Papers

Academic paper search (arXiv & more). 1 pay-per-call papers endpoint for AI agents — keyless, USDC via x402.

WATCHERS Don't poll — get woken up

Arm a paid watcher on papers and we push a signed callback the moment it happens — no polling loop. All watchers →

Paper $0.05get a signed callback when a new academic paper matching your query is published (arXiv / PubMed / Semantic Scholar).
papers.search$0.0024
Unified scientific literature search across arXiv (preprints), PubMed (biomedical), and Semantic Scholar (cross-field, with citation counts).
GET /api/papers/search

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