{"data":{"slug":"loc-gov","name":"Library of Congress: manuscripts, prints and photographs (loc.gov API)","homepage":"https://www.loc.gov/","record_types":["digitized_records","cultural_heritage"],"places":["us"],"years":null,"access_method":"api","api_docs_url":"https://www.loc.gov/apis/json-and-yaml/","terms_url":"https://www.loc.gov/legal/","robots_ok":true,"rate_limit":"loc.gov JSON/YAML API: 20 requests per minute, with a 1 hour block if exceeded; the legal page asks for no more than 10 a minute in total, and robots.txt sets a crawl delay of 5 seconds. Shared with loc-chronicling-america.","key_required":false,"key_env":null,"review":"verified","verified_at":"2026-11-02","evidence":["https://www.loc.gov/apis/json-and-yaml/","https://www.loc.gov/apis/json-and-yaml/working-within-limits/","https://www.loc.gov/legal/","https://www.loc.gov/robots.txt"],"notes":"The same loc.gov JSON API as Chronicling America, on the manuscripts and prints and photographs formats: letters, orders, maps and prints of the war. robots.txt disallows /search and /pictures/search for crawlers; Lineage reads the API with fo=json, never those pages. Each item carries its own rights advisory: an image is used only with its rights statement recorded, and is captioned as context, never as a portrait of the person researched.","tags":{"record_type":["letter","image"],"era":"1775-1783","places":[]},"status":"live","key_configured":null,"health":{"status":"live","checked_at":"2026-11-03T02:29:41.319Z","http_status":200,"latency_ms":119,"probe_url":"https://www.loc.gov/apis/json-and-yaml/","reason":null},"links":{"self":"https://api.lineage.rexstjohn.com/v1/sources/loc-gov","page":"https://api.lineage.rexstjohn.com/sources/loc-gov","llms_txt":"https://api.lineage.rexstjohn.com/sources/loc-gov/llms.txt"}},"checked_at":"2026-11-03T02:29:41.319Z"}