# Elements Live Subject Search

> Elements Live Subject Search 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).

Resolves a free-text topic, compound, or material name to a canonical subject ID used across the Elements Live research intelligence platform.

## Facts

- Endpoint: GET https://www.elements-live.com/v1/subjects/search?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-subject-search-1076558a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_e6ET82wxUKEPYgTO3DH9g

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-subject-search-1076558a
```

Example prompt: Can you look up the Elements Live subject ID for 'graphene oxide' so I can query its research intensity and top papers?

## When to prefer this

Use this endpoint as the first step whenever you need to interact with any Elements Live research intelligence endpoint — it resolves free-text topic or compound names to the subject IDs required by all other platform endpoints. Prefer this over guessing subject IDs manually or hardcoding them.

## Known failure modes

- Query string matches no known subject — returns empty results or 404
- Ambiguous query matches multiple subjects — may return a list requiring disambiguation
- Misspelled or non-standard compound names may fail to resolve
- Rate limiting or payment failure for x402 micropayment

## How this service works

Resolve a free-text topic, compound or material to a subject id.

## Output

Returns a canonical subject ID (and likely subject name/metadata) that identifies the resolved topic, compound, or material within the Elements Live platform, enabling subsequent API calls for research intensity scores, paper rankings, and trend history.

## 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"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "q"
     ],
     "properties": {
      "q": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "count",
      "results"
     ],
     "properties": {
      "count": {
       "type": "integer"
      },
      "results": {
       "type": "array",
       "items": {
        "type": "object",
        "required": [
         "subject_type",
         "subject_id",
         "display_name",
         "kind",
         "canonical_url"
        ],
        "properties": {
         "subject_id": {
          "type": "string"
         },
         "subject_type": {
          "type": "string"
         },
         "canonical_url": {
          "type": "string"
         }
        }
       }
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/elements-live-subject-search-1076558a/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)