Kakao API

Social / OAuth Advanced HTTPS
Varies by plan (check documentation)

Overview

The Kakao API provides login, messaging, social sharing, and map services for the KakaoTalk platform, which is dominant in South Korea. It uses OAuth 2.0 for user authentication and lets you build apps that send messages, access profile data, and interact with Kakao services. You will need to register your app at developers.kakao.com to get an API key.

💡

Beginner Tip

Kakao has separate keys for different services — use the REST API key (not the JavaScript key) for server-side calls. Start with the token info endpoint to verify your access token is valid before making other API calls.

Available Data

stock price and symbol
open/close/high/low values
trading volume
market cap
historical price data

Example Response

JSON Response
{
  "status": "success",
  "data": {
    "result": "Data from Kakao",
    "description": "Kakao Login, Share on KakaoTalk, Social Plugins and more",
    "timestamp": "2025-01-15T10:00:00Z"
  }
}

Field Reference

id Unique numeric ID for the Kakao user
expires_in Seconds remaining until the access token expires
app_id The Kakao app ID associated with the token
kakao_account.profile.nickname The user display name on KakaoTalk
kakao_account.email The user Kakao account email address if permission was granted

Implementation Example

const url = "https://developers.kakao.com/";
// Replace headers or query params with the values required by this API.
const response = await fetch(url, {
  headers: {
  "Authorization": "Bearer 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

-401 KOE101: Invalid token Access token is expired or malformed
Re-authenticate the user to get a fresh access token, or use the refresh token to obtain a new one via the token endpoint
-402: Token does not exist Token was revoked or the user logged out
Redirect the user to the Kakao login flow to re-authorize your app
-403: No permission for this API Required scope was not requested during authorization
Add the needed scope such as profile or account_email to your authorization request at developers.kakao.com

Matrix Score Breakdown

🌐 Reachability 30/30
⚡ Speed 10/20
🔒 Security 15/15
🛠 Developer XP 3/20
✓ Reliability 10/15

Partially tested on Apr 5, 2026

Technical Specifications

Auth OAuth
HTTPS REQUIRED
CORS UNKNOWN
Category Social
Difficulty Advanced
Verified: 2026-04-04

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