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vaaya.ai openalex works
https://vaaya.ai/api/run/openalex/works
answers 402
Search 250M+ scholarly works (OpenAlex — successor to Microsoft Academic Graph). Pass `search` and/or `filter` (comma-joined, e.g. from_publication_date:2024-01-01,is_oa:true,cited_by_count:>100), optional `sort`, `page`, `per_page`. Returns metadata + abstracts + citation counts + OA links. The citation-graph layer kadec0/papers lacks.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.01
- Network
- base
- Pay to
- 0x7c655d3d3944Bd27994dD81A036C3aFB19806C40
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 453 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-15T14:26:15.044Z (1d ago)
- Category
- search
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fvaaya.ai%2Fapi%2Frun%2Fopenalex%2Fworks"