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Research-intensity (RI/RIS/HRI) data for 118 chemical elements and thousands of research topics/keywords, derived from a continuously updated scientific-literature corpus. Current element scores need no key; element history and topic search are free with any API key; topic/keyword data requires an Enterprise account. Without a key, every keyed operation can be paid per call in USDC on Base or…

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Transactions · 30d
12
Volume · 30d
$0.36
Unique buyers · 30d
3
Uptime · 30d
100.0%
Latency p50
109ms
Reported calls · 30d
26

Endpoints (23 live)

  • GET /v1/subjects/:subject_type/:subject_id — Current RI, RIS, HRI and paper count for one research topic. (0.01 USDC on Solana)
  • GET /v1/subjects/:subject_type/:subject_id/history — Yearly or monthly RIS/HRI history for one research topic. (0.1 USDC on Base)
  • GET /v1/subjects/:subject_type/:subject_id/elements — The chemical elements most associated with one research topic. (0.1 USDC on Base)
  • GET /v1/lab/quote — Lab quote: a filter query (+must -exclude "topic" (a OR b) wild* year:a..b) in; matching paper volume by year and research community, and a binding price per deliverable out. (0.01 USDC on Base)
  • GET /v1/elements/:symbol/papers — Top papers driving an element's research intensity (title, DOI, venue, year, citations). (0.02 USDC on Base)
  • GET /v1/subjects/:subject_type/:subject_id/papers — Top papers driving a research topic's research intensity (title, DOI, venue, year, citations). (0.02 USDC on Base)
  • GET /v1/elements/:symbol/history — Yearly RIS/HRI research-intensity history for one chemical element. (0.05 USDC on Base)
  • GET /v1/subjects/search — Resolve a free-text topic, compound or material to a subject id. (0.01 USDC on Solana)
  • GET /v1/elements/Fe/history (0.05 USDC on Base)
  • GET /v1/subjects/keyword/lithium-niobate/history (0.1 USDC on Base)
  • GET /v1/subjects/keyword/lithium-niobate/elements (0.1 USDC on Base)
  • GET /v1/subjects/keyword/lithium-niobate (0.01 USDC on Base)
  • GET /v1/subjects/search (0.01 USDC on Base)
  • GET /v1/subjects/keyword/lithium-niobate/papers (0.02 USDC on Base)
  • GET /v1/elements/Fe/papers (0.02 USDC on Base)
  • GET /v1/lab/quote (0.01 USDC on Base)
  • GET /v1/elements/1/papers — Top papers driving an element's research intensity (title, DOI, venue, year, citations). (0.02 USDC on Solana)
  • GET /v1/elements/1/history — Yearly RIS/HRI research-intensity history for one chemical element. (0.05 USDC on Base)
  • GET /v1/subjects/1/1/elements — The chemical elements most associated with one research topic. (0.1 USDC on Solana)
  • GET /v1/subjects/1/1/papers — Top papers driving a research topic's research intensity (title, DOI, venue, year, citations). (0.02 USDC on Base)

+3 more endpoints.

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