# How to integrate Onesignal rest api MCP with Claude Agent SDK

```json
{
  "title": "How to integrate Onesignal rest api MCP with Claude Agent SDK",
  "toolkit": "Onesignal rest api",
  "toolkit_slug": "onesignal_rest_api",
  "framework": "Claude Agent SDK",
  "framework_slug": "claude-agents-sdk",
  "url": "https://composio.dev/toolkits/onesignal_rest_api/framework/claude-agents-sdk",
  "markdown_url": "https://composio.dev/toolkits/onesignal_rest_api/framework/claude-agents-sdk.md",
  "updated_at": "2026-05-12T10:20:40.184Z"
}
```

## Introduction

This guide walks you through connecting Onesignal rest api to the Claude Agent SDK using the Composio tool router. By the end, you'll have a working Onesignal rest api agent that can send push notification to all active users, list all devices registered for your app, view details of last 10 notifications through natural language commands.
This guide will help you understand how to give your Claude Agent SDK agent real control over a Onesignal rest api account through Composio's Onesignal rest api MCP server.
Before we dive in, let's take a quick look at the key ideas and tools involved.

## Also integrate Onesignal rest api with

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

## TL;DR

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

## What is Claude Agent SDK?

The Claude Agent SDK is Anthropic's official framework for building AI agents powered by Claude. It provides a streamlined interface for creating agents with MCP tool support and conversation management.
Key features include:
- Native MCP Support: Built-in support for Model Context Protocol servers
- Permission Modes: Control tool execution permissions
- Streaming Responses: Real-time response streaming for interactive applications
- Context Manager: Clean async context management for sessions

## What is the Onesignal rest api MCP server, and what's possible with it?

The Onesignal rest api MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your OneSignal account. It provides structured and secure access to your messaging platform, so your agent can perform actions like sending push notifications, managing devices, viewing app details, and segmenting audiences automatically on your behalf.
- Automated push notifications and messaging: Instantly have your agent create and send targeted push notifications to your users, keeping them engaged and informed.
- Device management and updates: Let your agent add, update, or remove registered devices (players) to keep your audience data fresh and accurate.
- App insights and metadata retrieval: Effortlessly fetch and review detailed app information, notification history, and device lists for better operational visibility.
- Audience segmentation and targeting: Enable your agent to view and utilize user segments, making it easy to target the right audience for every message.
- Notification analytics and history: Have your agent retrieve past notifications, track delivery, and analyze engagement trends for continuous improvement.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `ONESIGNAL_REST_API_BEGIN_LIVE_ACTIVITY` | Begin Live Activity | Tool to start a Live Activity on OneSignal. Use when you need to initiate a Live Activity session with a push token and subscription ID. |
| `ONESIGNAL_REST_API_CREATE_NOTIFICATION` | Create Notification | Tool to create and send a OneSignal push notification. Use when you have your message and target audience ready to dispatch notifications. |
| `ONESIGNAL_REST_API_CREATE_TEMPLATE` | Create Template | Tool to create reusable message templates for push, email, and SMS channels. Use when you need to create a template that can be accessed through both the dashboard and API using a template_id. |
| `ONESIGNAL_REST_API_CREATE_USER` | Create User | Tool to create a OneSignal user with optional subscriptions and aliases. Aliases provided in the payload will be used to look up an existing user. |
| `ONESIGNAL_REST_API_DELETE_ALIAS` | Delete Alias | Tool to delete an alias by alias label from a OneSignal user. Use when you need to remove a specific alias identity from a user's profile. |
| `ONESIGNAL_REST_API_DELETE_DEVICE` | Delete Device | Tool to delete a device (player) from a OneSignal app. Use when you need to remove a specific device by its player ID. |
| `ONESIGNAL_REST_API_FETCH_USER_IDENTITY` | Fetch User Identity | Tool to retrieve all aliases for a user identified by a specific alias. Use when you need to fetch the complete identity mapping for a OneSignal user. |
| `ONESIGNAL_REST_API_GET_ELIGIBLE_IAMS` | Get Eligible In-App Messages | Tool to retrieve the manifest of In-App Messages that a subscription is eligible to display. Use when you need to fetch eligible IAMs for a specific subscription. |
| `ONESIGNAL_REST_API_UPDATE_DEVICE` | Update Device | Tool to update properties of an existing device. Use when you need to modify device attributes after registration. |
| `ONESIGNAL_REST_API_UPDATE_SUBSCRIPTION` | Update Subscription | Tool to update an existing subscription's properties. Use when you need to modify subscription attributes like token, enabled status, or device information. |
| `ONESIGNAL_REST_API_VIEW_AN_APP` | View OneSignal App | Tool to retrieve metadata for a single OneSignal app. Use when you need to fetch app details by its ID. |
| `ONESIGNAL_REST_API_VIEW_DEVICE` | View Device | Tool to retrieve details of a specific device (player). Use when you have a OneSignal player_id and need current device info. |
| `ONESIGNAL_REST_API_VIEW_DEVICES` | View Devices | Tool to retrieve a paginated list of devices (players) for a OneSignal app. Use when you need to list or audit all registered devices for a given app. |
| `ONESIGNAL_REST_API_VIEW_NOTIFICATIONS` | View Notifications | Tool to retrieve details of multiple notifications. Use when you need to list notifications for a specific app. |
| `ONESIGNAL_REST_API_VIEW_SEGMENTS` | View Segments | Tool to view segments for a OneSignal app. Use when you need to list all segments associated with an app. |

