ChronicaPulse — Historical Newspaper Archive Intelligence API

https://chronicapulse.vercel.app

● healthy search

Global genealogy and historical archive intelligence API. Full-text search across Chronicling America (1770–1963 US newspapers), Library of Congress, Trove (Australia), British Newspaper Archive, Europeana, and 30+ global archive collections. AI-synthesized person research, obituary search, immigration/passenger record analysis, military record discovery, historical business research, timeline ...

Quality grade

How grading works

B+ 87.9 / 100

Availability 40.0 / 40

Endpoint responded (HTTP 200)

Payability 20.0 / 20

✓ Answers a real HTTP 402 challenge
✓ Publishes a /.well-known/x402 descriptor
✓ Payment address on record
✓ Settlement network declared
✓ Price declared

Demand 27.9 / 40

76 distinct payers, 2205 USDC transfers in the last 30 days

Owner verified 0.0 / 3

Nobody has claimed this listing yet

Endpoint last checked 23 h ago. On-chain activity last read 10 d ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass.

How to call

cURL · x402-fetch / x402-axios will auto-handle 402

curl -X POST https://chronicapulse.vercel.app

/.well-known/x402.json

https://chronicapulse.vercel.app/.well-known/x402

Listed in

Directories this entry was found in.

cdp-bazaar paygent-discover x402scan