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Elements Live – Research Topic History (RIS/HRI)
x402
Elements Live – Research Topic History (RIS/HRI) is a paid API for AI agents from www.elements-live.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-12).
Returns yearly or monthly Research Intensity Score (RIS) and Hype-Relative Intensity (HRI) history for a keyword or sector research topic.
Price / call$0.1
Success—
StatusUnknown
How this service works
Yearly or monthly RIS/HRI history for one research topic.
Output
Returns a time series of RIS (Research Intensity Score) and HRI (Hype-Relative Intensity) values indexed by year or month for the specified research topic. Enables trend analysis and comparison of research momentum over time.
Example use cases
Tracking research momentum for a material
“I want to see how research intensity for perovskites has changed year by year — can you fetch the RIS and HRI history from Elements Live using the keyword subject ID for perovskites?”
Sector-level research trend analysis
“Can you get the full yearly research intensity history from Elements Live for the 'battery-materials' sector so I can see if interest has been growing or declining?”
Due diligence on emerging research area
“Before I fund this grant proposal, I need to understand the historical research trajectory — pull the RIS/HRI history for keyword subject ID 'solid-state-electrolytes' from Elements Live so I can see momentum trends.”
Technical details
Endpoint
GEThttps://www.elements-live.com/v1/subjects/:subject_type/:subject_id/history?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need historical time-series data (yearly or monthly) for RIS/HRI metrics on a specific research topic. Choose this over the current-snapshot endpoint when trend analysis, momentum tracking, or longitudinal comparison is needed. Use it after resolving a free-text topic to a subject_id via the search endpoint.
Side effects
- Invalid subject_type enum value (not 'keyword' or 'sector') returns a 400 error
- Unknown or invalid subject_id returns a 404 not found
- Payment failure or missing x402 payment header returns a 402 Payment Required
- No history available for a newly indexed subject may return an empty array
- Rate limiting may return a 429 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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