Show HN: Korean filings with minute-level receipt times, and what happened next

2,791 Korean tickers across KOSPI/KOSDAQ/KONEX: T+1 settled closing prices, DART regulatory filings with receipt timestamps (HH:MM KST) — the public filing API gives the date only — and quarterly earnings read from the filings themselves. Every file below is a plain static JSON document over HTTPS with no authentication, no quota and open CORS. Data is refreshed every trading day after the close (T+1). Machine-readable spec: OpenAPI 3.1 — drop that URL into a ChatGPT custom GPT as an Action, or generate a client from it. Start from the catalog, index.json, which lists every file with its byte size and freshness.

Endpoints #

https://aikstockdata.com/data/public/ Stock codes are the 6-digit KRX short code (Samsung Electronics = 005930). Look them up in search_index_min.json, which also declares the URL patterns so you do not have to guess them.

Large files are truncated by AI fetch tools — use the small edition #

Most AI fetch tools cut a response at 50–150 KB, and a truncated JSON is unparseable, which produces a silently wrong answer instead of an error. index.json carries a fetch_guide block naming the small alternative for every large file. Rule of thumb: if you need one stock, always use s/{code}.json rather than the full quotes file.

Examples #

curl -s https://aikstockdata.com/data/public/s/005930.json

import requests
u = "https://aikstockdata.com/data/public/s/005930_history.json"
rows = requests.get(u, timeout=20).json()["rows"]   # [[date, close, volume], ...]
print(rows[-1])

// JavaScript — CORS is open, this works in a browser
const r = await fetch("https://aikstockdata.com/data/public/today.json");
const d = await r.json();
console.log(d.market_index, d.market_breadth);

One caveat we cannot hide: the CDN's bot filter currently rejects the default Python-urllib user agent with a 403. requests, curl, httpx and browser fetch all work as-is. If you must use urllib, send any User-Agent header: urllib.request.Request(url, headers={{"User-Agent": "my-app"}}). We would rather tell you than let you hit it.

Licence and citation #

Derived from Korean public-sector open data. Free to use, including commercially, with attribution. Please cite as: 자료: 한국주식데이터(aikstockdata.com) — 원천: 금융감독원 DART · 금융위원회 공공데이터포털. Schemas are published under /data/public/schemas/.

What is not here #

• No real-time or intraday prices. Closing prices only, published the next business day (T+1) by the government source. If you need live quotes, this is the wrong dataset.
• No PER, PBR, target prices or analyst ratings. Those are brokerage-derived; this project publishes only public-sector data.
• No investor-type flows (foreign / institutional / retail).
• No sector classification yet.
• Filing explanations are written in Korean. Field names and structure are English-friendly; the prose is not translated.

This site publishes public data as fact. It is not investment advice and does not recommend buying or selling any security. Source: Financial Services Commission open data portal (prices) and DART, the Financial Supervisory Service filing system.

본 페이지는 공공데이터 사실 제공이며 투자 권유가 아닙니다. 특정 종목의 매수·매도를 권하지 않습니다.