Onesignal MCP

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What is onesignal-mcp

onesignal-mcp is a Model Context Protocol (MCP) server designed to facilitate interactions with the OneSignal API. Developed by WeirdBrains, this server provides a streamlined interface for managing various communication channels such as push notifications, emails, and SMS. Through the OneSignal REST API, it empowers users to efficiently manage user devices, create and manage segments and templates, and access detailed app analytics. The server acts as a bridge, enabling easy communication and management of multiple OneSignal applications from a single point.

How to Use onesignal-mcp

Using onesignal-mcp is straightforward. First, ensure you have Python 3.7 or higher installed, along with the python-dotenv and requests packages. After setting up your environment, clone the onesignal-mcp repository and install the necessary dependencies.

To configure the server, create a .env file in the root directory with your OneSignal credentials. This includes your App ID, REST API Key, and, if applicable, an Organization API Key for organization-level operations.

Once the server is configured, you can start it using a simple Python command. The server will register with the MCP system, making its tools available for use. With the server running, you can send notifications, manage apps, and perform a variety of operations through straightforward Python scripts or commands.

Key Features of onesignal-mcp

onesignal-mcp offers a robust set of features designed to enhance your communication capabilities:

Messaging Management: Easily send push notifications, emails, and SMS. View sent messages, access detailed message information, and cancel scheduled messages if necessary.
Device Management: Manage user devices by viewing device lists and details, ensuring you can track and engage with your audience effectively.
Segment Management: Create and manage user segments with specific filters, allowing for targeted messaging strategies.
Template Management: Create and manage templates for emails and notifications, streamlining your communication process.
Multi-App Support: Seamlessly manage multiple OneSignal applications. Add, update, switch, and remove app configurations without hassle.
App Information: Access detailed information about the configured OneSignal app, including analytics and performance metrics.
Comprehensive Logging: The server includes logging capabilities to assist with debugging and monitoring, ensuring transparency and ease of troubleshooting.

onesignal-mcp is a versatile tool that simplifies the management of communication channels through OneSignal's API. Whether you're a developer looking to integrate advanced notification capabilities or an organization seeking efficient communication management, onesignal-mcp offers the tools you need to succeed.

A Model Context Protocol (MCP) server for interacting with the OneSignal API. This server provides a convenient interface for managing push notifications, emails, SMS, user devices, segments, templates, and more through OneSignal's REST API. License: MIT Version

Overview

This MCP server wraps the OneSignal REST API to provide a set of tools for managing your OneSignal applications and sending messages to your users. It supports all major OneSignal operations including:

Sending push notifications, emails, and SMS
Managing user devices and subscriptions
Creating and managing segments
Creating and managing templates
Viewing app information and analytics
Organization-level operations
Managing multiple OneSignal applications

Requirements

Python 3.7 or higher
python-dotenv package
requests package
OneSignal account with API credentials

Installation

Option 1: Clone from GitHub

# Clone the repository
git clone 
cd onesignal-mcp
# Install dependencies
pip install -r requirements.txt

Option 2: Install as a Package (Coming Soon)

pip install onesignal-mcp

Configuration

Create a .env file in the root directory with your OneSignal credentials:

# Default app credentials (optional, you can also add apps via the API)
ONESIGNAL_APP_ID=your_app_id_here
ONESIGNAL_API_KEY=your_rest_api_key_here
# Organization API key (for org-level operations)
ONESIGNAL_ORG_API_KEY=your_organization_api_key_here

You can find your OneSignal credentials in your OneSignal dashboard:

App ID: Settings > Keys & IDs > OneSignal App ID
REST API Key: Settings > Keys & IDs > REST API Key
Organization API Key: Organization Settings > API Keys

Usage

Running the Server

python onesignal_server.py

The server will start and register itself with the MCP system, making its tools available for use.

