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citepulse.theaslangroupllc.com api ref-check
https://citepulse.theaslangroupllc.com/api/ref-check
payable, partial
Bibliography verification for AI research agents — POST up to 20 citations (DOIs or free-text references) and get a per-reference verdict: exists/not-found, retracted/withdrawn (Crossref + Retraction Watch + OpenAlex), and title/author/year mismatches against a real record. Built for agents auditing LLM-generated bibliographies before a citation ships.
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
It advertises 13 ways to pay and only 12 of them are usable.- Price
- $0.02
- Network
- base
- Pay to
- 0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 213 ms
- Payment options
- 12 usable of 13
- Last checked
- 2026-08-10T09:13:03.376Z (1d ago)
- Category
- search
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fcitepulse.theaslangroupllc.com%2Fapi%2Fref-check"