# Add external layer

External layers allow you to load data from non Ellipsis Drive sources in the Ellipsis Drive viewer. This is done by defining an alternative endpoint from which to retrieve the data as well as the protocol used to load the external data. Note that because the data is hosted externally Ellipsis Drive has no control over the existence, performance or maintenance of this external data set, pros and cons of using this endpoint should be evaluated accordingly.

| **Description** | Adds an external layer to your account. |
| --------------- | --------------------------------------- |
| **Endpoint**    | `/account/externalLayer`                |
| **Method**      | POST                                    |

### Access Level Rules

| **Access Level** | Account holder |
| ---------------- | -------------- |

### Processing Units

| **Processing units** | 0 |
| -------------------- | - |

### Parameters

<table><thead><tr><th>Name</th><th width="362">Description</th><th>Required</th><th>Default</th></tr></thead><tbody><tr><td><code>name</code></td><td>The name of the external layer.</td><td>true</td><td></td></tr><tr><td><code>url</code></td><td>The url of the external layer.</td><td>true</td><td></td></tr><tr><td><code>type</code></td><td>A string describing the type of the external layer. Must be one of "wfs", "wms", "vectorTiles", or "wmts".</td><td>true</td><td></td></tr><tr><td><code>layer</code></td><td>The name of the layer at the external source that should be used for the external layer within Ellipsis Drive.</td><td>true</td><td></td></tr><tr><td><code>epsg</code></td><td>Integer representing the coordinate reference system(crs) of the external layer.</td><td>true</td><td></td></tr><tr><td><code>zoom</code></td><td>Integer indicating the maximum available zoomlevel.</td><td>Only required for types "wmts" and "vectorTiles".</td><td>Default null.</td></tr><tr><td><code>tileMatrixSet</code></td><td>String containing the tileMatrixSet of a "wmts".</td><td>Only required for type "wmts".</td><td>Default null.</td></tr></tbody></table>