Citations, References, Cited-By

api.kadec0.xyz · x402

Citation lookup and reference list for a paper. Given a DOI, arXiv id, OpenAlex id, or PMID, returns its references (the works it cites) and its cited-by list (recent works that cite it), plus full metadata and citation count — for bibliography building and citation lookup. Keyless via OpenAlex and Semantic Scholar.

Name and description as published by x402 Bazaar

Live

Last successful check: 25 Oct 2026, 20:09 UTC.

answered, last 24 hours: 100%
answered, last 30 days: 100%

How addrbook checks →

Connect

https://api.kadec0.xyz/v1/paper-details

x402: an unpaid request gets a 402 with the price and pay-to wallet. addrbook never pays.

Who's behind it

Listed by: x402 Bazaarlast seen 25 Oct, 19:50 UTC
Wallets named: 0x4df66b6c140778fe0717880a7c6dde5ea53acdeanamed by x402 Bazaar
Listed since: 25 Oct 2026, 17:50 UTC

Checks by endpoint

Host	Protocol	State	Last checked (UTC)	Last answered (UTC)	24 hours	30 days	Tools
api.kadec0.xyz	x402	Live	25 Oct, 20:09	25 Oct, 20:09	100%	100%	—

Also listed as

Other entries that share an endpoint with this one.

api.kadec0.xyz