# Server mode

Moto has a stand-alone server mode. This allows you to utilize the backend structure of Moto even if you don’t use Python.

It uses flask, which isn’t a default dependency. You can install the server ‘extra’ package with:

    pip install moto[server]

You can then start it running a service:

    $ moto_server ec2

You can also pass the port:

    $ moto_server ec2 -p3000
     * Running on http://127.0.0.1:3000/

If you want to be able to use the server externally you can pass an IP address to bind to as a hostname or allow any of your external interfaces with 0.0.0.0:

    $ moto_server ec2 -H 0.0.0.0
     * Running on http://0.0.0.0:5000/

Please be aware this might allow other network users to access your server.

Then go to localhost to see a list of running instances (it will be empty since you haven’t added any yet).

If you want to use boto3 with this, you can pass an endpoint_url to the resource

    boto3.resource(
        service_name='s3',
        region_name='us-west-1',
        endpoint_url='http://localhost:5000',
    )

## Other languages

You don’t need to use Python to use Moto; it can be used with any language. Here are some examples to run it with other languages:

- Java
- Ruby
- Javascript