GET /collections/
loc.gov:library-of-congress-api
Summary: List all digital collections
Operation ID: listCollections
Auth: none
Operation ID: listCollections
Auth: none
Description
Returns a list of all digital collections available at the Library of Congress.
Parameters (3)
c
(integer, query, optional, default: 25)
Count/items per page
fo
(string, query, optional, default: json)
Output format
Constraints: {'enum': ['json', 'yaml']}
sp
(integer, query, optional)
Start page number
Examples (2)
| Title | Type | URL | Action |
|---|---|---|---|
| List digital collections | openapi-spec |
https://www.loc.gov/collections/?fo=json |
|
| List all digital collections | openapi-spec |
https://www.loc.gov/collections/?fo=json&c=25 |
Probe History
Status Codes
| Time | Status | Latency | Size |
|---|---|---|---|
| 2026-03-23 10:26:07.832722 | 200 | 1013ms | 0.9MB |
| 2026-03-23 10:18:36.444226 | 200 | 105ms | 0.5MB |
Response Changes
| When | Old | New |
|---|---|---|
| 2026-03-23 10:26:07.832722 | e9e26791b0c9 |
1fee568666d5 |