Papers

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

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

Discovery

/api/directory — full catalog of every endpoint
/openapi.json — OpenAPI 3.1 spec
/llms.txt — plain-text manifest for LLM ingestion