# How to integrate Heyy MCP with Atomic Agent ```json { "title": "How to integrate Heyy MCP with Atomic Agent", "toolkit": "Heyy", "toolkit_slug": "heyy", "framework": "Atomic Agent", "framework_slug": "atomic-agent", "url": "https://composio.dev/toolkits/heyy/framework/atomic-agent", "markdown_url": "https://composio.dev/toolkits/heyy/framework/atomic-agent.md", "updated_at": "2026-09-18T06:05:59.020Z" } ``` ## Introduction Atomic Agent is an open-source AI agent that runs on your machine and supports local models through llama.cpp. Connect it to 1,500+ apps through Composio, including Heyy. This guide uses Atomic Agent's built-in Composio integration. You need Atomic Agent v0.5.6 or later, your own Composio API key, and a Heyy account. See the [Atomic Agent documentation](https://atomicagent.io/docs/?cta_placement=atomic-agent-docs) for installation instructions. ## Also integrate Heyy with - [OpenAI Agents SDK](https://composio.dev/toolkits/heyy/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/heyy/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/heyy/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/heyy/framework/claude-cowork) - [Grok Bot](https://composio.dev/toolkits/heyy/framework/grok-bot) - [Codex](https://composio.dev/toolkits/heyy/framework/codex) - [OpenClaw](https://composio.dev/toolkits/heyy/framework/openclaw) - [Hermes](https://composio.dev/toolkits/heyy/framework/hermes-agent) - [Google ADK](https://composio.dev/toolkits/heyy/framework/google-adk) - [LangChain](https://composio.dev/toolkits/heyy/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/heyy/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/heyy/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/heyy/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/heyy/framework/crew-ai) - [Pydantic AI](https://composio.dev/toolkits/heyy/framework/pydantic-ai) - [AutoGen](https://composio.dev/toolkits/heyy/framework/autogen) ## TL;DR ### How Atomic Agent connects to Heyy Atomic Agent connects to Composio's Tool Router over Streamable HTTP MCP. It discovers the tools needed for your request, and Composio handles account authentication. Execution and account-connection tools follow Atomic Agent's configured approval policy. Review any approval prompt before allowing an action on your connected account. ## Connect Heyy to Atomic Agent ### Connect Heyy to Atomic Agent - Sign up or sign in to the [Composio dashboard](https://dashboard.composio.dev/?cta_placement=atomic-agent-api-key). Copy your API key. - In Atomic Agent, open the Integrations tab and select Composio. Select API key, press e, paste the key, and press Enter. The tools become available immediately, without a restart. - Ask Atomic Agent to do something in Heyy. It searches Composio for the right tool. - On first use, open the sign-in link returned in the chat. Connect your Heyy account, then return to Atomic Agent to continue. ### Headless setup Add the following line to ~/.atomic-agent/.env, replacing YOUR_COMPOSIO_API_KEY with your key. Start Atomic Agent after saving the file. ```bash COMPOSIO_API_KEY=YOUR_COMPOSIO_API_KEY ``` ## What is the Heyy MCP server, and what's possible with it? The Heyy MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Heyy account. It provides structured and secure access so your agent can perform Heyy operations on your behalf. ## Supported Tools | Tool slug | Name | Description | |---|---|---| | `HEYY_CREATE_ATTRIBUTE` | Create Contact Attribute | Tool to create a new custom attribute for contacts in Heyy. Use when you need to add custom fields to track additional information about contacts, such as customer segments, preferences, or custom identifiers. | | `HEYY_CREATE_CONTACT` | Create Contact | Tool to create a new contact in Heyy with optional details including first name, last name, email, phone number, labels, and custom attributes. Use when you need to add a new contact to your Heyy account. | | `HEYY_CREATE_LABEL` | Create Label | Tool to create a new label for categorizing contacts in Heyy. Use when you need to organize contacts into categories or groups. | | `HEYY_CREATE_WEBHOOK` | Create Webhook | Tool to create a new webhook for receiving event notifications across multiple channels. Use when you need to set up real-time event notifications for messages. | | `HEYY_DELETE_ATTRIBUTE` | Delete Attribute | Tool to delete an attribute by its unique identifier. Use when you need to remove an attribute from the system. | | `HEYY_DELETE_LABEL` | Delete Label | Tool to delete a label by its unique identifier. Use when you need to remove a label from the system. | | `HEYY_DELETE_WEBHOOK` | Delete Webhook | Tool to delete a webhook by its unique identifier. Use when you need to remove a webhook from Heyy. | | `HEYY_LIST_ATTRIBUTES` | List Attributes | Tool to retrieve all attributes available in the Heyy system. Use when you need to get a list of all attributes with their properties and visibility settings. | | `HEYY_LIST_AUTOMATIONS` | List Automations | Tool to retrieve automation workflows for a specified channel. Use when you need to get all workflows configured for a channel. | | `HEYY_LIST_CHANNELS` | List Channels | Tool to retrieve all available channels from the Heyy system. Use when you need to get a complete list of channels with their details including name, type, status, and timestamps. | | `HEYY_LIST_MESSAGE_TEMPLATES` | List Message Templates | Tool to retrieve all message templates available in the Heyy system. Use when you need to view all existing templates for messaging. | | `HEYY_LIST_API_WEBHOOKS` | List API Webhooks | Tool to retrieve all API webhooks configured for the account. Use when you need to inspect or manage webhook configurations. | | `HEYY_UPDATE_WEBHOOK` | Update Webhook | Tool to update a webhook's URL and active status. Use when you need to modify an existing webhook's endpoint or enable/disable it. | ## Supported Triggers None