{"data":{"slug":"loc-chronicling-america","name":"Library of Congress: Chronicling America","homepage":"https://www.loc.gov/collections/chronicling-america/","record_types":["newspapers"],"places":["us"],"years":null,"access_method":"api","api_docs_url":"https://www.loc.gov/apis/","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 automated programs to send no more than 10 requests per minute in total, and robots.txt sets a crawl delay of 5 seconds.","key_required":false,"key_env":null,"review":"verified","verified_at":"2026-11-01","evidence":["https://www.loc.gov/apis/json-and-yaml/working-within-limits/","https://www.loc.gov/apis/additional-apis/chronicling-america-api/","https://www.loc.gov/apis/","https://www.loc.gov/legal/","https://www.loc.gov/robots.txt"],"notes":"Historic US newspapers. Since 2025 the collection is reachable only through the loc.gov API; the old Chronicling America API is retired. No key is needed. The Library says limits can drop under heavy traffic and callers may get a 429 or a CAPTCHA page below the stated rate, so pause when either appears. The Library does not own the rights to most items; check copyright before reuse.","status":"live","key_configured":null,"health":{"status":"live","checked_at":"2026-11-01T21:41:36.098Z","http_status":200,"latency_ms":115,"probe_url":"https://www.loc.gov/apis/","reason":null},"links":{"self":"https://api.lineage.rexstjohn.com/v1/sources/loc-chronicling-america","page":"https://api.lineage.rexstjohn.com/sources/loc-chronicling-america","llms_txt":"https://api.lineage.rexstjohn.com/sources/loc-chronicling-america/llms.txt"}},"checked_at":"2026-11-01T21:41:36.098Z"}