City, Lviv API

Free to Use
54 D
Measured Score 0 50 100 Speed 6/30 Consistency 20/20 Security 20/20 Browser access 0/15 Transparency 8/15 TESTED 2026-08-10

Overview

City, Lviv is an open data portal providing free access to datasets from Lviv, Ukraine, including urban infrastructure, transport, and city services. No API key is required, making it easy to start querying data right away. It is a great resource for building local civic apps or exploring Eastern European urban datasets.

Beginner Tip

Browse the portal at opendata.city-adm.lviv.ua to find a dataset you want, then use its API endpoint directly in your requests—no sign-up needed.

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.city-adm.lviv.ua/api/3/action/package_list
Result
HTTP 200 · application/json · 70,753 bytes · compressed
Response time
528 ms (median of 3) · fastest 522 ms
Transport
TLSv1.3 · TLS_AES_256_GCM_SHA384 · certificate issued by Google Trust Services
Browser CORS
No Access-Control-Allow-Origin header — call it from a server, not the browser
Served by
cloudflare
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
help string (url) https://opendata.city-adm.lviv.ua/api/3/actio…
success boolean true
result array [1 item]

Captured Response

Captured from a real request to https://opendata.city-adm.lviv.ua/api/3/action/package_list on 2026-08-10. Long arrays and nested objects are truncated to keep the shape readable.

JSON Response · Captured
{
  "help": "https://opendata.city-adm.lviv.ua/api/3/action/help_show?name=package_list",
  "success": true,
  "result": [
    "00909f8f-e805-4c0d-8348-d67c8be0f1a7"
  ]
}

Field Reference

success Indicates whether the API call completed successfully.
result The list of dataset names or records returned by the query.
help URL pointing to the documentation for the API action used.

Implementation Example

Calls a real endpoint of this API. Replace any placeholder credentials with your own key.

Request
const url = "https://opendata.city-adm.lviv.ua/api/3/action/package_list";
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.

How This API Fails

We deliberately sent this API a broken request and recorded exactly what came back on 2026-08-10. Knowing the shape of an error before you hit it makes error handling much easier to write.

HTTP 404 Requesting a path that does not exist text/html

Returned an HTML error page rather than JSON — worth knowing if your client assumes every response can be parsed as JSON.

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.

404 Not Found The dataset endpoint path is incorrect or the dataset slug has changed.
Browse the portal to verify the current dataset URL and slug before building your request.
Empty response body The requested dataset may have no published records or the filter returns zero results.
Try removing filters first to confirm the dataset has data, then narrow down your query.
Connection timeout The portal may experience intermittent downtime or slow responses under load.
Add a retry with exponential backoff and set a reasonable timeout (e.g., 10 seconds) in your HTTP client.

Measured Score Breakdown

Live HTTP request to the API endpoint

Speed 6/30
Consistency 20/20
Security 20/20
Browser access 0/15
Transparency 8/15
Endpoint Response Time 528ms

Fully tested on Aug 10, 2026

Technical Specifications

Auth No Auth
HTTPS REQUIRED
CORS UNKNOWN
Category Government
Difficulty Beginner
Endpoint last called: 2026-08-10

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