Download [leaflet-providers.js](https://raw.githubusercontent.com/leaflet-extras/leaflet-providers/master/leaflet-providers.js) and include it in your page after including Leaflet, e.g.:
Leaflet-providers [providers](#providers) are refered to with a `provider[.<variant>]`-string. Let's say you want to add the nice [Watercolor](http://maps.stamen.com/#watercolor/) style from Stamen to your map, you pass `Stamen.Watercolor` to the `L.tileLayer.provider`-constructor, which will return a [L.TileLayer](http://leafletjs.com/reference.html#tilelayer) instance for Stamens Watercolor tile layer.
Leaflet-providers provides tile layers from different providers, including *OpenStreetMap*, *Stamen*, *Esri* and *OpenWeatherMap*. The full listing of free to use layers can be [previewed](http://leaflet-extras.github.io/leaflet-providers/preview/index.html). The page will show you the name to use with `leaflet-providers.js` and the code to use it without dependencies.
In order to use HERE layers, you must [register](http://developer.here.com/). Once registered, you can create an `app_id` and `app_code` which you have to pass to `L.tileLayer.provider` in the options:
In order to use Mapbox maps, you must [register](https://tiles.mapbox.com/signup). You can get map_ID (i.e mapbox.satellite) and ACCESS_TOKEN from [Mapbox projects](https://www.mapbox.com/projects):
In order to use Thunderforest maps, you must [register](https://thunderforest.com/pricing/). Once registered, you have an `api_key` which you have to pass to `L.tileLayer.provider` in the options:
In order to use ArcGIS maps, you must [register](https://developers.arcgis.com/en/sign-up/) and abide by the [terms of service](https://developers.arcgis.com/en/terms/). No special syntax is required.
In order to use Geoportail France resources, you need to obtain an [api key]( http://professionnels.ign.fr/ign/contrats/) that allows you to access the [resources](https://geoservices.ign.fr/documentation/donnees-ressources-wmts.html#ressources-servies-en-wmts-en-projection-web-mercator) you need. Pass this api key and the ID of the resource to display to `L.tileLayer.provider` in the options:
```JavaScript
L.tileLayer.provider('GeoportailFrance', {
variant: '<insert resource ID here>',
apikey: '<insert api key here>'
}).addTo(map);
```
Please note that a public api key (`choisirgeoportail`) is used by default and comes with no guarantee.
4 aliases are also provided for common Geoportail resources : `GeoportailFrance`, `GeoportailFrance.orthos`, `GeoportailFrance.ignMaps` and `GeoportailFrance.parcels` (See index.html demo).