## Supported Triggers

None listed.

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

The Onesignal rest api MCP server is an implementation of the Model Context Protocol that connects your AI agent to Onesignal rest api. It provides structured and secure access so your agent can perform Onesignal rest api 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 Claude/Anthropic API Key
- Primary know-how of Claude Agents SDK
- A Onesignal rest api account
- Some knowledge of Python

### 1. Getting API Keys for Claude/Anthropic and Composio

Claude/Anthropic API Key
- Go to the [Anthropic Console](https://console.anthropic.com/settings/organization/api-keys) and create an API key. You'll need credits to use the models.
- 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).
- Navigate to your API settings and generate a new API key.
- Store this key securely as you'll need it for authentication.

### 2. Install dependencies

No description provided.
```python
pip install composio-anthropic claude-agent-sdk python-dotenv
```

```typescript
npm install @anthropic-ai/claude-agent-sdk @composio/core dotenv
```

### 3. Set up environment variables

Create a .env file in your project root.
What's happening:
- COMPOSIO_API_KEY authenticates with Composio
- USER_ID identifies the user for session management
- ANTHROPIC_API_KEY authenticates with Anthropic/Claude
```bash
COMPOSIO_API_KEY=your_composio_api_key_here
USER_ID=your_user_id_here
ANTHROPIC_API_KEY=your_anthropic_api_key_here
```

### 4. Import dependencies

No description provided.
```python
import asyncio
from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions
import os
from composio import Composio
from dotenv import load_dotenv

load_dotenv()
```

```typescript
import 'dotenv/config';
import readline from 'node:readline';
import { Composio } from '@composio/core';
import { query, type Options } from "@anthropic-ai/claude-agent-sdk";

dotenv.config();
```

### 5. Create a Composio instance and Tool Router session

No description provided.
```python
async def chat_with_remote_mcp():
    api_key = os.getenv("COMPOSIO_API_KEY")
    if not api_key:
        raise RuntimeError("COMPOSIO_API_KEY is not set")

    composio = Composio(api_key=api_key)

    # Create Tool Router session for Onesignal rest api
    mcp_server = composio.create(
        user_id=os.getenv("USER_ID"),
        toolkits=["onesignal_rest_api"]
    )

    url = mcp_server.mcp.url

    if not url:
        raise ValueError("Session URL not found")
```

```typescript
async function chat() {
  const { COMPOSIO_API_KEY, USER_ID } = process.env;
  if (!COMPOSIO_API_KEY || !USER_ID) {
    throw new Error('COMPOSIO_API_KEY and USER_ID required in .env');
  }

  const composio = new Composio({ apiKey: COMPOSIO_API_KEY });

  // Create Tool Router session for Onesignal rest api
  const session = await composio.create(USER_ID, {
    toolkits: ['onesignal_rest_api'],
  });
  const mcpUrl = session?.mcp.url;
```

