gns3-server/docs/api/examples/controller_get_version.txt

curl -i -X GET 'http://localhost:3080/v2/version'

GET /v2/version HTTP/1.1



HTTP/1.1 200
Connection: close
Content-Length: 49
Content-Type: application/json
Date: Wed, 08 Jan 2020 02:29:21 GMT
Server: Python/3.6 GNS3/2.2.4dev1
X-Route: /v2/version

{
    "local": true,
    "version": "2.2.4dev1"
}