# How to integrate Msg91 MCP with OpenAI Agents SDK

```json
{
  "title": "How to integrate Msg91 MCP with OpenAI Agents SDK",
  "toolkit": "Msg91",
  "toolkit_slug": "msg91",
  "framework": "OpenAI Agents SDK",
  "framework_slug": "open-ai-agents-sdk",
  "url": "https://composio.dev/toolkits/msg91/framework/open-ai-agents-sdk",
  "markdown_url": "https://composio.dev/toolkits/msg91/framework/open-ai-agents-sdk.md",
  "updated_at": "2026-05-12T10:19:35.735Z"
}
```

## Introduction

This guide walks you through connecting Msg91 to the OpenAI Agents SDK using the Composio tool router. By the end, you'll have a working Msg91 agent that can send sms to new customer leads, list all ongoing marketing campaigns, fetch failed event logs from last week through natural language commands.
This guide will help you understand how to give your OpenAI Agents SDK agent real control over a Msg91 account through Composio's Msg91 MCP server.
Before we dive in, let's take a quick look at the key ideas and tools involved.

## Also integrate Msg91 with

- [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)
- [CLI](https://composio.dev/toolkits/msg91/framework/cli)
- [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)

## TL;DR

Here's what you'll learn:
- Get and set up your OpenAI and Composio API keys
- Install the necessary dependencies
- Initialize Composio and create a Tool Router session for Msg91
- Configure an AI agent that can use Msg91 as a tool
- Run a live chat session where you can ask the agent to perform Msg91 operations

## What is OpenAI Agents SDK?

The OpenAI Agents SDK is a lightweight framework for building AI agents that can use tools and maintain conversation state. It provides a simple interface for creating agents with hosted MCP tool support.
Key features include:
- Hosted MCP Tools: Connect to external services through hosted MCP endpoints
- SQLite Sessions: Persist conversation history across interactions
- Simple API: Clean interface with Agent, Runner, and tool configuration
- Streaming Support: Real-time response streaming for interactive applications

## 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.

## Creating MCP Server - Stand-alone vs Composio SDK

The Msg91 MCP server is an implementation of the Model Context Protocol that connects your AI agent to Msg91. It provides structured and secure access so your agent can perform Msg91 operations on your behalf through a secure, permission-based interface.
With Composio's managed implementation, you don't have to create your own developer app. For production, if you're building an end product, we recommend using your own credentials. The managed server helps you prototype fast and go from 0-1 faster.

## Step-by-step Guide

### 1. Prerequisites

Before starting, make sure you have:
- Composio API Key and OpenAI API Key
- Primary know-how of OpenAI Agents SDK
- A live Msg91 project
- Some knowledge of Python or Typescript

### 1. Getting API Keys for OpenAI and Composio

OpenAI API Key
- Go to the [OpenAI dashboard](https://platform.openai.com/settings/organization/api-keys) and create an API key. You'll need credits to use the models, or you can connect to another model provider.
- Keep the API key safe.
Composio API Key
- Log in to the [Composio dashboard](https://dashboard.composio.dev?utm_source=toolkits&utm_medium=framework_docs).
- Go to Settings and copy your API key.

### 2. Install dependencies

Install the Composio SDK and the OpenAI Agents SDK.
```python
pip install composio_openai_agents openai-agents python-dotenv
```

```typescript
npm install @composio/openai-agents @openai/agents dotenv
```

### 3. Set up environment variables

Create a .env file and add your OpenAI and Composio API keys.
```bash
OPENAI_API_KEY=sk-...your-api-key
COMPOSIO_API_KEY=your-api-key
USER_ID=composio_user@gmail.com
```

### 4. Import dependencies

What's happening:
- You're importing all necessary libraries.
- The Composio and OpenAIAgentsProvider classes are imported to connect your OpenAI agent to Composio tools like Msg91.
```python
import asyncio
import os
from dotenv import load_dotenv

from composio import Composio
from composio_openai_agents import OpenAIAgentsProvider
from agents import Agent, Runner, HostedMCPTool, SQLiteSession
```

```typescript
import 'dotenv/config';
import { Composio } from '@composio/core';
import { OpenAIAgentsProvider } from '@composio/openai-agents';
import { Agent, hostedMcpTool, run, OpenAIConversationsSession } from '@openai/agents';
import * as readline from 'readline';
```

### 5. Set up the Composio instance

No description provided.
```python
load_dotenv()

api_key = os.getenv("COMPOSIO_API_KEY")
user_id = os.getenv("USER_ID")

if not api_key:
    raise RuntimeError("COMPOSIO_API_KEY is not set. Create a .env file with COMPOSIO_API_KEY=your_key")

# Initialize Composio
composio = Composio(api_key=api_key, provider=OpenAIAgentsProvider())
```

```typescript
dotenv.config();

const composioApiKey = process.env.COMPOSIO_API_KEY;
const userId = process.env.USER_ID;

if (!composioApiKey) {
  throw new Error('COMPOSIO_API_KEY is not set. Create a .env file with COMPOSIO_API_KEY=your_key');
}
if (!userId) {
  throw new Error('USER_ID is not set');
}

// Initialize Composio
const composio = new Composio({
  apiKey: composioApiKey,
  provider: new OpenAIAgentsProvider(),
});
```

