# How to integrate Onesignal user auth MCP with Codex

```json
{
  "title": "How to integrate Onesignal user auth MCP with Codex",
  "toolkit": "Onesignal user auth",
  "toolkit_slug": "onesignal_user_auth",
  "framework": "Codex",
  "framework_slug": "codex",
  "url": "https://composio.dev/toolkits/onesignal_user_auth/framework/codex",
  "markdown_url": "https://composio.dev/toolkits/onesignal_user_auth/framework/codex.md",
  "updated_at": "2026-05-12T10:20:42.149Z"
}
```

## Introduction

Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With Onesignal user auth MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or the app, whichever you prefer.

## Also integrate Onesignal user auth with

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

## TL;DR

### Why use Composio?
Apart from a managed and hosted MCP server, you will get:
- CodeAct: A dedicated workbench that allows GPT to write its code to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling.
- Large tool responses: Handle them to minimise context rot.
- Dynamic just-in-time access to 20,000 tools across 1000+ other Apps for cross-app workflows. It loads the tools you need, so GPTs aren't overwhelmed by tools you don't need.

## Connect Onesignal user auth to Codex

### How to install Onesignal user auth MCP in Codex
### Run the setup command
Run this command in your terminal to add the Composio MCP server to Codex.

```bash
codex mcp add composio --url https://connect.composio.dev/mcp
```

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

The Onesignal user auth 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 user auth account. It provides structured and secure access to your Onesignal workspace, so your agent can perform actions like managing device tags, updating player records, inspecting app segments, and retrieving device information on your behalf.
- Device tag management: Assign or update custom tags on OneSignal devices to enable powerful audience segmentation and personalized messaging.
- Edit device/player attributes: Update details or attributes for any registered device (player) in your OneSignal app using your agent.
- Segment inspection and listing: Retrieve details for specific segments or list all segments in your app to optimize and analyze your audience targeting strategies.
- Device and app information retrieval: Look up detailed information about individual devices or your entire OneSignal app configuration as needed.
- View device tags and metadata: Fetch all key/value tags assigned to a particular player for deeper insight into user attributes and behaviors.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `ONESIGNAL_USER_AUTH_CREATE_USER` | Create or Update OneSignal User | Tool to create a new user or modify the subscriptions associated with an existing user. Use when you need to register a user with OneSignal or update their subscriptions. |
| `ONESIGNAL_USER_AUTH_DELETE_ALIAS` | Delete User Alias | Tool to remove an alias from a OneSignal user. Use when you need to delete a specific alias identifier from a user while preserving other aliases. The user is identified by one alias (alias_label/alias_id) and a different alias (alias_label_to_delete) is removed. |
| `ONESIGNAL_USER_AUTH_EDIT_DEVICE` | Edit OneSignal Device | Tool to update an existing OneSignal device (player) record. Use when you have the player_id and need to modify device attributes. |
| `ONESIGNAL_USER_AUTH_ONESIGNAL_VIEW_SEGMENT` | View OneSignal Segment | Tool to retrieve the subscriber count for a specific OneSignal segment. Use when you need to know how many subscribers are in a segment. |
| `ONESIGNAL_USER_AUTH_UPDATE_SUBSCRIPTION_BY_TOKEN` | Update Subscription By Token | Tool to update properties on an existing subscription using its token. Use when you need to enable or disable subscription status when managing outside of the OneSignal SDK. |
| `ONESIGNAL_USER_AUTH_VIEW_APP` | View App | Tool to retrieve details for a specific OneSignal app. Use after authenticating to inspect app settings. |
| `ONESIGNAL_USER_AUTH_VIEW_BROADCASTS` | View Broadcasts | Tool to view inbox broadcasts for a OneSignal app. Returns broadcasts in descending order of creation. Use when retrieving in-app messages or inbox content for an app. |
| `ONESIGNAL_USER_AUTH_VIEW_DEVICE` | View OneSignal Device | Tool to retrieve details for a specific device/player. Use when you have a player_id and optional app_id. |
| `ONESIGNAL_USER_AUTH_VIEW_OUTCOMES` | View Outcomes | Tool to view all outcomes associated with a OneSignal app. Use to retrieve outcome metrics filtered by time range, platforms, and attribution type. |
| `ONESIGNAL_USER_AUTH_VIEW_SEGMENTS` | View Segments | Tool to list all segments for an app. Use after obtaining the app_id to retrieve a paginated list of segments. |
| `ONESIGNAL_USER_AUTH_VIEW_USER` | View OneSignal User | Tool to retrieve user details by alias label and ID. Use when you need to fetch user data including tags, subscriptions, and identity information. |
| `ONESIGNAL_USER_AUTH_VIEW_USER_UNREAD_MESSAGE_COUNT` | View User Unread Message Count | Tool to retrieve the unread message count for a specific user. Use when you need to check how many unread inbox messages a user has. |

## Supported Triggers

None listed.

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

The Onesignal user auth MCP server provides comprehensive access to Onesignal user auth operations through Composio. Once connected, you can perform all major Onesignal user auth actions directly from Codex using natural language commands.

## Complete Code

None listed.

## Conclusion

### Conclusion
You've successfully integrated Onesignal user auth with Codex using Composio's MCP server. Now you can interact with Onesignal user auth directly from your terminal, VS Code, or the Codex App using natural language commands.
Key benefits of this setup:
- Seamless integration across CLI, VS Code, and standalone app
- Natural language commands for Onesignal user auth operations
- Managed authentication through Composio
- Access to 20,000+ tools across 1000+ apps for cross-app workflows
- CodeAct workbench for complex tool chaining
Next steps:
- Try asking Codex to perform various Onesignal user auth operations
- Explore cross-app workflows by connecting more toolkits
- Build automation scripts that leverage Codex's AI capabilities

## How to build Onesignal user auth MCP Agent with another framework

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

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- [ClickSend](https://composio.dev/toolkits/clicksend) - ClickSend is a cloud-based SMS and email marketing platform for businesses. It streamlines communication by enabling quick message delivery and contact management.
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- [Curated](https://composio.dev/toolkits/curated) - Curated is a platform for collecting, curating, and publishing newsletters. It streamlines content aggregation and distribution for creators and teams.
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## Frequently Asked Questions

### What are the differences in Tool Router MCP and Onesignal user auth MCP?

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

### Can I use Tool Router MCP with Codex?

Yes, you can. Codex 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 user auth tools.

### Can I manage the permissions and scopes for Onesignal user auth while using Tool Router?

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

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