Montserrat / 400
{
  "copyright": {
    "en": "Copyright 2011 The Montserrat Project Authors (https://github.com/JulietaUla/Montserrat)"
  },
  "licenseURL": {
    "en": "https://openfontlicense.org"
  }
}

Montserrat / 600
{
  "copyright": {
    "en": "Copyright 2011 The Montserrat Project Authors (https://github.com/JulietaUla/Montserrat)"
  },
  "licenseURL": {
    "en": "https://openfontlicense.org"
  }
}

Montserrat / 700
{
  "copyright": {
    "en": "Copyright 2011 The Montserrat Project Authors (https://github.com/JulietaUla/Montserrat)"
  },
  "licenseURL": {
    "en": "https://openfontlicense.org"
  }
}