LLM Application Frameworks
Frameworks for building LLM applications — LangChain-class tooling.
148 projects
See methodology for ranking rules; order uses public GitHub metrics within this scenario.
| Rank | Project | Stars | Forks | Updated | License |
|---|---|---|---|---|---|
| 21 |
DB-GPT
open-source agentic AI data assistant for the next generation of AI + Data products. |
19.8K | 2.9K | 08/28/26 | MIT |
| 22 |
notebooklm-py
Unofficial Python API and agentic skill for Google Gemini Notebook. Full programmatic access to NotebookLM's features—including capabilities the web UI doesn't expose—via Python, CLI, and AI agents like Claude Code, Codex, and OpenClaw. |
19.0K | 2.6K | 08/29/26 | MIT |
| 23 |
outlines
Structured Outputs |
15.7K | 868 | 08/28/26 | Apache-2.0 |
| 24 |
aisuite
Simple, unified interface to multiple Generative AI providers |
16.2K | 1.7K | 08/13/26 | MIT |
| 25 |
langchain4j
Java library for building LLM-powered applications with unified APIs for LLM providers and vector stores. |
13.0K | 2.5K | 08/28/26 | Apache-2.0 |
| 26 |
instructor
structured outputs for llms |
13.8K | 1.2K | 08/29/26 | MIT |
| 27 |
open-saas
A free, open-source SaaS boilerplate powered by Wasp, with AI-ready features, auth, payments, and one-command deploy. |
15.7K | 1.9K | 08/06/26 | MIT |
| 28 |
typescript-sdk
The official TypeScript SDK for Model Context Protocol servers and clients |
13.3K | 2.1K | 08/29/26 | Other |
| 29 |
chainlit
Build Conversational AI in minutes ⚡️ |
12.4K | 1.7K | 08/26/26 | Apache-2.0 |
| 30 |
eino
The ultimate LLM/AI application development framework in Go. |
12.9K | 1.1K | 08/29/26 | Apache-2.0 |
| 31 |
txtai
💡 All-in-one AI framework for semantic search, LLM orchestration and language model workflows |
12.9K | 886 | 08/27/26 | Apache-2.0 |
| 32 |
spring-ai
An Application Framework for AI Engineering |
9.4K | 2.9K | 08/28/26 | Apache-2.0 |
| 33 |
llm
Access large language models from the command-line |
12.4K | 966 | 08/22/26 | Apache-2.0 |
| 34 |
spring-ai-alibaba
Agentic AI Framework for Java Developers |
10.7K | 2.4K | 08/25/26 | Apache-2.0 |
| 35 |
cocoindex
Incremental engine for long horizon agents 🌟 Star if you like it! |
11.4K | 892 | 08/28/26 | Apache-2.0 |
| 36 |
promptflow
Build high-quality LLM apps - from prototyping, testing to production deployment and monitoring. |
11.2K | 1.1K | 08/26/26 | MIT |
| 37 |
tambo
Generative UI SDK for React |
11.2K | 562 | 08/29/26 | MIT |
| 38 |
mcp-use
The fullstack MCP framework to develop MCP Apps for ChatGPT / Claude & MCP Servers for AI Agents. |
10.5K | 1.4K | 08/29/26 | MIT |
| 39 |
PaddleNLP
Easy-to-use and powerful LLM and SLM library with awesome model zoo. |
13.0K | 3.0K | 05/23/26 | Apache-2.0 |
| 40 |
LangGPT
A structured, reusable prompt design framework enabling anyone to create high-quality prompts for large language models through modular templates and meta-prompting. |
12.5K | 945 | 07/16/26 | Apache-2.0 |