Kakao Maps Getting Started: API Keys & First Request (2026)

Getting started overview

Integrating Kakao Maps into a project involves a sequence of steps, beginning with account creation and application registration on the Kakao Developers platform. This process secures the necessary API keys for authentication. Subsequently, developers can choose between various SDKs (JavaScript, Android, iOS) or the REST API for direct interaction. The initial setup typically concludes with a basic API call, such as displaying a map or performing a geocoding request, to confirm correct configuration and authentication.

Kakao Maps provides mapping and location-based services with a focus on South Korea. Developers can access features like interactive maps, address search, geocoding, and local business information. The platform offers a free tier with generous usage limits before transitioning to a usage-based pricing model in Korean Won (KRW).

Quick Reference Steps

Create an account and get keys

To access Kakao Maps services, you must first establish a developer account and register your application. This process generates the necessary API keys for authenticating your requests.

1. Create a Kakao Developers Account

1. Navigate to the Kakao Developers website.
2. Click on the "Sign Up" or "Login" button. You can use an existing KakaoTalk account or create a new one.
3. Complete the registration process, agreeing to the terms and conditions.

2. Register Your Application

After logging in, you need to register an application to obtain API keys.

1. From the Kakao Developers dashboard, go to "My Application" (내 애플리케이션).
2. Click "Add Application" (애플리케이션 추가하기).
3. Provide an application name and upload an icon (optional). Click "Save" (저장).

3. Obtain API Keys

Once your application is registered, you can find your API keys.

1. Select your newly created application from the "My Application" list.
2. On the application's "Summary" (요약) page, you will find various keys. For most Getting Started scenarios, you will need the REST API Key or the JavaScript API Key.

4. Configure Platform Settings

Before making requests, you must configure the platform settings to specify where your API key will be used.

• For Web Applications (JavaScript API):
  1. Go to "Application Settings" (앱 설정) > "Platform" (플랫폼).
  2. Click "Register Web Platform" (웹 플랫폼 등록).
  3. Enter the allowed domain(s) where your application will be hosted (e.g., http://localhost:8080 for development, https://yourdomain.com for production).
• For Mobile Applications (Android/iOS SDKs):
  1. Under "Platform", select "Register Android Platform" (안드로이드 플랫폼 등록) or "Register iOS Platform" (iOS 플랫폼 등록).
  2. Provide the package name (Android) or Bundle ID (iOS) of your application.
  3. Register the Key Hash (Android) or disable the key hash requirement if you prefer.

Your first request

This section demonstrates a basic geocoding request using the Kakao Local API (REST API) to convert an address into coordinates. This is a common starting point for many mapping applications.

Using REST API (cURL Example)

The Kakao Local API provides geocoding functionality via a REST endpoint. You'll need your REST API Key obtained in the previous step.

Endpoint: https://dapi.kakao.com/v2/local/search/address.json

Parameters:

• query: The address to search for (e.g., "판교역" for Pangyo Station).

Authentication: Include your REST API Key in the Authorization header as KakaoAK {YOUR_REST_API_KEY}.

Example cURL Request:

curl -X GET "https://dapi.kakao.com/v2/local/search/address.json?query=%ED%8C%90%EA%B5%90%EC%97%AD" \
  -H "Authorization: KakaoAK YOUR_REST_API_KEY"

Replace YOUR_REST_API_KEY with your actual REST API Key. The %ED%8C%90%EA%B5%90%EC%97%AD is the URL-encoded form of "판교역" (Pangyo Station).

Expected JSON Response (simplified):

{
  "documents": [
    {
      "address_name": "경기 성남시 분당구 판교역로 166",
      "y": "37.39466378",
      "x": "127.1114227",
      "address_type": "ROAD_ADDR",
      "road_address": {
        "address_name": "경기 성남시 분당구 판교역로 166",
        "zone_no": "13493",
        "y": "37.39466378",
        "x": "127.1114227",
        "road_name": "판교역로",
        "building_name": "카카오판교아지트"
      }
    }
  ],
  "meta": {
    "total_count": 1,
    "is_end": true
  }
}

This response provides the geocoded coordinates (x for longitude, y for latitude) and detailed address information for "Pangyo Station".

