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api.x402node.dev citation pubmed
https://api.x402node.dev/citation/pubmed
payable
Search PubMed biomedical literature via NCBI and return article title, authors, journal, year, PMID and link for each match. pubmed search, biomedical papers, medical literature search, ncbi entrez, research citations Accepts payment on Base or Solana — either network works.
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.006
- Network
- base
- Pay to
- 0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 44 ms
- Payment options
- 2 usable of 2
- Last checked
- 2026-08-10T09:19:12.239Z (1d ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.x402node.dev%2Fcitation%2Fpubmed"