# How to integrate Msg91 MCP with Atomic Agent

```json
{
  "title": "How to integrate Msg91 MCP with Atomic Agent",
  "toolkit": "Msg91",
  "toolkit_slug": "msg91",
  "framework": "Atomic Agent",
  "framework_slug": "atomic-agent",
  "url": "https://composio.dev/toolkits/msg91/framework/atomic-agent",
  "markdown_url": "https://composio.dev/toolkits/msg91/framework/atomic-agent.md",
  "updated_at": "2026-08-11T13:12:27.885Z"
}
```

## 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 Msg91.
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 Msg91 account. See the [Atomic Agent documentation](https://atomicagent.io/docs/?cta_placement=atomic-agent-docs) for installation instructions.

## Also integrate Msg91 with

- [OpenAI Agents SDK](https://composio.dev/toolkits/msg91/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/msg91/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/msg91/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/msg91/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/msg91/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/msg91/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/msg91/framework/hermes-agent)
- [Google ADK](https://composio.dev/toolkits/msg91/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/msg91/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/msg91/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/msg91/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/msg91/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/msg91/framework/crew-ai)
- [Pydantic AI](https://composio.dev/toolkits/msg91/framework/pydantic-ai)
- [AutoGen](https://composio.dev/toolkits/msg91/framework/autogen)

## TL;DR

### How Atomic Agent connects to Msg91
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 Msg91 to Atomic Agent

### Connect Msg91 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 Msg91. It searches Composio for the right tool.
- On first use, open the sign-in link returned in the chat. Connect your Msg91 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 Msg91 MCP server, and what's possible with it?

The Msg91 MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Msg91 account. It provides structured and secure access to your SMS, campaign, and user event data, so your agent can perform actions like sending SMS messages, tracking campaigns, recording user events, and monitoring delivery failures on your behalf.
- Send personalized SMS messages: Let your agent dispatch SMS messages to one or multiple recipients, making customer outreach fast and automated.
- List and track marketing campaigns: Instantly retrieve an overview of all your ongoing or past campaigns, including support for pagination.
- Create and log user events: Easily record user actions and behaviors in Msg91 Segmento so you can automate engagement and track interactions.
- Retrieve available event types: Ask your agent to list all defined event types to keep your analytics and segmentation organized and up to date.
- Monitor failed events for campaigns: Quickly inspect which events failed validation for any campaign, helping you troubleshoot and optimize your communication workflows.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `MSG91_CREATE_USER_EVENTS` | Create User Events | Create and track user events in MSG91 Segmento for customer behavior analysis and segmentation. Use this tool to record user actions and behaviors such as logins, purchases, page views, button clicks, or any custom events. These events help build user profiles and enable targeted campaigns based on user behavior. Examples: - Track user login events for engagement analysis - Record purchase events with product details for sales tracking - Log page views and clicks for behavior analytics - Capture custom events with properties for detailed segmentation |
| `MSG91_GET_EVENT_TYPES` | Get Event Types | Retrieves all event types configured in MSG91 Segmento. Event types represent different user actions and behaviors that can be tracked (e.g., purchases, signups, page views). Use this action to discover what events are available for tracking user behavior in your Segmento account. No parameters required - returns all event types. |
| `MSG91_GET_FAILED_EVENTS` | Get Failed Events | Retrieve failed user events from a MSG91 Segmento campaign. This tool fetches events that failed to process during campaign execution, helping you identify and debug issues such as validation errors, invalid recipients, or missing required data. Use this when you need to: - Investigate why certain events didn't process successfully - Get detailed failure reasons for troubleshooting - Monitor campaign health and identify patterns in failures - Retrieve failed events within a specific date range Results are paginated for large datasets. Requires a valid campaign_id from a Segmento campaign. |
| `MSG91_LIST_CAMPAIGNS` | List Campaigns | Tool to list all campaigns in Segmento. Use when you need to retrieve campaigns with pagination support. |
| `MSG91_RESEND_OTP` | Resend OTP | Resend OTP to the same mobile number via text message or voice call. Use when the original OTP was not received or expired, and the user needs a new code sent to the same number. |
| `MSG91_SEND_OTP` | Send OTP | Tool to send OTP (One-Time Password) to a mobile number using a pre-configured MSG91 template. Use when you need to verify user phone numbers for authentication, account registration, password reset, or transaction confirmation. |
| `MSG91_SEND_SMS_V5` | Send SMS via Flow (V5) | Send SMS messages using pre-defined templates via MSG91 Flow API v5. Use when you need to send template-based SMS with dynamic variable substitution to single or multiple recipients. Templates must be created and approved in MSG91 dashboard before use. |
| `MSG91_VERIFY_OTP` | Verify OTP | Tool to verify an OTP (One-Time Password) sent to a mobile number. Use when you need to confirm that the OTP code entered by the user matches the one sent via Send OTP API. |

## 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 Msg91 from Atomic Agent
With your account connected, ask Atomic Agent to work with Msg91 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 Msg91 MCP Agent with another framework

- [OpenAI Agents SDK](https://composio.dev/toolkits/msg91/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/msg91/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/msg91/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/msg91/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/msg91/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/msg91/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/msg91/framework/hermes-agent)
- [Google ADK](https://composio.dev/toolkits/msg91/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/msg91/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/msg91/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/msg91/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/msg91/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/msg91/framework/crew-ai)
- [Pydantic AI](https://composio.dev/toolkits/msg91/framework/pydantic-ai)
- [AutoGen](https://composio.dev/toolkits/msg91/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.
- [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.

## Frequently Asked Questions

### What are the differences in Tool Router MCP and Msg91 MCP?

With a standalone Msg91 MCP server, the agents and LLMs can only access a fixed set of Msg91 tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Msg91 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 Msg91 tools.

### Can I manage the permissions and scopes for Msg91 while using Tool Router?

Yes, absolutely. You can configure which Msg91 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 Msg91 data and credentials are handled as safely as possible.

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