# RAG Structured Citation Records via Crossref

> RAG Structured Citation Records via Crossref is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-21).

Returns structured academic citation records with DOI references and source attribution for a given research query using Crossref publisher metadata.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/signal-research-rag-retrieval-citation-records?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/rag-structured-citation-records-via-crossref-c7728019
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_muVSt_Z2yUsLGCnaLk5Ax

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 rag-structured-citation-records-via-crossref-c7728019 -d '<json body>'
```

Example prompt: Find me up to 10 structured citation records with DOI references for the topic 'retrieval augmented generation' using Crossref publisher metadata, so I can attribute sources properly in my research pipeline.

## When to prefer this

Choose this endpoint when you need structured, citable academic references with DOI links and publisher metadata for a research query — especially when building RAG pipelines that require source attribution. Prefer this over general web search when you specifically need scholarly publication records with Crossref-verified DOIs rather than unstructured web content.

## Known failure modes

- Query returns zero results for highly niche or misspelled topics
- max_results exceeds the allowed maximum of 30 causing validation error
- Crossref upstream service unavailability causes empty or error response
- Query too long (over 200 characters) rejected at input validation

## How this service works

retrieval augmented generation: Structured citation records: Structured citation records on retrieval augmented generation 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 identifiers, bibliographic metadata, publisher information, and source attribution drawn from Crossref. May include sample document summaries labelled accordingly. Up to 30 records per call.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "default": "retrieval augmented generation",
   "maxLength": 200
  },
  "max_results": {
   "type": "integer",
   "default": 10,
   "maximum": 30,
   "minimum": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/rag-structured-citation-records-via-crossref-c7728019/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)