A collective list of free APIs
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Updated
Mar 18, 2026 - Python
Open source is a term denoting that a product includes permission to use its source code, design documents, or content. It most commonly refers to the open source model, in which open source software or other products are released under an open source license as part of the open source-software movement. Use of the term originated with software, but has expanded beyond the software sector to cover other open content and forms of open collaboration.
A collective list of free APIs
The agent engineering platform
Build resilient language agents as graphs.
An open-source RAG-based tool for chatting with your documents.
The open source AI engineering platform for agents, LLMs, and ML models. MLflow enables teams of all sizes to debug, evaluate, monitor, and optimize production-quality AI applications while controlling costs and managing access to models and data.
🕵️♂️ Collect a dossier on a person by username from 3000+ sites
Awesome list of open-source startup alternatives to well-known SaaS products 🚀
Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations, and production-ready dashboards.
Open Source DeepWiki: AI-Powered Wiki Generator for GitHub/Gitlab/Bitbucket Repositories. Join the discord: https://discord.gg/gMwThUMeme
Knowledge Engine for AI Agent Memory in 6 lines of code
基于 Playwright 和AI实现的闲鱼多任务实时/定时监控与智能分析系统,配备了功能完善的后台管理UI。帮助用户从闲鱼海量商品中,找到心仪产品。
A list of Free and Open Source Software (FOSS) for Android – saving Freedom and Privacy.
List of "only yours" cloud services for everyday needs 🏴
A beautiful, powerful, self-hosted rom manager and player.
Open Source HR and Payroll Software
Open-source observability for your GenAI or LLM application, based on OpenTelemetry
Securely and anonymously share files, host websites, and chat with friends using the Tor network
Mycroft Core, the Mycroft Artificial Intelligence platform.