A collective list of free APIs
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Repository Index
56,139 visible repositories in the index
1–24 of 3,712 · Most stars
:books: Freely available programming books
Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.
- programming
- development
- design
- design-system
The agent that grows with you
A feature-rich command-line audio/video downloader
- youtube-dl
- python
- sponsorblock
- yt-dlp
Public repository for Agent Skills
Translated:octocat: Share interesting, entry-level open source projects on GitHub.
🤗 Transformers: the model-definition framework for state-of-the-art machine learning models in text, vision, audio, and multimodal models, for both inference and training.
- nlp
- natural-language-processing
- pytorch
- pytorch-transformers
Build Agentic workflows, RAG pipelines, with rich AI model and tool support on one collaborative workspace. Deploy on cloud, VPC, or self-hosted, so teams move from prototype to production without rebuilding the stack.
Langflow is a powerful tool for building and deploying AI-powered agents and workflows.
- react-flow
- chatgpt
- large-language-models
- generative-ai
An AI skill that provides design intelligence for building professional UI/UX across multiple platforms.
- ai-skills
- antigravity
- claude
- claude-code
The most powerful and modular diffusion model GUI, api and backend with a graph/nodes interface. The fastest local inference engine in the world.
- stable-diffusion
- pytorch
- ai
- python
Turn any codebase, with its docs, SQL schemas, configs, and PDFs, into a queryable knowledge graph. A /graphify skill for Claude Code, Cursor, Codex, and Gemini CLI: local deterministic AST parsing, every edge explained, no vector store.
- claude-code
- graphrag
- knowledge-graph
- codex
100+ AI Agents, Agent Skills and RAG Apps - Free and Open Source.
TranslatedGenerate HD short videos from a topic or keyword with an automated AI workflow.
- python
- tiktok
- ai-video-generator
- content-creation
TranslatedHello Algo (《Hello 算法》): An animated, illustrated data structures and algorithms tutorial with one-click code running. Supports Simplified Chinese, Traditional Chinese, English, and Japanese, and provides code implementations in Python, Java, C++, C, C#, JS, Go, Swift, Rust, Ruby, Kotlin, TS, Dart, and more
- algorithms
- data-structures
- data-structures-and-algorithms
- dsa
TradingAgents: Multi-Agents LLM Financial Trading Framework
Open-source Python library for AI browser agents, plus Browser Use Cloud: stealth browsers and a hosted agent API.
Robust Speech Recognition via Large-Scale Weak Supervision
Give your AI agent eyes to see the entire internet. Read & search Twitter, Reddit, YouTube, GitHub, Bilibili, XiaoHongShu — one CLI, zero API fees.
- agent-infrastructure
- ai-agent
- ai-search
- automation
Hunt down social media accounts by username across social networks
VoiceStudio is the open-source, fully-local ElevenLabs alternative — voice cloning, voice design, video dubbing, dictation, transcription & audiobook creation in 646 languages.
- tts
- voice-cloning
- voice-generation
- voice-ai
FastAPI framework, high performance, easy to learn, fast to code, ready for production
- python
- json
- swagger-ui
- redoc
🕷️ The BEST Web Scraping framework that handles everything from a single request to a full-scale crawl! Don't be shy, join here: https://discord.gg/EMgGbDceNQ and follow here for daily tips and tricks: https://x.com/Scrapling_dev
- crawler
- crawling
- crawling-python
- playwright