> [!CAUTION]
> **Important:** Chrome will be removing support for Chrome Apps on all platforms. Chrome browser and the Chrome Web Store will continue to support extensions. [**Read the announcement**](https://blog.chromium.org/2020/08/changes-to-chrome-app-support-timeline.html) and learn more about [**migrating your app**](https://developer.chrome.com/apps/migration).

The `sockets` manifest property declares which permissions are available for the [sockets.udp](https://developer.chrome.com/docs/apps/reference/sockets/udp.md.txt),
[sockets.tcp](https://developer.chrome.com/docs/apps/reference/sockets/tcp.md.txt) and [sockets.tcpServer](https://developer.chrome.com/docs/apps/reference/sockets/tcpServer.md.txt) APIs.

## Sample manifest.json

```json
{
  "name": "My Sockets app",
  "sockets": {
    "udp": {
      // Permission for chrome.sockets.udp.send:
      // The application is allowed to send udp packets
      // to any host:port combination.
      "send": "*"
    },
    "tcp": {
      // Permission for chrome.sockets.tcp.connect:
      // The application is allowed to connect only to the
      // tcp server on 127.0.0.1 port 80.
      "connect": "127.0.0.1:80"
    },
    "tcpServer": {
      // Permission for chrome.sockets.tcpServer.listen:
      // The application is allowed to accept new client
      // connections on the local address at port 80.
      "listen": "127.0.0.1:80"
    }
  },
  ...
}
```

## Reference

- **`udp` (object)** - optional

  The `udp` manifest property declares which sockets.udp operations an app can issue.

  | Type | Attribute | Description |
  |---|---|---|
  | string or array of string | (optional) bind | <br /> The host:port pattern for `bind` operations. <br /> |
  | string or array of string | (optional) send | <br /> The host:port pattern for `send` operations. <br /> |
  | string or array of string | (optional) multicastMembership | <br /> The host:port pattern for `joinGroup` operations. <br /> |

- **`tcp` (object)** - optional

  The `tcp` manifest property declares which sockets.tcp operations an app can issue.

  | Type | Attribute | Description |
  |---|---|---|
  | string or array of string | (optional) connect | <br /> The host:port pattern for `connect` operations. <br /> |

- **`tcpServer` (object)** - optional

  The `tcpServer` manifest property declares which sockets.tcpServer operations an app can issue.

  | Type | Attribute | Description |
  |---|---|---|
  | string or array of string | (optional) listen | <br /> The host:port pattern for `listen` operations. <br /> |