LangChain is an engineering platform and open-source framework for developers to build, test, and deploy reliable AI agents and applications.

Pydantic is a data validation, observability (Logfire), and AI agent framework for Python, TypeScript, and Rust, enabling robust application development.

The Product Compass is an AI & PM newsletter providing actionable tips, resources, and playbooks for Product Managers focused on AI product management.

Composio is an integration layer for AI agents, providing SDKs and managed auth to connect LLMs with 10,000+ external tools like Slack, GitHub, and Notion.

PromptEngineering.org offers prompt engineering tutorials, resources, and free courses for professionals seeking high-impact AI insights and career advancement.

Restack is a backend framework for engineers to build, launch, and scale accurate and reliable autonomous AI agents and long-running workflows.

FastGPT is a free, open-source Enterprise AI Agent Builder providing Agentic RAG retrieval, AI-powered workflows, and MCP tools for easy AI Agent creation.

SmythOS is an open-source Agent Operating System for rapidly launching, scaling, and auditing complex AI agent workflows via a visual builder and runtime.

VoltAgent is an open-source TypeScript AI Agent framework for building, customizing, and orchestrating enterprise-grade AI agents with observability.

AI Agent Toolkit is a comprehensive resource for AI agent frameworks, tools, and research.

Cheshire Cat AI is an AI agent framework for building custom AI agents and is used by developers.