Connect ArcGIS to Topolab

Requires: ArcGIS Pro and an API key; OGC access is a Team / Enterprise plan capability. A dedicated Topolab toolbox is in preview; the OGC connection below is generally available.

1. Add the OGC API - Features server

In the Catalog pane, right-click Servers and choose New OGC API Server (under New Server in some versions). Set the server URL to the OGC base, then add a custom HTTP header named X-API-Key with your key as the value — ArcGIS sends this header on every request, which is how Topolab authenticates the connection. Finish to save.

https://api.topolab.nl/v1/ogc

The landing page is anonymous, but listing collections requires the key. You can confirm the connection outside ArcGIS first:

curl -H "X-API-Key: tlb_prod_..." \
  "https://api.topolab.nl/v1/ogc/collections"

2. Add a collection as a feature layer

Expand the new server connection in the Catalog pane. Each collection is a Topolab dataset, addressed by its table name such as nl-domino-poi. Right-click a collection and choose Add To Current Map, or drag it into the map, to consume it as a feature layer.

Reprojection

Geometry arrives in WGS84 (EPSG:4326); ArcGIS reprojects on the fly to the map's coordinate system. Use Export Features if you need the data stored in a projected CRS such as RD New (EPSG:28992). A dedicated toolbox with sign-in, dataset search, and credit-aware downloads is in preview — until it ships, use this OGC connection.