listed. ## Troubleshooting ### Why is my API key rejected? Copy the key directly from the Composio dashboard. Atomic Agent requires ASCII characters because it sends the key in an HTTP header. Remove any extra characters introduced when copying. ### Why are Composio tools unavailable after saving a key? Check that you use Atomic Agent v0.5.6 or later and that Composio is enabled in your configuration. A "composio": { "enabled": false } setting disables the integration while keeping the saved key on disk. ### Does Composio have a free plan? The Hobby plan includes 100,000 tool calls per month. Composio-managed OAuth apps have a lower included allowance. See [Composio pricing](/pricing) for the current limits that apply to your connection. ## Complete Code None listed. ## Conclusion ### Use Heyy from Atomic Agent With your account connected, ask Atomic Agent to work with Heyy in natural language. You can connect more apps through the same Composio integration as you need them. Visit the [Atomic Agent website](https://atomicagent.io/?cta_placement=atomic-agent-site) or inspect the [Atomic Agent source code](https://github.com/AtomicBot-ai/atomic-agent?cta_placement=atomic-agent-repo). ## How to build Heyy MCP Agent with another framework - [OpenAI Agents SDK](https://composio.dev/toolkits/heyy/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/heyy/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/heyy/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/heyy/framework/claude-cowork) - [Grok Bot](https://composio.dev/toolkits/heyy/framework/grok-bot) - [Codex](https://composio.dev/toolkits/heyy/framework/codex) - [OpenClaw](https://composio.dev/toolkits/heyy/framework/openclaw) - [Hermes](https://composio.dev/toolkits/heyy/framework/hermes-agent) - [Google ADK](https://composio.dev/toolkits/heyy/framework/google-adk) - [LangChain](https://composio.dev/toolkits/heyy/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/heyy/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/heyy/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/heyy/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/heyy/framework/crew-ai) - [Pydantic AI](https://composio.dev/toolkits/heyy/framework/pydantic-ai) - [AutoGen](https://composio.dev/toolkits/heyy/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. - [Reddit](https://composio.dev/toolkits/reddit) - Reddit is a social news platform with thriving user-driven communities (subreddits). It's the go-to place for discussion, content sharing, and viral marketing. - [Facebook](https://composio.dev/toolkits/facebook) - Facebook is a social media and advertising platform for businesses and creators. It helps you connect, share, and manage content across your public Facebook Pages. - [Linkedin](https://composio.dev/toolkits/linkedin) - LinkedIn is a professional networking platform for connecting, sharing content, and engaging with business opportunities. It's the go-to place for building your professional brand and unlocking new career connections. - [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. - [Active campaign](https://composio.dev/toolkits/active_campaign) - ActiveCampaign is a marketing automation and CRM platform for managing email campaigns, sales pipelines, and customer segmentation. It helps businesses engage customers and drive growth through smart automation and targeted outreach. - [ActiveTrail](https://composio.dev/toolkits/active_trail) - ActiveTrail is a user-friendly email marketing and automation platform. It helps you reach subscribers and automate campaigns with ease. - [Adobe Marketing Agent MCP](https://composio.dev/toolkits/adobe_marketing_agent_mcp) - Adobe Marketing Agent MCP is Adobe's hosted MCP service that exposes marketing context, preferences, and agent capabilities. Use it to provide agents with campaign, audience, and analytics context via a managed integration. - [Aeroleads](https://composio.dev/toolkits/aeroleads) - Aeroleads is a B2B lead generation platform for finding business emails and phone numbers. Grow your sales pipeline faster with powerful prospecting tools. - [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. - [Ahrefs](https://composio.dev/toolkits/ahrefs) - Ahrefs is an SEO and marketing platform for site audits, keyword research, and competitor insights. It helps you improve search rankings and drive organic traffic. - [AimTell](https://composio.dev/toolkits/aimtell) - AimTell is a web push notification platform for managing websites, subscribers, campaigns, segments, and delivery analytics. Use it to send targeted browser notifications and measure engagement across your web push campaigns. - [Amcards](https://composio.dev/toolkits/amcards) - AMCards lets you create and mail personalized greeting cards online. Build stronger customer relationships with easy, automated card campaigns. - [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. - [Autobound](https://composio.dev/toolkits/autobound) - Autobound is an AI-powered sales engagement platform that crafts hyper-personalized outreach and insights. It helps sales teams boost response rates and close more deals through tailored content and recommendations. ## Frequently Asked Questions ### What are the differences in Tool Router MCP and Heyy MCP? With a standalone Heyy MCP server, the agents and LLMs can only access a fixed set of Heyy tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Heyy and many other apps based on the task at hand, all through a single MCP endpoint. ### Can I use Tool Router MCP with Atomic Agent? Yes, you can. Atomic Agent 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 Heyy tools. ### Can I manage the permissions and scopes for Heyy while using Tool Router? Yes, absolutely. You can configure which Heyy 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 Heyy data and credentials are handled as safely as possible. --- [See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)