Basic Usage Examples

Sending a Push Notification

# Send a notification to all subscribed users
result = await send_notification(
 title="Hello World",
 message="This is a test notification",
 segment="Subscribed Users"
print(result)

Working with Multiple Apps

# Add a new app configuration
await add_app(
 key="my_second_app", 
 app_id="second-app-id", 
 api_key="second-app-api-key", 
 name="My Second App"
# List all configured apps
apps = await list_apps()
print(apps)
# Switch to the new app
await switch_app("my_second_app")
# Send a notification using the current app
await send_notification(
 title="Hello", 
 message="This is from my second app"
# Send a notification from a specific app (without switching)
await send_notification(
 title="Hello", 
 message="This is from my first app", 
 app_key="mandible"

Managing Segments

# List all segments
segments = await view_segments()
print(segments)
# Create a new segment
result = await create_segment(
 name="High Value Users",
 filters='[{"field":"amount_spent", "relation":">", "value":"100"}]'
print(result)

Working with Templates

# Create an email template
result = await create_template(
 name="Welcome Email",
 title="Welcome to Our App",
 message="<html><body><h1>Welcome!</h1><p>Thank you for joining us.</p></body></html>",
 template_type="email"
print(result)

Multi-App Support

This server supports managing multiple OneSignal applications. You can:

Add multiple app configurations with different identifiers
Switch between apps when making API calls
Specify which app to use for individual operations

App Management Tools

list_apps: List all configured OneSignal apps in the server
add_app: Add a new OneSignal app configuration
update_app: Update an existing OneSignal app configuration
remove_app: Remove an OneSignal app configuration
switch_app: Switch the current app to use for API requests

Available Tools

Message Management

send_notification: Send a new push notification, email, or SMS
view_messages: List recent messages sent through OneSignal
view_message_details: Get detailed information about a specific message
cancel_message: Cancel a scheduled message

Device Management

view_devices: List devices (users) registered in your OneSignal app
view_device_details: Get detailed information about a specific device

Segment Management

view_segments: List all segments available in your OneSignal app
create_segment: Create a new segment with specified filters
delete_segment: Delete an existing segment

Template Management

view_templates: List all templates available in your OneSignal app
view_template_details: Get detailed information about a specific template
create_template: Create a new template for notifications or emails

App Information

view_app_details: Get detailed information about the configured OneSignal app

Logging

The server includes comprehensive logging to help with debugging and monitoring. Logs are output to the console by default, with the following format:

YYYY-MM-DD HH:MM:SS - onesignal-mcp - LEVEL - Message

You can adjust the logging level by modifying the logging.basicConfig call in the server file.

Testing

The OneSignal MCP server includes a comprehensive test suite to ensure all functionality works as expected. The tests use Python's built-in unittest framework and mock external API calls to test the server's behavior.

Running Tests

To run the tests, use the following command:

python -m unittest discover tests

This will discover and run all tests in the tests directory.

Test Coverage

The test suite covers:

App configuration management
API request handling with proper authentication
Error handling and recovery
Multiple app support
Organization-level operations

Writing New Tests

If you add new functionality to the server, please also add corresponding tests. Tests should be placed in the tests directory and follow the naming convention test_*.py.

Troubleshooting

Common Issues

No App Configuration Available

If you see the error "No app configuration available", make sure you have:

Set up your .env file with the correct credentials, or
Added an app configuration using the add_app tool

API Key Errors

If you receive authentication errors, verify that:

Your API keys are correct
You're using the right key for the operation (REST API Key vs Organization API Key)
The key has the necessary permissions in OneSignal

Rate Limiting

OneSignal has rate limits for API requests. If you encounter rate limiting:

Reduce the frequency of your requests
Implement retry logic with exponential backoff

Getting Help

If you encounter issues not covered here:

Check the OneSignal API Documentation
Open an issue on the GitHub repository

Contributing

We welcome contributions to improve the OneSignal MCP server! Please see CONTRIBUTING.md for guidelines.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgements

OneSignal for their excellent notification service and API
The Weirdbrains team for supporting this project

How to Use

To use the onesignal-mcp, follow these steps:

Visit https://github.com/WeirdBrains/onesignal-mcphttps://github.com/WeirdB...
Follow the setup instructions to create an account (if required)
Connect the MCP server to your Claude Desktop application
Start using onesignal-mcp capabilities within your Claude conversations

Additional Information

Created

March 8, 2025

Company

WeirdBrains

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