Overview
The Switzerland Open Government Data API (opendata.swiss) provides a CKAN-based catalog of datasets from Swiss federal, cantonal, and municipal authorities. No API key is required, and it supports search, filtering, and direct dataset access. It is a reliable source for Swiss statistics, geography, and government records.
Beginner Tip
Use the CKAN API endpoint at opendata.swiss/api/3/action/ — start with package_list to see all dataset IDs, then use package_show?id=DATASET_ID to get download links for a specific dataset.
Measurement Record
What actually happened when we called this API from our own infrastructure. Every value below was recorded by the request, not copied from the provider's documentation.
- Request
- GET https://opendata.swiss/api/3/action/package_search?q=population&rows=5
- Result
- HTTP 200 · application/json · 103,763 bytes
- Response time
- 563 ms (median of 3) · fastest 316 ms
- Transport
- TLSv1.3 · TLS_AES_256_GCM_SHA384 · certificate issued by Let's Encrypt
- Browser CORS
- Allowed — Access-Control-Allow-Origin: *
- Recorded
- 2026-08-10
Fields Returned
Top-level fields present in the response we captured, with the type and value we actually received.
| Field | Type | Value received |
|---|---|---|
| count | integer | 3135 |
| facets | object | {0 fields} |
| results | array | [1 item] |
| sort | string | score desc, metadata_modified desc |
| search_facets | object | {0 fields} |
Captured Response
Captured from a real request to https://opendata.swiss/api/3/action/package_search?q=population&rows=5 on 2026-08-10. Long arrays and nested objects are truncated to keep the shape readable.
{
"help": "https://ckan.opendata.swiss/api/3/action/help_show?name=package_search",
"success": true,
"result": {
"count": 3135,
"facets": {},
"results": [
{
"…": "(45 more fields)"
}
],
"sort": "score desc, metadata_modified desc",
"search_facets": {}
}
} Field Reference
success Indicates whether the API action completed successfully Implementation Example
Calls a real endpoint of this API. Replace any placeholder credentials with your own key.
const url = "https://handbook.opendata.swiss/de/content/nutzen/";
const response = await fetch(url);
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data); What Can You Build?
Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.
Common Errors & Troubleshooting
Generated guidance based on this API's documentation, not observed by us. Treat it as a starting point and check against the provider's own error reference.
Measured Score Breakdown
Live HTTP request to the API endpoint
Fully tested on Aug 10, 2026
Technical Specifications
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