: Search manuscripts

API: loc.gov:library-of-congress-api
Endpoint: /manuscripts/
Response format: application/json
Auth: none
Method: GET
Last Status: 200
Latency: 1264ms

Description

Search and browse manuscript materials from the Library of Congress collections.

Parameters (4)

c (integer, query, optional, default: 25)

Count/items per page

fo (string, query, optional, default: json)

Output format

Constraints: {'enum': ['json', 'yaml']}

q (string, query, optional)

Search term

sp (integer, query, optional)

Start page number

Examples (2)

Search manuscripts and mixed materials openapi-spec
curl 'https://www.loc.gov/manuscripts/?q=jefferson&fo=json'
import requests

resp = requests.get(
    "https://www.loc.gov/manuscripts/",
    params={
        'q': 'jefferson',
        'fo': 'json',
    },
)
data = resp.json()
import zingu_apis

api = zingu_apis.api("library-of-congress")
result = api.fetch("manuscripts/", q="jefferson", fo="json")

for item in result:
    print(item)
const resp = await fetch("https://www.loc.gov/manuscripts/?q=jefferson&fo=json");
const data = await resp.json();
Search manuscripts openapi-spec
curl 'https://www.loc.gov/manuscripts/?fo=json'
import requests

resp = requests.get(
    "https://www.loc.gov/manuscripts/",
    params={
        'fo': 'json',
    },
)
data = resp.json()
import zingu_apis

api = zingu_apis.api("library-of-congress")
result = api.fetch("manuscripts/", fo="json")

for item in result:
    print(item)
const resp = await fetch("https://www.loc.gov/manuscripts/?fo=json");
const data = await resp.json();

Probe History

Latency

Status Codes

TimeStatusLatencySize
2026-04-16 03:33:08.895305 200 1264ms
2026-04-16 01:25:50.023966 200 1477ms
2026-04-15 03:23:00.775251 ERR
2026-04-15 01:11:07.015236 ERR
2026-04-14 02:13:11.611754 200 1418ms
2026-04-14 01:59:20.177247 200 1432ms
2026-04-12 14:18:49.335024 ERR
2026-04-12 12:59:17.330075 200 1198ms
2026-04-10 01:50:44.809335 200 1989ms
2026-04-10 01:19:43.185839 200 801ms
2026-04-09 03:47:47.366244 200 1193ms
2026-04-09 01:03:22.697999 ERR
2026-04-08 07:42:27.318057 200 1108ms
2026-04-08 01:38:54.595103 200 1420ms
2026-04-07 01:17:11.016190 200 1586ms
2026-04-07 00:58:30.602881 200 1268ms
2026-04-06 05:02:52.692571 200 1192ms
2026-04-06 04:34:49.164573 200 1479ms
2026-04-05 02:10:37.774836 200 1547ms
2026-04-05 02:01:16.002924 200 1048ms
2026-04-04 02:54:28.521497 200 1582ms
2026-04-04 02:53:07.319753 200 1346ms
2026-04-03 13:10:46.398427 200 1105ms
2026-04-03 12:24:43.279650 200 1366ms
2026-03-30 03:04:34.750884 200 139ms
2026-03-30 02:19:17.380987 200 3239ms
2026-03-29 12:41:41.814658 200 1168ms
2026-03-29 12:40:10.563312 200 1603ms
2026-03-23 10:43:16.190515 200 1250ms
2026-03-23 09:34:06.922526 200 1292ms 0.6MB