### 6. Configure Claude Agent with MCP

No description provided.
```python
# Configure remote MCP server for Claude
options = ClaudeAgentOptions(
    permission_mode="bypassPermissions",
    mcp_servers={
        "composio": {
            "type": "http",
            "url": url,
            "headers": {
                "x-api-key": os.getenv("COMPOSIO_API_KEY")
            }
        }
    },
    system_prompt="You are a helpful assistant with access to Onesignal rest api tools via Composio.",
    max_turns=10
)
```

```typescript
const options: Options = {
  permissionMode: 'bypassPermissions',
  mcpServers: {
    composio: {
      type: 'http',
      url: mcpUrl,
      headers: { 'x-api-key': COMPOSIO_API_KEY }
    }
  },
  systemPrompt: 'You are a helpful assistant with access to Onesignal rest api tools via Composio.',
  maxTurns: 10,
};
```

### 7. Create client and start chat loop

No description provided.
```python
# Create client with context manager
async with ClaudeSDKClient(options=options) as client:
    print("\nChat started. Type 'exit' or 'quit' to end.\n")

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

        # Send query
        await client.query(user_input)

        # Receive and print response
        print("Claude: ", end="", flush=True)
        async for message in client.receive_response():
            if hasattr(message, "content"):
                for block in message.content:
                    if hasattr(block, "text"):
                        print(block.text, end="", flush=True)
        print()
```

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

  console.log('\nChat started. Type "exit" to quit.\n');

  let isProcessing = false;

  async function ask(prompt: string) {
    isProcessing = true;
    rl.pause();

    process.stdout.write('Claude is thinking...');
    const stream = query({ prompt, options });

    let firstChunk = true;
    for await (const msg of stream) {
      const content = (msg as any).message?.content || (msg as any).content;
      if (Array.isArray(content)) {
        for (const block of content) {
          if (block.type === 'text' && block.text) {
            if (firstChunk) {
              process.stdout.write('\r\x1b[K');
              process.stdout.write('Claude: ');
              firstChunk = false;
            }
            process.stdout.write(block.text);
          }
        }
      }
    }
    process.stdout.write('\n\n');

    isProcessing = false;
    rl.resume();
    rl.prompt();
  }

  rl.on('line', async (line) => {
    if (isProcessing) return;

    const input = line.trim();
    if (input === 'exit') {
      rl.close();
      process.exit(0);
    }
    if (input) await ask(input);
    else rl.prompt();
  });

  await ask('What can you help me with?');
}
```

### 8. Run the application

No description provided.
```python
if __name__ == "__main__":
    asyncio.run(chat_with_remote_mcp())
```

```typescript
try {
  await chat();
} catch (error) {
  console.error(error);
  process.exit(1);
}
```

## Complete Code

```python
import asyncio
from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions
import os
from composio import Composio
from dotenv import load_dotenv

load_dotenv()

async def chat_with_remote_mcp():
    api_key = os.getenv("COMPOSIO_API_KEY")
    if not api_key:
        raise RuntimeError("COMPOSIO_API_KEY is not set")

    composio = Composio(api_key=api_key)

    # Create Tool Router session for Onesignal rest api
    mcp_server = composio.create(
        user_id=os.getenv("USER_ID"),
        toolkits=["onesignal_rest_api"]
    )

    url = mcp_server.mcp.url

    if not url:
        raise ValueError("Session URL not found")