Using JavaScript API (Web Example)

For web-based applications, the Kakao Maps JavaScript API allows direct embedding of maps and interactive elements. You'll need your JavaScript API Key and to configure your allowed domain.

HTML Structure:

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>Kakao Maps Basic Example</title>
</head>
<body>
    <div id="map" style="width:500px;height:400px;"></div>
    <script type="text/javascript" src="//dapi.kakao.com/v2/maps/sdk.js?appkey=YOUR_JAVASCRIPT_API_KEY"></script>
    <script>
        var container = document.getElementById('map');
        var options = {
            center: new kakao.maps.LatLng(33.450701, 126.570667), // Jeju Island default center
            level: 3
        };

        var map = new kakao.maps.Map(container, options);
    </script>
</body>
</html>

Replace YOUR_JAVASCRIPT_API_KEY with your actual JavaScript API Key. This code initializes a basic map centered on Jeju Island with a default zoom level. Ensure the domain where this HTML file is served (e.g., localhost or your deployed domain) is registered in your Kakao Developers application settings.

Common next steps

Once you have successfully made your first request, consider these common next steps to further develop your Kakao Maps integration:

• Explore Advanced Geocoding: Utilize the Kakao Local API reference for reverse geocoding (coordinates to address), address search with categories, and administrative district searches.
• Integrate Map Markers and Overlays: Learn how to add custom markers, information windows, and other overlays to your maps using the respective SDK documentation for Kakao Maps JavaScript API, Android, or iOS.
• Implement User Interaction: Handle events such as map clicks, marker drags, and zoom changes to create dynamic map experiences.
• Route and Direction Services: Investigate if Kakao Maps offers routing or direction APIs suitable for your application's needs. Note that specific routing capabilities might be part of separate Kakao services or require additional integration.
• Review Usage and Billing: Monitor your API usage through the Kakao Developers console to stay within free tier limits or manage paid usage. Refer to the Kakao pricing page for detailed information.
• Internationalization: While primarily focused on Korean data, understand the capabilities and limitations for displaying international data or supporting non-Korean interfaces if your application targets a global audience. For broader international mapping, alternatives like Google Maps Platform might be considered.

Troubleshooting the first call

Encountering issues during your initial API call is common. Here are some troubleshooting steps:

• Check API Key Validity:
  • Ensure you are using the correct API key type (e.g., REST API Key for REST calls, JavaScript API Key for web SDK).
  • Double-check that the key is copied correctly without extra spaces or characters.
• Verify Platform Settings:
  • Web (JavaScript API): Confirm that the domain (e.g., localhost:8080, yourdomain.com) where your web application is running is precisely registered in your Kakao Developers application's "Platform" settings under "Web Platform." Mismatches will result in API loading failures.
  • Mobile (Android/iOS SDKs): Ensure the package name (Android) or Bundle ID (iOS) matches exactly, and that the Key Hash (Android) is correctly registered if required.
• Review API Documentation: Consult the Kakao Maps REST API documentation or specific SDK documentation for the exact endpoint, required parameters, and expected request/response formats. Pay close attention to header requirements for REST calls.
• Examine Error Messages:
  • HTTP Status Codes: Look for non-200 HTTP status codes. 401 Unauthorized often indicates an API key or authentication issue. 400 Bad Request suggests incorrect parameters or malformed requests.
  • Response Body: The API response body often contains detailed error messages that can pinpoint the problem.
  • Browser Console (Web): Check your browser's developer console for JavaScript errors or network request failures when using the JavaScript API.
• Check Usage Limits: While unlikely for a first call, verify that you haven't exceeded the free tier or any rate limits for your application. You can check your usage statistics in the Kakao Developers console.
• Language Barrier: The primary documentation is in Korean. Use browser translation features or refer to community resources if you are not fluent in Korean to better understand the documentation and error messages.