# Elements Live – Current Research Intensity Metrics for a Topic

> Elements Live – Current Research Intensity Metrics for a Topic is a paid API for AI agents from www.elements-live.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).

Returns current RI, RIS, HRI scores and total paper count for a given research topic (keyword or sector).

## Facts

- Endpoint: GET https://www.elements-live.com/v1/subjects/:subject_type/:subject_id?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/elements-live-current-research-intensity-metrics-for-a-topic-d1468795
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hkppvuzk378PPvtCfdHN1

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability elements-live-current-research-intensity-metrics-for-a-topic-d1468795
```

Example prompt: What are the current RI, RIS, and HRI scores and total paper count for the keyword topic with subject ID 'graphene' on Elements Live?

## When to prefer this

Use this endpoint when you need a quick, real-time snapshot of a research topic's current intensity metrics without needing historical trends. It is the right choice when you already have a subject_id (obtainable via the /v1/subjects/search endpoint) and want to assess how active or hot a research area is at this moment, rather than analyzing year-over-year trends or drilling into specific papers.

## Known failure modes

- Invalid subject_type value (must be 'keyword' or 'sector') returns a 400 or validation error
- Unknown or unresolvable subject_id returns a 404 not found
- Missing required path parameters returns an error
- Payment failure via x402 protocol results in 402 Payment Required
- Rate limiting may return 429 if quota is exceeded

## How this service works

Current RI, RIS, HRI and paper count for one research topic.

## Output

A JSON object containing the current Research Intensity (RI), Research Intensity Score (RIS), High Research Intensity (HRI) flag or value, and the total number of papers associated with the given research topic (keyword or sector).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "subject_type",
      "subject_id"
     ],
     "properties": {
      "subject_id": {
       "type": "string",
       "description": "From /v1/subjects/search"
      },
      "subject_type": {
       "enum": [
        "keyword",
        "sector"
       ],
       "type": "string"
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "entity",
      "metrics",
      "as_of",
      "notes",
      "canonical_url",
      "methodology_url",
      "license"
     ],
     "properties": {
      "notes": {
       "type": "object"
      },
      "entity": {
       "type": "object",
       "required": [
        "type",
        "id",
        "name"
       ],
       "properties": {
        "id": {
         "type": "string"
        },
        "name": {
         "type": "string"
        },
        "type": {
         "type": "string"
        }
       }
      },
      "license": {
       "type": "string"
      },
      "metrics": {
       "type": "object",
       "required": [
        "ri",
        "ris",
        "hri",
        "paper_count"
       ]
      },
      "canonical_url": {
       "type": "string"
      },
      "methodology_url": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/elements-live-current-research-intensity-metrics-for-a-topic-d1468795/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.elements-live.com](https://www.zero.xyz/host/www.elements-live.com/llms.txt)