Overview
City, Nantes Open Data gives developers access to datasets published by Nantes Métropole in France, covering transport, environment, and urban planning. You will need a free API key from the portal to authenticate your requests. It is a good starting point for exploring French municipal open data in your projects.
Beginner Tip
Register for a free API key on the Nantes Open Data portal and include it as a query parameter (e.g., ?apikey=YOUR_API_KEY) in each request.
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.
{
"status": "success",
"data": {
"result": "Data from City, Nantes Open Data",
"description": "Nantes(FR) City Open Data",
"timestamp": "2025-01-15T10:00:00Z"
}
} Field Reference
total_count Total number of matching records available in the dataset. results Array of dataset or record objects returned for the current page. links Pagination links including next and previous page URLs. nhits Number of hits (records) in the current response page. Implementation Example
Calls a real endpoint of this API. Replace any placeholder credentials with your own key.
const url = "https://data.nantesmetropole.fr/api/explore/v2.1/catalog/datasets?apikey=YOUR_API_KEY&limit=10";
// Replace headers or query params with the values required by this API.
const response = await fetch(url, {
headers: {
"X-API-Key": "YOUR_API_KEY"
}
});
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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