# How to integrate 2chat MCP with Atomic Agent

```json
{
  "title": "How to integrate 2chat MCP with Atomic Agent",
  "toolkit": "2chat",
  "toolkit_slug": "_2chat",
  "framework": "Atomic Agent",
  "framework_slug": "atomic-agent",
  "url": "https://composio.dev/toolkits/_2chat/framework/atomic-agent",
  "markdown_url": "https://composio.dev/toolkits/_2chat/framework/atomic-agent.md",
  "updated_at": "2026-08-11T13:05:41.349Z"
}
```

## 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 2chat.
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 2chat account. See the [Atomic Agent documentation](https://atomicagent.io/docs/?cta_placement=atomic-agent-docs) for installation instructions.

## Also integrate 2chat with

- [OpenAI Agents SDK](https://composio.dev/toolkits/_2chat/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/_2chat/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/_2chat/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/_2chat/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/_2chat/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/_2chat/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/_2chat/framework/hermes-agent)
- [Google ADK](https://composio.dev/toolkits/_2chat/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/_2chat/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/_2chat/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/_2chat/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/_2chat/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/_2chat/framework/crew-ai)
- [Pydantic AI](https://composio.dev/toolkits/_2chat/framework/pydantic-ai)
- [AutoGen](https://composio.dev/toolkits/_2chat/framework/autogen)

## TL;DR

### How Atomic Agent connects to 2chat
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 2chat to Atomic Agent

### Connect 2chat 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 2chat. It searches Composio for the right tool.
- On first use, open the sign-in link returned in the chat. Connect your 2chat 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 2chat MCP server, and what's possible with it?

The 2chat MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your 2chat account. It provides structured and secure access to your messaging channels, so your agent can perform actions like sending and receiving WhatsApp messages, managing contacts, monitoring API usage, and automating group workflows on your behalf.
- Contact management and automation: Quickly add new contacts or retrieve existing ones, allowing your agent to keep your WhatsApp and text channels up to date and organized.
- API usage monitoring: Effortlessly check your current API usage and quotas, so your agent can help prevent service interruptions or overages.
- Webhook subscription review: Let your agent list and audit all active webhook subscriptions for your messaging channels, making it easy to monitor integrations and event triggers.
- Credential validation and account status: Have your agent validate API keys and fetch account information to ensure secure and reliable operation before performing messaging tasks.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `_2CHAT_CREATE_CONTACT` | Create Contact | Tool to create a new contact in your 2Chat account. Use after gathering and verifying first name and at least one contact detail (email, phone, or address). |
| `_2CHAT_GET_API_USAGE_INFO` | Get API Usage Info | Tool to retrieve current API usage and account information. Use when you need to monitor your remaining quotas before sending more requests. |
| `_2CHAT_LIST_CONTACTS` | List Contacts | Tool to list all contacts in your 2Chat account. Use when you need to retrieve your contact list after confirming your account connection. |
| `_2CHAT_LIST_WEBHOOKS` | List Webhook Subscriptions | List all configured webhook subscriptions for WhatsApp and phone call events. Use this when you need to audit, review, or retrieve UUIDs of your active webhook subscriptions. Returns details including webhook UUID, event type, channel UUID, callback URL, and creation timestamp. |
| `_2CHAT_TEST_API_KEY` | Test API Key | Tool to validate your API key and retrieve account info. Use when confirming credentials before performing other operations. |

## 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 2chat from Atomic Agent
With your account connected, ask Atomic Agent to work with 2chat 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 2chat MCP Agent with another framework

- [OpenAI Agents SDK](https://composio.dev/toolkits/_2chat/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/_2chat/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/_2chat/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/_2chat/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/_2chat/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/_2chat/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/_2chat/framework/hermes-agent)
- [Google ADK](https://composio.dev/toolkits/_2chat/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/_2chat/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/_2chat/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/_2chat/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/_2chat/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/_2chat/framework/crew-ai)
- [Pydantic AI](https://composio.dev/toolkits/_2chat/framework/pydantic-ai)
- [AutoGen](https://composio.dev/toolkits/_2chat/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.
- [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.
- [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.
- [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.
- [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.

## Frequently Asked Questions

### What are the differences in Tool Router MCP and 2chat MCP?

With a standalone 2chat MCP server, the agents and LLMs can only access a fixed set of 2chat tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from 2chat 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 2chat tools.

### Can I manage the permissions and scopes for 2chat while using Tool Router?

Yes, absolutely. You can configure which 2chat 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 2chat data and credentials are handled as safely as possible.

---
[See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)