# Causal Inference Research Funders Lookup

> Causal Inference Research Funders Lookup 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 reported research funders for academic papers on causal inference, sourced from Crossref publisher metadata with DOI references and source attribution.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/signal-research-causal-inference-funding-evidence?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/causal-inference-research-funders-lookup-4998ed00
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8DQu59bdIvfSpqBDhferU

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 causal-inference-research-funders-lookup-4998ed00 -d '<json body>'
```

Example prompt: Find me the reported research funders for academic papers on causal inference — pull up to 15 results with their DOIs and funder attribution from Crossref metadata.

## When to prefer this

Choose this endpoint when you need structured research funder attribution specifically for causal inference literature, sourced directly from Crossref publisher metadata with DOI references. It is preferable over general academic search APIs when the goal is funding provenance rather than full-text or citation analysis, and when you need a lightweight, per-call pay-as-you-go model rather than a subscription-based bibliometric service.

## Known failure modes

- Query returns no results if Crossref has no indexed funding metadata for the topic
- max_results out of range (must be 1–30) causes validation error
- Query string exceeding 200 characters is rejected
- Service may return partial or unlabelled funder data if Crossref records are incomplete
- Network or payment failure at x402 layer returns 402 or connection error

## How this service works

causal inference: Reported research funders: Reported research funders on causal inference using Crossref publisher metadata. Returns DOI references and source attribution. Query can be overridden; sample summaries are labelled.

## Output

A list of reported research funders associated with causal inference papers, including DOI references for source publications and attribution data drawn from Crossref publisher metadata. Results may include funder names, grant identifiers, and linked DOIs, with sample summaries labelled where applicable.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/causal-inference-research-funders-lookup-4998ed00/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)