Sites using Kadaster BAG API 
Dutch land registry API serving the national register of addresses and buildings.
Found via: StackScope Discovery (Indie) 1 · StackScope Wider Web 1
Kadaster BAG API has been detected on 2 launches since first appearing in August 2026. Most recent detection: VastgoedVink | Compliance dashboard voor vastgoedeigenaren, on August 23, 2026.
It's most commonly paired with Supabase, Google Fonts, and HSTS.
Share of new sites using Kadaster BAG API
Each dot is one launch day. Line is the 7-day rolling average. Chart starts at first detection.
Data API leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | ▲2 |
LocalLogic
|
0.07% | 26.19% |
| #2 | ▼1 |
The Movie Database
|
0.02% | 6.20% |
| #3 | ▲5 |
Daum Postcode
|
0.01% | 4.64% |
| #4 | ▼3 |
Frankfurter
|
0.01% | 3.54% |
| #5 | ▼1 |
ViaCEP
|
0.01% | 3.54% |
| … | ||||
| #423 |
Kadaster BAG API
Current page
|
<0.01% | 0.03% | |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Data API tool. All 979 in Data API →
Often used with
| Tool | Sites |
|---|---|
Supabase
|
2 |
Google Fonts
|
2 |
| HSTS | 2 |
| PDOK | 2 |
Google Workspace
|
1 |
Tools most often detected on the same sites as Kadaster BAG API.
Recent launches we can show
1 of the 2 sites using Kadaster BAG API are product launches we list individually. The other 1 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works
The StackScope API serves all 2 sites using Kadaster BAG API, filterable and exportable, from £15 a month.