X (Twitter)LinkedInGitHubDiscordYouTube

How to connect Ntfy to Claude

Connect Claude Web, Desktop and Cowork to Ntfy MCP. Send push notification for build failures, notify me of high-priority alerts, and more using natural language, with authentication handled for you.

Get started for freeGet a demo
Ntfy logoNtfy
Api KeyBasic

Ntfy is a notification service to send push messages to phones or desktops. Instantly deliver alerts and updates to users, devices, or teams.

22 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Ntfy account to Claude via Composio Connect, enabling it to send push notification for build failures, notify me of high-priority alerts, broadcast message to all devices, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Ntfy with

Claude CodeCursorChatGPTAntigravityOpenAI Agents SDKClaude Agent SDKCodexGrok BuildVS CodeOpenCodeOpenClawHermesAtomic AgentPiDeepSeek HarnessGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAIPydantic AIAutoGen

Connecting Ntfy to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your Ntfy account

Back in Claude, ask it to connect to Ntfy or give it any Ntfy-related task.

For example, ask Claude to:

  • "Send push notification for build failures"
  • "Notify me of high-priority alerts"
  • "Broadcast message to all devices"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Ntfy account is ready to use.

What is the Ntfy Claude Connector, and what's possible with it?

The Ntfy MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Ntfy account. It provides structured and secure access so your agent can perform Ntfy operations on your behalf.

Troubleshooting

1. Why does Claude not use the Composio connector for Ntfy?

The connector can show as connected, but Claude must use it in each Ntfy conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Ntfy again.

2. Why does Claude show an MCP server error before Ntfy connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Ntfy.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Ntfy.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Ntfy authorization link not work?

The Composio connector is one server. Your Ntfy account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Ntfy connection.
  • Composio creates a fresh Ntfy authorization link.
  • Open that link in your browser and finish the Ntfy sign-in.

4. Why do Ntfy actions fail after they worked before?

The Ntfy connection can expire or lose permission.

  • Ask Claude to inspect the Ntfy connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Ntfy account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Ntfy.
  • If the action still fails with a permission error, check that the connected account has that permission in Ntfy itself.

5. How do I switch to a different Ntfy account?

Claude can manage the Ntfy connection for you.

  • Ask Claude to disconnect or delete the current Ntfy account.
  • Ask Claude to connect Ntfy again.
  • Open the new Composio authorization link for Ntfy.
  • Sign in with the other Ntfy account in the browser.
  • After the account connects, ask Claude to retry the Ntfy task.

6. Why is my Ntfy connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Ntfy connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Ntfy tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Ntfy.
TOOLS

Supported Tools

Every Ntfy action and event your agent gets out of the box.

Create NTFY Account

Tool to register a new user account on ntfy.

Create Web Push Subscription

Tool to register a web push subscription for browser notifications.

Delete Web Push Subscription

Tool to unregister a web push subscription from the ntfy server.

Fetch Cached Messages

Tool to fetch cached messages from a ntfy topic.

Fetch Latest Message from Topic

Tool to fetch the most recent message from a topic's cache.

Fetch Scheduled Messages

Tool to fetch messages scheduled for later delivery from a topic.

Get Account Information

Tool to retrieve account data for authenticated user or anonymous user.

Get Server Statistics

Tool to retrieve server statistics including message counts and publishing rates.

Get Service Tiers

Tool to list all available ntfy service tiers with their limits and features.

Get File Attachment Metadata

Tool to get file attachment metadata from a message without downloading the file content.

Check NTFY Service Health

Tool to check the health status of the ntfy service.

Poll Messages from Topic

Tool to poll for messages from an ntfy topic without maintaining a long-standing connection.

Publish Message as JSON to NTFY

Tool to publish messages as JSON to ntfy.

Publish Message to Topic

Tool to publish a message to a ntfy topic.

Publish Message to Topic (PUT)

Tool to publish a message to a topic using PUT method.

Publish Message via GET

Tool to publish messages to ntfy via GET request with URL parameters.

Send Message via Webhook

Tool to send messages via webhook endpoint using simple GET request.

Subscribe to NTFY Topic with Filters

Tool to subscribe to a ntfy topic with filters based on message fields (id, message, title, priority, tags).

Subscribe to Topic (JSON Stream)

Tool to subscribe to a ntfy topic and receive messages as JSON stream.

Subscribe to Multiple NTFY Topics

Tool to subscribe to multiple ntfy topics simultaneously using comma-separated topic list.

Subscribe to Topic (Raw Stream)

Tool to subscribe to a topic and receive message bodies as raw text stream.

Trigger NTFY Webhook

Tool to trigger a webhook to publish a message to an ntfy topic via simple HTTP GET request.

FRAMEWORKS

How to build Ntfy MCP Agent with another framework

Claude Code logo

Claude Code

Use Ntfy MCP with Claude Code

Cursor logo

Cursor

Use Ntfy MCP with Cursor

ChatGPT logo

ChatGPT

Use Ntfy MCP with ChatGPT

Antigravity logo

Antigravity

Use Ntfy MCP with Antigravity

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Ntfy MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Ntfy MCP with Claude Agent SDK

Codex logo

Codex

Use Ntfy MCP with Codex

Grok Build logo

Grok Build

Use Ntfy MCP with Grok Build

VS Code logo

VS Code

Use Ntfy MCP with VS Code

OpenCode logo

OpenCode

Use Ntfy MCP with OpenCode

OpenClaw logo

OpenClaw

Use Ntfy MCP with OpenClaw

Hermes logo

Hermes

Use Ntfy MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Ntfy MCP with Atomic Agent

Pi logo

Pi

Use Ntfy MCP with Pi

DeepSeek Harness logo

DeepSeek Harness

Use Ntfy MCP with DeepSeek Harness

Google ADK logo

Google ADK

Use Ntfy MCP with Google ADK

LangChain logo

LangChain

Use Ntfy MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Ntfy MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Ntfy MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Ntfy MCP with LlamaIndex

CrewAI logo

CrewAI

Use Ntfy MCP with CrewAI

Pydantic AI logo

Pydantic AI

Use Ntfy MCP with Pydantic AI

AutoGen logo

AutoGen

Use Ntfy MCP with AutoGen

FAQ

Frequently asked questions

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

Yes, you can. Claude Cowork 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 Ntfy tools.

Yes, absolutely. You can configure which Ntfy 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.

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 Ntfy data and credentials are handled as safely as possible.

Start with Ntfy.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Ntfy tool your agent needs.Free to start.

Start building