_mail/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/agent_mail/framework/cli) - [Google ADK](https://composio.dev/toolkits/agent_mail/framework/google-adk) - [LangChain](https://composio.dev/toolkits/agent_mail/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/agent_mail/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/agent_mail/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/agent_mail/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/agent_mail/framework/crew-ai) ## 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. - [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. - [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. - [Dailybot](https://composio.dev/toolkits/dailybot) - DailyBot streamlines team collaboration with chat-based standups, reminders, and polls. It keeps work flowing smoothly in your favorite messaging platforms. - [Dialmycalls](https://composio.dev/toolkits/dialmycalls) - Dialmycalls is a mass notification service for sending voice and text messages to contacts. It helps teams and organizations quickly broadcast urgent alerts and updates. - [Dialpad](https://composio.dev/toolkits/dialpad) - Dialpad is a cloud-based business phone and contact center system for teams. It unifies voice, video, messaging, and meetings across your devices. - [Discord](https://composio.dev/toolkits/discord) - Discord is a real-time messaging and VoIP platform for communities and teams. It lets users chat, share media, and collaborate across public and private channels. - [Discordbot](https://composio.dev/toolkits/discordbot) - Discordbot is an automation tool for Discord servers that handles moderation, messaging, and user engagement. It helps communities run smoothly by automating routine and complex tasks. - [Echtpost](https://composio.dev/toolkits/echtpost) - Echtpost is a secure digital communication platform for encrypted document and message exchange. It ensures confidential data stays private and protected during transmission. - [Egnyte](https://composio.dev/toolkits/egnyte) - Egnyte is a cloud-based platform for secure file sharing, storage, and governance. It helps teams collaborate efficiently while maintaining data compliance and security. - [Google Meet](https://composio.dev/toolkits/googlemeet) - Google Meet is a secure video conferencing platform for virtual meetings, chat, and screen sharing. It helps teams connect, collaborate, and communicate seamlessly from anywhere. - [Heartbeat](https://composio.dev/toolkits/heartbeat) - Heartbeat is a plug-and-play platform for building and managing online communities. It helps you organize users, channels, events, and discussions in one place. ## Frequently Asked Questions ### What are the differences in Tool Router MCP and Agent mail MCP? With a standalone Agent mail MCP server, the agents and LLMs can only access a fixed set of Agent mail tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Agent mail and many other apps based on the task at hand, all through a single MCP endpoint. ### Can I use Tool Router MCP with Antigravity? Yes, you can. Antigravity 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 Agent mail tools. ### Can I manage the permissions and scopes for Agent mail while using Tool Router? Yes, absolutely. You can configure which Agent mail 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 Agent mail data and credentials are handled as safely as possible. --- [See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)