### 6. Create a Tool Router session

What is happening:
- You give the Tool Router the user id and the toolkits you want available. Here, it is only msg91.
- The router checks the user's Msg91 connection and prepares the MCP endpoint.
- The returned session.mcp.url is the MCP URL that your agent will use to access Msg91.
- This approach keeps things lightweight and lets the agent request Msg91 tools only when needed during the conversation.
```python
# Create a Msg91 Tool Router session
session = composio.create(
    user_id=user_id,
    toolkits=["msg91"]
)

mcp_url = session.mcp.url
```

```typescript
// Create Tool Router session for Msg91
const session = await composio.create(userId as string, {
  toolkits: ['msg91'],
});
const mcpUrl = session.mcp.url;
```

### 7. Configure the agent

No description provided.
```python
# Configure agent with MCP tool
agent = Agent(
    name="Assistant",
    model="gpt-5",
    instructions=(
        "You are a helpful assistant that can access Msg91. "
        "Help users perform Msg91 operations through natural language."
    ),
    tools=[
        HostedMCPTool(
            tool_config={
                "type": "mcp",
                "server_label": "tool_router",
                "server_url": mcp_url,
                "headers": {"x-api-key": api_key},
                "require_approval": "never",
            }
        )
    ],
)
```

```typescript
// Configure agent with MCP tool
const agent = new Agent({
  name: 'Assistant',
  model: 'gpt-5',
  instructions:
    'You are a helpful assistant that can access Msg91. Help users perform Msg91 operations through natural language.',
  tools: [
    hostedMcpTool({
      serverLabel: 'tool_router',
      serverUrl: mcpUrl,
      headers: { 'x-api-key': composioApiKey },
      requireApproval: 'never',
    }),
  ],
});
```

### 8. Start chat loop and handle conversation

No description provided.
```python
print("\nComposio Tool Router session created.")

chat_session = SQLiteSession("conversation_openai_toolrouter")

print("\nChat started. Type your requests below.")
print("Commands: 'exit', 'quit', or 'q' to end\n")

async def main():
    try:
        result = await Runner.run(
            agent,
            "What can you help me with?",
            session=chat_session
        )
        print(f"Assistant: {result.final_output}\n")
    except Exception as e:
        print(f"Error: {e}\n")

    while True:
        user_input = input("You: ").strip()
        if user_input.lower() in {"exit", "quit", "q"}:
            print("Goodbye!")
            break

        result = await Runner.run(
            agent,
            user_input,
            session=chat_session
        )
        print(f"Assistant: {result.final_output}\n")

asyncio.run(main())
```

```typescript
// Keep conversation state across turns
const conversationSession = new OpenAIConversationsSession();

// Simple CLI
const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
  prompt: 'You: ',
});

console.log('\nComposio Tool Router session created.');
console.log('\nChat started. Type your requests below.');
console.log("Commands: 'exit', 'quit', or 'q' to end\n");

try {
  const first = await run(agent, 'What can you help me with?', { session: conversationSession });
  console.log(`Assistant: ${first.finalOutput}\n`);
} catch (e) {
  console.error('Error:', e instanceof Error ? e.message : e, '\n');
}

rl.prompt();

rl.on('line', async (userInput) => {
  const text = userInput.trim();

  if (['exit', 'quit', 'q'].includes(text.toLowerCase())) {
    console.log('Goodbye!');
    rl.close();
    process.exit(0);
  }

  if (!text) {
    rl.prompt();
    return;
  }

  try {
    const result = await run(agent, text, { session: conversationSession });
    console.log(`\nAssistant: ${result.finalOutput}\n`);
  } catch (e) {
    console.error('Error:', e instanceof Error ? e.message : e, '\n');
  }

  rl.prompt();
});

rl.on('close', () => {
  console.log('\n👋 Session ended.');
  process.exit(0);
});
```

