# Knowledge Graph Construction: Structured Citation Records

> Knowledge Graph Construction: Structured Citation Records is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-17).

Returns structured citation records and DOI references for academic literature on knowledge graph construction, sourced from Crossref publisher metadata.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/signal-research-knowledge-graphs-citation-records?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/knowledge-graph-construction-structured-citation-records-4a92b1c6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gkplbG7yiyCgOmLlSox81

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 knowledge-graph-construction-structured-citation-records-4a92b1c6 -d '<json body>'
```

Example prompt: Can you pull up structured citation records and DOI references for research on knowledge graph construction — give me the top 10 results from Crossref metadata?

## When to prefer this

Choose this endpoint when you need structured, publisher-verified citation records with DOI references for academic research on knowledge graph construction specifically. It is backed by Crossref metadata, making it more reliable for bibliographic attribution than general web search. Prefer it over general web search when you need machine-readable DOIs and source attribution for citation graphs or literature reviews.

## Known failure modes

- Query returns no results if topic is too niche or misspelled
- max_results exceeding 30 will be rejected by schema validation
- Crossref metadata may be incomplete for some DOIs
- Slow or no response if upstream Crossref API is unavailable
- Payment failure via x402 protocol if USDC balance is insufficient

## How this service works

knowledge graph construction: Structured citation records: Structured citation records on knowledge graph construction using Crossref publisher metadata. Returns DOI references and source attribution. Query can be overridden; sample summaries are labelled.

## Output

Returns structured citation records including DOI references and source attribution for academic papers related to the query topic, drawn from Crossref publisher metadata. Typically includes paper titles, authors, publication venues, DOIs, and bibliographic details for up to 30 results.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "default": "knowledge graph construction",
   "maxLength": 200
  },
  "max_results": {
   "type": "integer",
   "default": 10,
   "maximum": 30,
   "minimum": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/knowledge-graph-construction-structured-citation-records-4a92b1c6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)