```{eval-rst}
.. meta::
  :title: ZeroMQ (ZMQ) RPCs
  :description: A list of remote procedure calls in Dash Core used to check ZeroMQ (ZMQ) settings. 
```

# ZeroMQ (ZMQ) RPCs

## GetZmqNotifications

> 👍
>
> Added in Dash Core 0.17.0

The [`getzmqnotifications` RPC](../api/remote-procedure-calls-blockchain.md#getblockchaininfo) returns information about the active ZeroMQ notifications.

*Parameters: none*

*Result---A JSON array of objects providing information about the enabled ZMQ notifications*

Name | Type | Presence | Description
--- | --- | --- | ---
`result` | array | Required<br>(exactly 1) | Array of objects containing Information about the enabled ZMQ notifications
→<br>Notification | object | Required<br>(0 or more) | Information about a ZMQ notification
→ →<br>`type` | string | Required<br>(exactly 1) | Type of notification
→ →<br>`address` | string | Required<br>(exactly 1) | Address of the publisher
→ →<br>`hwm` | number | Required<br>(exactly 1) | Outbound message high water mark

*Example from Dash Core 18.0.0*

``` bash
dash-cli -testnet getzmqnotifications
```

Result:

``` json
[
  {
    "type": "pubhashblock",
    "address": "tcp://0.0.0.0:20009",
    "hwm": 1000
  },
  {
    "type": "pubhashchainlock",
    "address": "tcp://0.0.0.0:20009",
    "hwm": 1000
  },
  {
    "type": "pubhashgovernanceobject",
    "address": "tcp://0.0.0.0:20009",
    "hwm": 1000
  }
]
```

*See also: none*