Index onlineMerchant portal
Api Endpoint

research.halowerk.com

Searches the official EU open data portal and returns datasets with what decides whether they are usable: the licence, classified by whether commercial reuse is allowed and what attribution or share-alike it demands. A dataset under a non-commercial licence is marked as unusable for a paid product rather than listd as if equivalent. Each result also carries its publisher, country, last modification date, the distribution formats available and how many there are, and direct links.

Open interactive test console

Offering

Provider
research.halowerk.com
Method
POST
Offering type
Api Endpoint
Transport type
http
Category
Data
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://research.halowerk.com/v1/dataset-discovery
MIME type
Not provided
First seen
2026-10-16T01:57:40.935Z
Last seen
Tags
None supplied

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E"
  }
]

Observed health

Status
Healthy
Latest latency
316 ms
Average latency
626 ms
HTTP status
204
Last checked
Reachability
100% over 10 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "additionalProperties": false,
  "properties": {
    "body": {
      "additionalProperties": false,
      "properties": {
        "commercial_use_only": {
          "default": false,
          "description": "Hide datasets whose licence forbids commercial reuse.",
          "type": "boolean"
        },
        "country": {
          "description": "Publisher country, ISO code.",
          "maxLength": 2,
          "minLength": 2,
          "type": "string"
        },
        "format": {
          "description": "Required distribution format, e.g. CSV, JSON, GEOJSON.",
          "maxLength": 20,
          "type": "string"
        },
        "limit": {
          "default": 10,
          "description": "How many results.",
          "maximum": 25,
          "minimum": 1,
          "type": "integer"
        },
        "max_age_days": {
          "description": "Only datasets modified within this many days.",
          "maximum": 7300,
          "minimum": 1,
          "type": "integer"
        },
        "query": {
          "description": "Search terms, e.g. \"air quality\", \"energy consumption\".",
          "maxLength": 200,
          "minLength": 2,
          "type": "string"
        }
      },
      "required": [
        "query"
      ],
      "type": "object"
    },
    "bodyType": {
      "enum": [
        "json",
        "form-data",
        "text"
      ],
      "type": "string"
    },
    "method": {
      "enum": [
        "POST",
        "PUT",
        "PATCH"
      ],
      "type": "string"
    },
    "type": {
      "const": "http",
      "type": "string"
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ],
  "type": "object"
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "additionalProperties": false,
          "properties": {
            "commercial_use_only": {
              "default": false,
              "description": "Hide datasets whose licence forbids commercial reuse.",
              "type": "boolean"
            },
            "country": {
              "description": "Publisher country, ISO code.",
              "maxLength": 2,
              "minLength": 2,
              "type": "string"
            },
            "format": {
              "description": "Required distribution format, e.g. CSV, JSON, GEOJSON.",
              "maxLength": 20,
              "type": "string"
            },
            "limit": {
              "default": 10,
              "description": "How many results.",
              "maximum": 25,
              "minimum": 1,
              "type": "integer"
            },
            "max_age_days": {
              "description": "Only datasets modified within this many days.",
              "maximum": 7300,
              "minimum": 1,
              "type": "integer"
            },
            "query": {
              "description": "Search terms, e.g. \"air quality\", \"energy consumption\".",
              "maxLength": 200,
              "minLength": 2,
              "type": "string"
            }
          },
          "required": [
            "query"
          ],
          "type": "object"
        },
        "bodyType": {
          "enum": [
            "json",
            "form-data",
            "text"
          ],
          "type": "string"
        },
        "method": {
          "enum": [
            "POST",
            "PUT",
            "PATCH"
          ],
          "type": "string"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method",
        "bodyType",
        "body"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}