
HEESEOK HONG
Fintech CTO/CISO. I build reliable data actors for Korean sources.
Joined August 2026
ACTOR STATS
4 public Actors
8 total users
1 monthly user
>99% runs succeeded
I'm a fintech CTO/CISO. Before that I ran IT at one of Korea's largest e-commerce platforms, which is where I learned how much useful Korean data sits locked behind Korean field names, Korean codes, and Korean-only documentation.
That's what I build here: actors that take Korean sources and hand you typed, English-labelled JSON.
How I work
- Official APIs only. No scraping behind logins, no bypassing bot protection, no personal data. Korean courts have ruled both ways on crawling — I stay on the safe side of that line, and so do you.
- It works on the first Run. Every input has a sensible default. Press Run, get data.
- English field names, real numbers. Korean sources hand you
"514,531,948,000,000"as a string and-for null. You get514531948000000andnull. - Honest about limits. If a source doesn't expose something, the README says so instead of quietly returning nothing.
Currently shipping
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DART Korea Filings & Financials — disclosures and financial statements for 119,000 Korean companies across KOSPI, KOSDAQ and KONEX
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Korea Apartment Transactions — every apartment sale in the government register, in real KRW
More Korean sources on the way. Found a bug, or need a field I'm not returning? Open an issue on the actor — I read them.