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citepulse.theaslangroupllc.com api paper
https://citepulse.theaslangroupllc.com/api/paper
payable, partial
Single-paper lookup by DOI or title for research agents — citation count, influence, open-access status with a direct legal-OA link (Unpaywall), venue, and a TLDR. Deterministic passthrough over OpenAlex + Semantic Scholar + Unpaywall, no synthesis, cheap and fast.
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
- 275 ms
- Payment options
- 12 usable of 13
- Last checked
- 2026-08-10T09:12:40.195Z (1d ago)
- Category
- search
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fcitepulse.theaslangroupllc.com%2Fapi%2Fpaper"