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Ntfy for AI agents

ntfy is a simple push notification service that sends alerts to phones and desktops over PUT or POST requests. Developers and self-hosters use it to get notified from scripts, servers, and monitoring tools. Connect it once through Arc0, and your agent, or Claude, ChatGPT and Cursor, can use it through one MCP endpoint, limited to what each user approved.

Connect NtfySee the 12 actions ↓
CommunicationAPI keyMCP + RESTntfy.sh
AUDIT LOG · NTFYPOLICY: acme-support
09:41:07 · claude · u_8f2read
ntfy.get_stats
Get Server Statistics✓ allowed · 212ms
09:41:08 · claude · u_8f2read
ntfy.get_tiers
Get Service Tiers✓ allowed · 164ms
09:41:09 · claude · u_8f2write
ntfy.create_account
Create NTFY Account✓ approved · approved by user
09:41:12 · claude · u_8f2destructive
ntfy.delete_webpush_subscription
Delete Web Push Subscription✕ blocked · policy: deny
EVERY NTFY CALL, ON THE RECORD
01 · USE CASES

What agents do in Ntfy.

01

Publish an alert to a topic

Send a push notification to a subscribed topic when a job finishes or a threshold is crossed.

02

Check server health before alerting

Confirm the ntfy service is healthy before relying on it to deliver a time-sensitive notification.

03

Review scheduled messages

List messages scheduled for future delivery to confirm nothing duplicate or stale is queued.

02 · ACTIONS

12 Ntfy actions, graded by risk.

Every Ntfy action is tagged read, write or destructive, so one policy covers the whole app and new actions inherit the right default.

read

4

Look things up. Allowed by default.

  • ntfy.get_stats
    Get Server Statistics
  • ntfy.get_tiers
    Get Service Tiers
  • ntfy.get_account
    Get Account Information
  • ntfy.fetch_scheduled_messages
    Fetch Scheduled Messages

write

7

Create and change things. Allow, or ask the user first.

  • ntfy.create_account
    Create NTFY Account
  • ntfy.create_webpush_subscription
    Create Web Push Subscription
  • ntfy.head_file
    Get File Attachment Metadata
  • ntfy.health_check
    Check NTFY Service Health
  • ntfy.publish_message
    Publish Message to Topic
  • ntfy.publish_via_get
    Publish Message via GET
  • ntfy.subscribe_raw_stream
    Subscribe to Topic (Raw Stream)

destructive

1

Delete, cancel or archive. Ask first, or deny outright.

  • ntfy.delete_webpush_subscription
    Delete Web Push Subscription
03 · HOW IT WORKS

Ntfy in three steps.

  1. 01Your users connect NtfyThey add their Ntfy api key on Arc0 Connect, under your brand. It goes straight into the vault.
  2. 02You set the rulesReads run, writes like “create NTFY Account” can wait for the user, and “delete Web Push Subscription” can be denied outright.
  3. 03Any agent can actYour agent calls Ntfy through the Arc0 SDK or MCP, and so can Claude, ChatGPT and Cursor. Every call lands on the audit log.
POLICY.TS
await arc0.policies.set('ntfy', {
  read: 'allow',
  write: 'ask',        // create_account
  destructive: 'deny',  // delete_webpush_subscription
})

# Claude Code: the same connection, one URL
$ claude mcp add --transport http arc0 \
    https://mcp.arc0.ai/u/u_8f2
04 · AUTH AND DATA

How Ntfy connects.

Users add their Ntfy api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.

The same Ntfy connection serves your agent over MCP and your own backend over REST and the proxy, so a user connects once. How Arc0 handles credentials →

AUTH
API key · Username and password
CREDENTIALS
Per-tenant encrypted vault
MODEL SEES
Results only, never credentials
AUDIT LOG
Every call, on every plan
05 · WORKS WITH

Use Ntfy from any agent.

Claude
ChatGPT
Cursor
Codex
VS Code
OpenAI Agents SDK
Claude Agent SDK
Vercel AI SDK
Mastra
LangGraph
06 · RELATED

More communication apps.

Slack168 actionsMicrosoft Teams174 actionsDiscord28 actionsSlackbot101 actions2chat5 actionsAimTell15 actionsAndroid Texter11 actionsDialpad192 actions
ALL COMMUNICATION APPS →
07 · FAQ

Ntfy and Arc0, answered.

Q01

Can I use Ntfy with Claude, ChatGPT or Cursor?

Yes. Connect Ntfy to Arc0 once, then add your Arc0 MCP URL to Claude, ChatGPT, Cursor, Claude Code or any other remote-MCP client. Each assistant only gets the Ntfy actions you allow.

Q02

How do users connect Ntfy?

Users add their Ntfy api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.

Q03

Which Ntfy actions can my agent take?

12 in total: 4 read, 7 write and 1 destructive, such as “create NTFY Account”. Your policies decide which of them each agent may call.

Q04

Can I stop my agent from deleting things in Ntfy?

Yes. Actions like “delete Web Push Subscription” are graded destructive. Set destructive actions to deny, or to ask so the user approves each one, and blocked calls still show up on the audit log.

Q05

Can my own backend call Ntfy too?

Yes. The same Ntfy connection is available over REST and through the Arc0 proxy, so your product and your agent share one connection per user.

Get started

Plug Ntfy into your agent.

Your users connect Ntfy once, under your brand. Your agent gets 12 actions behind your policies, with every call on the record.

Connect NtfyBrowse all apps →

Free to build · MCP + REST · Audit log on every plan