# Maxwell x402 – Poland Open Data Portal Search (dane.gov.pl)

> Maxwell x402 – Poland Open Data Portal Search (dane.gov.pl) is a paid API for AI agents from api.maxwellinternational.ai, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-30).

Searches or fetches datasets from Poland's national open data portal (dane.gov.pl) by keyword or dataset ID, returning title, organization, last modified date, file count, and official link.

## Facts

- Endpoint: GET https://api.maxwellinternational.ai/v1/gov/pl/open-data?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/maxwell-x402-poland-open-data-portal-search-dane-gov-pl-d2a01e83
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CL3RP5sOOR0uq1-SEd5oS

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 maxwell-x402-poland-open-data-portal-search-dane-gov-pl-d2a01e83
```

Example prompt: Search Poland's national open data portal (dane.gov.pl) for datasets about 'transport' and show me the titles, publishing organizations, and links for the top results.

## When to prefer this

Use this endpoint when you need to discover or retrieve datasets from Poland's official national open data portal (dane.gov.pl). Prefer it over generic web search when you need structured metadata (organization, modification date, file count, direct link) about Polish government datasets. It is especially useful for researchers, journalists, or agents building pipelines that incorporate Polish public sector data. For French open data, use the sibling dane.gouv.fr endpoint instead.

## Known failure modes

- Dataset ID not found returns a 404, which is not charged
- Keyword with no matching results returns an empty items array
- Portal may be temporarily unavailable, causing a fetch delay of up to ~1 minute
- Missing or malformed query parameters may result in an error response
- Licence details reflect portal defaults; individual dataset licences must be verified on the dataset's own page

## How this service works

Search the national open data portal of Poland (dane.gov.pl) by keyword, or fetch one dataset by id: title, publishing organization, last modified date where the portal gives one, number of files and the official link, under the portal's licence terms (a dataset's own licence is on its official page). Uncached: 404, not charged, fetched within about a minute.

## Output

Returns a JSON object with ok status, a list of matching dataset items (each with id, title, modified date, sourceUrl, organization, and resourceCount), the original query, total count, source metadata, licence info, and the time the data was fetched. For single-dataset fetches by ID, returns the same structure for the specific dataset.

## 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"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "queryParams": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "sku": "gov.pl.open_data",
  "count": 10,
  "items": [
   {
    "id": "683",
    "title": "Rejestr fundacji nadzorowanych przez Ministra Klimatu i Srodowiska",
    "modified": "2024-03-19T19:14:14Z",
    "sourceUrl": "https://dane.gov.pl/pl/dataset/683,rejestr-fundacji-nadzorowanych-przez-minis...",
    "organization": "Ministerstwo Klimatu i Srodowiska",
    "resourceCount": 43
   }
  ],
  "query": "klimat",
  "family": "open_data",
  "source": "dane.gov.pl",
  "country": "Poland",
  "licence": {
   "url": "https://dane.gov.pl/pl/regulations",
   "name": "CC BY 4.0 default terms for dane.gov.pl; each dataset states its own licence"
  },
  "fetchedAt": "2026-09-29T13:36:51.412Z",
  "sourceUrl": "https://dane.gov.pl/",
  "totalCount": 54
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/maxwell-x402-poland-open-data-portal-search-dane-gov-pl-d2a01e83/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.maxwellinternational.ai](https://www.zero.xyz/host/api.maxwellinternational.ai/llms.txt)