# DataNexusAI Dataset Catalog Listing

> DataNexusAI Dataset Catalog Listing is a paid API for AI agents from api.datanexusai.org, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-03).

Returns a paginated list of all available datasets on DataNexusAI, including dataset names and row counts

## Facts

- Endpoint: GET https://api.datanexusai.org/api/v1/datasets?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-03
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/datanexusai-dataset-catalog-listing-4b91b739
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_C7ukzq9ylH4sixCuJ46YE

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 datanexusai-dataset-catalog-listing-4b91b739
```

Example prompt: Can you show me the first 100 datasets available on DataNexusAI so I can see what data I can work with?

## When to prefer this

Use this endpoint when you need to discover what datasets are available on DataNexusAI before querying specific data. It is the entry point for dataset exploration and should be called first to identify relevant dataset names for downstream queries. Prefer this over hardcoding dataset names if the catalog may change.

## Known failure modes

- Invalid limit or offset values may return a 400 error
- Payment failure via x402 (USDC) results in a 402 response blocking data access
- Empty array returned if no datasets are registered
- Network timeout on large catalog responses
- Offset beyond total dataset count returns empty result set

## How this service works

Public data API for SEBRA payments, PTP road accidents, Hearthstone cards, EU agri-food prices, and trade/market analytics. Paid data endpoints use x402 (USDC micropayments). Docs and discovery endpoints are free.

Machine-readable discovery: `https://api.datanexusai.org/openapi.json`, `https://api.datanexusai.org/llms.txt`, `https://api.datanexusai.org/.well-known/x402`.

Human docs: `/docs` and `/api/`.

## Output

A JSON array of dataset objects, each containing the dataset name (e.g. 'cereals_prices') and its row count. Supports pagination via limit and offset parameters.

## 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",
     "properties": {
      "limit": {
       "type": "integer",
       "example": 100,
       "description": "Page size (optional)."
      },
      "offset": {
       "type": "integer",
       "example": 0,
       "description": "Offset (optional)."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": [
  {
   "dataset": "cereals_prices",
   "row_count": 1000
  }
 ]
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/datanexusai-dataset-catalog-listing-4b91b739/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.datanexusai.org](https://www.zero.xyz/host/api.datanexusai.org/llms.txt)