    # Configure remote MCP server for Claude
    options = ClaudeAgentOptions(
        permission_mode="bypassPermissions",
        mcp_servers={
            "composio": {
                "type": "http",
                "url": url,
                "headers": {
                    "x-api-key": os.getenv("COMPOSIO_API_KEY")
                }
            }
        },
        system_prompt="You are a helpful assistant with access to Onesignal rest api tools via Composio.",
        max_turns=10
    )

    # Create client with context manager
    async with ClaudeSDKClient(options=options) as client:
        print("\nChat started. Type 'exit' or 'quit' to end.\n")

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

            # Send query
            await client.query(user_input)

            # Receive and print response
            print("Claude: ", end="", flush=True)
            async for message in client.receive_response():
                if hasattr(message, "content"):
                    for block in message.content:
                        if hasattr(block, "text"):
                            print(block.text, end="", flush=True)
            print()

if __name__ == "__main__":
    asyncio.run(chat_with_remote_mcp())
```

```typescript
import 'dotenv/config';
import readline from 'node:readline';
import { Composio } from '@composio/core';
import { query, type Options } from "@anthropic-ai/claude-agent-sdk";

async function chat() {
  const { COMPOSIO_API_KEY, USER_ID } = process.env;
  if (!COMPOSIO_API_KEY || !USER_ID) {
    throw new Error('COMPOSIO_API_KEY and USER_ID required in .env');
  }

  const composio = new Composio({ apiKey: COMPOSIO_API_KEY });
  const session = await composio.create(USER_ID, {
    toolkits: ['onesignal_rest_api']
  });
  const mcp_url = session?.mcp.url;

  const options: Options = {
    permissionMode: 'bypassPermissions',
    mcpServers: {
      composio: {
        type: 'http',
        url: mcp_url,
        headers: { 'x-api-key': COMPOSIO_API_KEY }
      }
    },
    systemPrompt: 'You are a helpful assistant with access to Onesignal rest api tools via Composio.',
    maxTurns: 10,
  };

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

  console.log('\nChat started. Type "exit" to quit.\n');

  let isProcessing = false;

  async function ask(prompt: string) {
    isProcessing = true;
    rl.pause();

    process.stdout.write('Claude is thinking...');
    const stream = query({ prompt, options });

    let firstChunk = true;
    for await (const msg of stream) {
      const content = (msg as any).message?.content || (msg as any).content;
      if (Array.isArray(content)) {
        for (const block of content) {
          if (block.type === 'text' && block.text) {
            if (firstChunk) {
              process.stdout.write('\r\x1b[K');
              process.stdout.write('Claude: ');
              firstChunk = false;
            }
            process.stdout.write(block.text);
          }
        }
      }
    }
    process.stdout.write('\n\n');

    isProcessing = false;
    rl.resume();
    rl.prompt();
  }

  rl.on('line', async (line) => {
    if (isProcessing) return;

    const input = line.trim();
    if (input === 'exit') {
      rl.close();
      process.exit(0);
    }
    if (input) await ask(input);
    else rl.prompt();
  });

  await ask('What can you help me with?');
}

try {
  await chat();
} catch (error) {
  console.error(error);
  process.exit(1);
}
```

## Conclusion

You've successfully built a Claude Agent SDK agent that can interact with Onesignal rest api through Composio's Tool Router.
Key features:
- Native MCP support through Claude's agent framework
- Streaming responses for real-time interaction
- Permission bypass for smooth automated workflows
You can extend this by adding more toolkits, implementing custom business logic, or building a web interface around the agent.

## How to build Onesignal rest api MCP Agent with another framework

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

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## Frequently Asked Questions

### What are the differences in Tool Router MCP and Onesignal rest api MCP?

With a standalone Onesignal rest api MCP server, the agents and LLMs can only access a fixed set of Onesignal rest api tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Onesignal rest api and many other apps based on the task at hand, all through a single MCP endpoint.

### Can I use Tool Router MCP with Claude Agent SDK?

Yes, you can. Claude Agent 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 Onesignal rest api tools.

### Can I manage the permissions and scopes for Onesignal rest api while using Tool Router?

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

---
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