open-data

cn-math-taxonomy

+2.3k

数学（小学到高中）、英语（三年级到高中）、初中物理的知识图谱：1644 个知识点、2403 条先修边、6723 道题，对齐课标，附自适应前置诊断。

datasets

+100

A compilation of 125+ free datasets for use in social science, applied microeconomics, data visualization, etc.

public-api-lists

+67

A curated list of free public APIs — searchable, community-maintained, with a free JSON API.

hudl/open-data

+25

Free football data from StatsBomb

free-exercise-db

+29

Open Public Domain Exercise Dataset in JSON format, over 800 exercises with a browsable public searchable frontend

Akashic

+6

Akashic is an open-source Palantir alternative for connecting, exploring, and analyzing complex data. Fully self-hosted, privacy-first, and requiring no API keys.

OnCo

+4

OnCo: total information dominance on cancer. A public, cited knowledge graph of oncology with a website, JSON API, MCP server and CLI: one page per cancer, treatment, target, trial, institution, person and idea.

Trader-Archives

+5

🏛️ 推特顶级实战派交易员推文公开收录大典 · 剥离噪音，沉淀真金白银实盘认知体系与全量开源数据湖，完全开源免费 by 梭哈.AI

ckan/ckan

+3

CKAN is an open-source DMS (data management system) for powering data hubs and data portals. CKAN makes it easy to publish, share and use data. It powers catalog.data.gov, open.canada.ca/data, data.humdata.org among many other sites.