x402 · USDC on Base · 30M+ Pages · Any Language

ChronicaPulse

Historical newspaper archive intelligence for genealogists, historians, journalists, and researchers. From the Library of Congress to global archives.

Primary Data Source — Free, No API Key
Library of Congress Chronicling America — 30M+ digitized US newspaper pages, 1770–1963. Includes hundreds of ethnic-language papers: Yiddish dailies, German weeklies, Italian press, Polish papers, Chinese newspapers, Spanish-language journals. Global coverage via British Newspaper Archive, Trove (Australia), Gallica (France), Europeana, GenealogyBank, and Newspapers.com.
Genealogy Research
/api/chronica/person?name=Margaret+Sullivan&location=Chicago
Find an ancestor in historical newspapers — life events, marriage, occupation, family members named, address history, DNA next steps
$0.12
/api/chronica/obituary?name=Patrick+Callahan&location=Boston&year=1912
Extract genealogical gold from death notices — spouse, children (with married names), parents, siblings, pallbearers, burial location
$0.10
/api/chronica/timeline?subject=Emma+Kowalski&type=person&year_start=1895
Build a chronological narrative from all newspaper mentions — dated entries with confidence levels and gap analysis
$0.15
Immigration & Military
/api/chronica/immigration?name=Stanislaw+Kowalski&origin=Poland&destination=Chicago&year=1905
Ship manifests, passenger lists, ethnic-language newspapers, naturalization notices — includes name anglicization guide and arrival port history
$0.12
/api/chronica/military?name=James+Callahan&conflict=WWI&location=Brooklyn
Draft notices, casualty lists, homecomings, decorations, unit history — includes NARA records guidance and 1973 fire status
$0.10
Historical Research
/api/chronica/event?event=1906+San+Francisco+earthquake&year_start=1906
Contemporary newspaper coverage of any historical event — regional perspectives, what they knew, what they missed, genealogical connections
$0.08
/api/chronica/place?place=Lower+East+Side+New+York&year_start=1880&year_end=1920
Location history — ethnic communities, local newspapers, migration patterns, major events, genealogical resources
$0.08
/api/chronica/business?business=Carnegie+Steel&location=Pittsburgh
Historical business research — founding, labor history, employees named, advertisements, company timeline
$0.08
/api/chronica/search?q=1918+Spanish+flu+Philadelphia&year_start=1918&year_end=1919
Full-text search across global digitized archives with coverage assessment and research tips
$0.05
All endpoints return structured JSON · Payments via x402 on Base mainnet
Add ?lang=es (or any language) — Claude responds natively
OpenAPI Spec · Agent Discovery · llms.txt

For informational purposes only. Archive coverage is incomplete — absence of results does not mean absence of records.