Can I target specific users instead of sending to everyone?

Yes! Use the `create_notification` tool and provide a list of `include_player_ids`. This ensures the notification is only delivered to the specific devices you've identified.

How can I check if a scheduled notification was actually sent?

You can use the `get_notification` tool with the Notification ID. It will return real-time delivery metrics, including the number of successful deliveries and current status.

Is it possible to manage multiple OneSignal apps?

Yes. While the core operations use the primary App ID provided in credentials, you can use `list_apps` (requires User Auth Key) to see all your applications and their respective IDs.

OneSignal MCP Server for LangChain 10 tools — connect in under 2 minutes

Name: OneSignal
Availability: InStock
Author: Vinkius

python.langchain.com/docs/integrations/tools/mcp

Built by Vinkius GDPR 10 Tools Framework

LangChain is the leading Python framework for composable LLM applications. Connect OneSignal through Vinkius and LangChain agents can call every tool natively. combine them with retrievers, memory, and output parsers for sophisticated AI pipelines.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

python

import asyncio
from langchain_mcp_adapters.client import MultiServerMCPClient
from langchain_openai import ChatOpenAI
from langgraph.prebuilt import create_react_agent

async def main():
    # Your Vinkius token. get it at cloud.vinkius.com
    async with MultiServerMCPClient({
        "onesignal": {
            "transport": "streamable_http",
            "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
        }
    }) as client:
        tools = client.get_tools()
        agent = create_react_agent(
            ChatOpenAI(model="gpt-4o"),
            tools,
        )
        response = await agent.ainvoke({
            "messages": [{
                "role": "user",
                "content": "Using OneSignal, show me what tools are available.",
            }]
        })
        print(response["messages"][-1].content)

asyncio.run(main())

Fully ManagedVinkius Servers

60%Token savings

High SecurityEnterprise-grade

IAMAccess control

EU AI ActCompliant

DLPData protection

V8 IsolateSandboxed

Ed25519Audit chain

<40msKill switch

Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About OneSignal MCP Server

Connect your OneSignal account to any AI agent and take full control of your customer engagement workflows through natural conversation.

LangChain's ecosystem of 500+ components combines seamlessly with OneSignal through native MCP adapters. Connect 10 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.

What you can do

Notifications Management — Send, schedule, and cancel push notifications across mobile and web platforms.
Audience Targeting — Target specific segments or individual player IDs to ensure the right message reaches the right user.
Delivery Analytics — Fetch detailed reports and metrics for any notification to understand your engagement levels.
Device Management — List, inspect, and manage registered devices (players) within your OneSignal applications.
App Overview — List all your OneSignal apps and configurations to maintain a bird's-eye view of your notification infrastructure.

The OneSignal MCP Server exposes 10 tools through the Vinkius. Connect it to LangChain in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect OneSignal to LangChain via MCP

Follow these steps to integrate the OneSignal MCP Server with LangChain.

Install dependencies

Run pip install langchain langchain-mcp-adapters langgraph langchain-openai

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Run the agent

Save the code and run python agent.py

Explore tools

The agent discovers 10 tools from OneSignal via MCP

Why Use LangChain with the OneSignal MCP Server

LangChain provides unique advantages when paired with OneSignal through the Model Context Protocol.

The largest ecosystem of integrations, chains, and agents. combine OneSignal MCP tools with 500+ LangChain components

Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step

LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging

Memory and conversation persistence let agents maintain context across OneSignal queries for multi-turn workflows

OneSignal + LangChain Use Cases

Practical scenarios where LangChain combined with the OneSignal MCP Server delivers measurable value.

RAG with live data: combine OneSignal tool results with vector store retrievals for answers grounded in both real-time and historical data

Autonomous research agents: LangChain agents query OneSignal, synthesize findings, and generate comprehensive research reports

Multi-tool orchestration: chain OneSignal tools with web scrapers, databases, and calculators in a single agent run

Production monitoring: use LangSmith to trace every OneSignal tool call, measure latency, and optimize your agent's performance

OneSignal MCP Tools for LangChain (10)

These 10 tools become available when you connect OneSignal to LangChain via MCP:

cancel_notification

Cancel a scheduled notification

create_notification

Send a OneSignal notification

delete_player

Delete a registered device

get_app

Requires User Auth Key. Get details for a specific OneSignal app

get_notification

Get specific notification status

get_outcomes

Get outcome data for the app

get_player

Get specific player details

list_apps

Requires User Auth Key. List all OneSignal apps

list_notifications

List notifications sent for the app

list_players

List registered devices (players)

Example Prompts for OneSignal in LangChain

Ready-to-use prompts you can give your LangChain agent to start working with OneSignal immediately.

"Send a push notification to all subscribed users saying 'Flash Sale: 50% off today only!'"

"Check the delivery status of notification 550e8400-e29b-41d4-a716-446655440000."

"List the last 5 registered devices for our app."

Troubleshooting OneSignal MCP Server with LangChain

Common issues when connecting OneSignal to LangChain through the Vinkius, and how to resolve them.

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

OneSignal + LangChain FAQ

Common questions about integrating OneSignal MCP Server with LangChain.

How does LangChain connect to MCP servers?

Use langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.

Which LangChain agent types work with MCP?

All agent types including ReAct, OpenAI Functions, and custom agents work with MCP tools. The tools appear as standard LangChain tools after the adapter wraps them.