Overview
The IDOS API provides public transport connection search for the Czech Republic, covering buses, trains, and urban transit. No authentication is required for basic use, making it accessible for beginners. It is the primary route-planning API used by Czech transit applications.
Beginner Tip
No API key is required for basic queries. The API is primarily designed for connection searches between Czech cities — try searching for connections between Prague and Brno to see it in action.
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.
{
"route": "Line 1",
"origin": "Station A",
"destination": "Station B",
"departure": "08:30",
"arrival": "09:15",
"status": "On Time",
"delays_min": 0
} Field Reference
Connection A single travel connection from origin to destination Trains List of train or vehicle segments in the journey Departure Departure time for a journey segment Arrival Arrival time for a journey segment Via Intermediate transfer stop name if applicable Implementation Example
Calls a real endpoint of this API. Replace any placeholder credentials with your own key.
const url = "https://idos.idnes.cz/pid/spojeni/?f=Praha&t=Brno&date=2026-04-16&time=10:00";
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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