## Complete Code

```python
import asyncio
import os
from dotenv import load_dotenv

from composio import Composio
from composio_openai_agents import OpenAIAgentsProvider
from agents import Agent, Runner, HostedMCPTool, SQLiteSession

load_dotenv()

api_key = os.getenv("COMPOSIO_API_KEY")
user_id = os.getenv("USER_ID")

if not api_key:
    raise RuntimeError("COMPOSIO_API_KEY is not set. Create a .env file with COMPOSIO_API_KEY=your_key")

# Initialize Composio
composio = Composio(api_key=api_key, provider=OpenAIAgentsProvider())

# Create Tool Router session
session = composio.create(
    user_id=user_id,
    toolkits=["msg91"]
)
mcp_url = session.mcp.url

# Configure agent with MCP tool
agent = Agent(
    name="Assistant",
    model="gpt-5",
    instructions=(
        "You are a helpful assistant that can access Msg91. "
        "Help users perform Msg91 operations through natural language."
    ),
    tools=[
        HostedMCPTool(
            tool_config={
                "type": "mcp",
                "server_label": "tool_router",
                "server_url": mcp_url,
                "headers": {"x-api-key": api_key},
                "require_approval": "never",
            }
        )
    ],
)

print("\nComposio Tool Router session created.")

chat_session = SQLiteSession("conversation_openai_toolrouter")

print("\nChat started. Type your requests below.")
print("Commands: 'exit', 'quit', or 'q' to end\n")

async def main():
    try:
        result = await Runner.run(
            agent,
            "What can you help me with?",
            session=chat_session
        )
        print(f"Assistant: {result.final_output}\n")
    except Exception as e:
        print(f"Error: {e}\n")

    while True:
        user_input = input("You: ").strip()
        if user_input.lower() in {"exit", "quit", "q"}:
            print("Goodbye!")
            break

        result = await Runner.run(
            agent,
            user_input,
            session=chat_session
        )
        print(f"Assistant: {result.final_output}\n")

asyncio.run(main())
```

```typescript
import 'dotenv/config';
import { Composio } from '@composio/core';
import { OpenAIAgentsProvider } from '@composio/openai-agents';
import { Agent, hostedMcpTool, run, OpenAIConversationsSession } from '@openai/agents';
import * as readline from 'readline';

const composioApiKey = process.env.COMPOSIO_API_KEY;
const userId = process.env.USER_ID;

if (!composioApiKey) {
  throw new Error('COMPOSIO_API_KEY is not set. Create a .env file with COMPOSIO_API_KEY=your_key');
}
if (!userId) {
  throw new Error('USER_ID is not set');
}

// Initialize Composio
const composio = new Composio({
  apiKey: composioApiKey,
  provider: new OpenAIAgentsProvider(),
});

async function main() {
  // Create Tool Router session
  const session = await composio.create(userId as string, {
    toolkits: ['msg91'],
  });
  const mcpUrl = session.mcp.url;

  // Configure agent with MCP tool
  const agent = new Agent({
    name: 'Assistant',
    model: 'gpt-5',
    instructions:
      'You are a helpful assistant that can access Msg91. Help users perform Msg91 operations through natural language.',
    tools: [
      hostedMcpTool({
        serverLabel: 'tool_router',
        serverUrl: mcpUrl,
        headers: { 'x-api-key': composioApiKey },
        requireApproval: 'never',
      }),
    ],
  });

  // Keep conversation state across turns
  const conversationSession = new OpenAIConversationsSession();

  // Simple CLI
  const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    prompt: 'You: ',
  });

  console.log('\nComposio Tool Router session created.');
  console.log('\nChat started. Type your requests below.');
  console.log("Commands: 'exit', 'quit', or 'q' to end\n");

  try {
    const first = await run(agent, 'What can you help me with?', { session: conversationSession });
    console.log(`Assistant: ${first.finalOutput}\n`);
  } catch (e) {
    console.error('Error:', e instanceof Error ? e.message : e, '\n');
  }

  rl.prompt();

  rl.on('line', async (userInput) => {
    const text = userInput.trim();

    if (['exit', 'quit', 'q'].includes(text.toLowerCase())) {
      console.log('Goodbye!');
      rl.close();
      process.exit(0);
    }

    if (!text) {
      rl.prompt();
      return;
    }

    try {
      const result = await run(agent, text, { session: conversationSession });
      console.log(`\nAssistant: ${result.finalOutput}\n`);
    } catch (e) {
      console.error('Error:', e instanceof Error ? e.message : e, '\n');
    }

    rl.prompt();
  });

  rl.on('close', () => {
    console.log('\nSession ended.');
    process.exit(0);
  });
}

main().catch((err) => {
  console.error('Fatal error:', err);
  process.exit(1);
});
```

## Conclusion

This was a starter code for integrating Msg91 MCP with OpenAI Agents SDK to build a functional AI agent that can interact with Msg91.
Key features:
- Hosted MCP tool integration through Composio's Tool Router
- SQLite session persistence for conversation history
- Simple async chat loop for interactive testing
You can extend this by adding more toolkits, implementing custom business logic, or building a web interface around the agent.

## How to build Msg91 MCP Agent with another framework

- [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)
- [CLI](https://composio.dev/toolkits/msg91/framework/cli)
- [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)

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## 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 OpenAI Agents SDK?

Yes, you can. OpenAI Agents SDK 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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