n2
NH투자증권 PLUG Open API 파이썬 SDK — 샘플·종목마스터 파서·AI 규칙 (나무·N2 공용)
Open, correctly-licensed JLPT N5–N1 dataset — vocabulary, kanji & example sentences as JSON, CSV & SQLite.
A python library for creating dynamic N² (N-squared) charts to visualize complex systems interactions for engineering and project management.
