Sites using Library of Congress
Open digital collections service publishing historical maps, images and documents.
Found via: StackScope Discovery (Indie) 2 · StackScope Wider Web 1
Library of Congress has been detected on 3 launches since first appearing in July 2026. Most recent detection: Academic Comeback — Prep for every AP® exam, 4 days ago.
Share of new sites using Library of Congress
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 |
LocalLogic
|
0.06% | 22.04% | |
| #2 |
The Movie Database
|
0.02% | 6.50% | |
| #3 |
Daum Postcode
|
0.01% | 4.23% | |
| #4 |
Frankfurter
|
0.01% | 3.84% | |
| #5 |
ViaCEP
|
0.01% | 3.65% | |
| … | ||||
| #252 | Library of Congress Current page | <0.01% | 0.06% | |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Data API tool. All 811 in Data API →
Recent launches we can show
2 of the 3 sites using Library of Congress 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 The other 1 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one.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
Dylumio | Personalized Reading & Writing App for Kids Ages 7-16
Education
The StackScope API serves all 3 sites using Library of Congress, filterable and exportable, from £15 a month.