Overview
SLF is a free, no-authentication database API for German geographic data, including cities, rivers, countries, and related information. It is primarily useful for projects focused on German-language geographic lookups and searches. No API key is required, making it easy to get started immediately.
Beginner Tip
Consult the GitHub documentation to see the full list of supported endpoints and query parameters before building your requests. The data is German-language focused, so queries and results will use German names.
Available Data
The kind of data this API exposes, based on its documentation. We could not call the endpoint to confirm the exact field names.
Example Response
Illustrative shape only — we were not able to call this endpoint (it requires credentials or exposes no public sample URL), so the fields below show the kind of data this API returns rather than a recorded response.
{
"name": "Japan",
"capital": "Tokyo",
"population": 125800000,
"region": "Asia",
"languages": [
"Japanese"
],
"flag": "https://flagcdn.com/jp.svg",
"currencies": [
{
"code": "JPY",
"name": "Japanese yen"
}
]
} Field Reference
name Name of the German city, river, or country entry. type Category of the result, such as city, river, or country. population Population count for city entries. Implementation Example
Calls a real endpoint of this API. Replace any placeholder credentials with your own key.
const url = "https://github.com/slftool/slftool.github.io/blob/master/";
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.
Metadata Score Breakdown
Estimated from metadata — endpoint not independently tested
Metadata estimate · endpoint not independently tested
Technical Specifications
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