# Circular Economy Business Models Citation Records

> Circular Economy Business Models 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 Crossref-sourced citation records (DOIs and source attribution) for academic literature on circular economy business models.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/signal-research-circular-economy-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/circular-economy-business-models-citation-records-6829a6e8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xIdGO2-4snW0bHHotSX9m

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 circular-economy-business-models-citation-records-6829a6e8 -d '<json body>'
```

Example prompt: Can you pull up to 15 structured citation records with DOIs for academic papers on circular economy business models so I can build a reference list?

## When to prefer this

Choose this endpoint when you need fast, structured DOI-linked citation records from Crossref specifically for circular economy business model research, especially when building bibliographies, verifying scholarly sources, or seeding a research database. Prefer this over general web search when structured metadata (DOI, publisher, attribution) is required rather than free-text summaries.

## Known failure modes

- Query returns no results if the topic is too niche or misspelled
- max_results exceeding 30 returns a validation error
- Crossref metadata may be incomplete for some DOIs
- Slow response if upstream Crossref API is rate-limited
- Payment failure if insufficient USDC balance for $0.01 fee

## How this service works

circular economy business models: Structured citation records: Structured citation records on circular economy business models using Crossref publisher metadata. Returns DOI references and source attribution. Query can be overridden; sample summaries are labelled.

## Output

A list of structured citation records sourced from Crossref publisher metadata, each containing a DOI reference and source attribution for academic works related to circular economy business models. Up to 30 records can be returned per call.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "default": "circular economy business models",
   "maxLength": 200
  },
  "max_results": {
   "type": "integer",
   "default": 10,
   "maximum": 30,
   "minimum": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/circular-economy-business-models-citation-records-6829a6e8/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)