| 1 |
LiteLLM
LLM Gateways
|
271,946,590 |
58,733 |
|
LLM Gateways
AI and Agents
AI & ML
|
→ |
|
Call 100+ LLMs using OpenAI format.
|
|
|
|
| 2 |
langchain
Orchestration
|
186,768,790 |
146,333 |
|
Orchestration
AI and Agents
AI & ML
|
→ |
|
Building applications with LLMs through composability.
|
|
|
|
| 3 |
transformers
Pre-trained Models
|
120,010,616 |
165,958 |
|
Pre-trained Models
AI and Agents
AI & ML
|
→ |
|
A framework that lets you easily use pre-trained transformer models for NLP, vision, and audio tasks.
|
|
|
|
| 4 |
langgraph
Orchestration
|
49,034,954 |
41,646 |
|
Orchestration
AI and Agents
AI & ML
|
→ |
|
Low-level orchestration framework for building stateful, long-running LLM agents.
|
|
|
|
| 5 |
sglang
LLM Inference and Serving
|
43,169,244 |
35,956 |
|
LLM Inference and Serving
AI and Agents
AI & ML
|
→ |
|
A high-performance serving framework for large language models and multimodal models.
|
|
|
|
| 6 |
claude-agent-sdk
Vendor Agent SDKs
|
28,585,637 |
8,096 |
|
Vendor Agent SDKs
AI and Agents
AI & ML
|
→ |
|
Anthropic's Python SDK for building AI agents on Claude Code's harness — custom tools, in-process MCP servers, hooks.
|
|
|
|
| 7 |
instructor
Data Layer
|
21,204,510 |
13,891 |
|
Data Layer
AI and Agents
AI & ML
|
→ |
|
A library for extracting structured data from LLMs, powered by Pydantic.
|
|
|
|
| 8 |
openai-agents
Vendor Agent SDKs
|
20,543,051 |
29,433 |
|
Vendor Agent SDKs
AI and Agents
AI & ML
|
→ |
|
OpenAI's framework for building and managing AI agents.
|
|
|
|
| 9 |
crewai
Orchestration
|
15,666,182 |
58,550 |
|
Orchestration
AI and Agents
AI & ML
|
→ |
|
A framework for orchestrating role-playing autonomous AI agents for collaborative task solving.
|
|
|
|
| 10 |
peft
Fine-tuning
|
8,723,488 |
21,673 |
|
Fine-tuning
AI and Agents
AI & ML
|
→ |
|
A library for parameter-efficient fine-tuning of large pretrained models.
|
|
|
|
| 11 |
pydantic-ai
Orchestration
|
7,165,957 |
19,936 |
|
Orchestration
AI and Agents
AI & ML
|
→ |
|
A Python agent framework for building generative AI applications with structured schemas.
|
|
|
|
| 12 |
diffusers
Image and Video Generation
|
5,631,413 |
34,511 |
|
Image and Video Generation
AI and Agents
AI & ML
|
→ |
|
A library that provides pre-trained diffusion models for generating and editing images, audio, and video.
|
|
|
|
| 13 |
openai-whisper
Speech
|
4,995,020 |
109,106 |
|
Speech
AI and Agents
AI & ML
|
→ |
|
A general-purpose automatic speech recognition model trained on 680k hours of multilingual and multitask supervised data.
|
|
|
|
| 14 |
dspy
Prompt Optimization
|
4,946,344 |
38,023 |
|
Prompt Optimization
AI and Agents
AI & ML
|
→ |
|
A framework for programming, not prompting, language models.
|
|
|
|
| 15 |
llama-index
Data Layer
|
4,593,589 |
52,163 |
|
Data Layer
AI and Agents
AI & ML
|
→ |
|
A data framework for your LLM application.
|
|
|
|
| 16 |
vllm
LLM Inference and Serving
|
2,929,385 |
91,754 |
|
LLM Inference and Serving
AI and Agents
AI & ML
|
→ |
|
A high-throughput and memory-efficient inference and serving engine for LLMs.
|
|
|
|
| 17 |
mem0
Data Layer
|
2,565,861 |
65,289 |
|
Data Layer
AI and Agents
AI & ML
|
→ |
|
An intelligent memory layer for AI agents enabling personalized interactions.
|
|
|
|
| 18 |
gTTS
Speech
|
1,808,780 |
2,635 |
|
Speech
AI and Agents
AI & ML
|
→ |
|
Python library and CLI tool for converting text to speech using Google Translate TTS.
|
|
|
|
| 19 |
unsloth
Fine-tuning
|
1,426,969 |
76,168 |
|
Fine-tuning
AI and Agents
AI & ML
|
→ |
|
A library for faster LLM fine-tuning and training with reduced memory usage.
|
|
|
|
| 20 |
mlx-lm
LLM Inference and Serving
|
735,828 |
7,013 |
|
LLM Inference and Serving
AI and Agents
AI & ML
|
→ |
|
Run and fine-tune large language models on Apple Silicon with MLX.
|
|
|
|
| 21 |
openviking
Data Layer
|
439,907 |
37,239 |
|
Data Layer
AI and Agents
AI & ML
|
→ |
|
A context database for AI agents that unifies memory, resources, and skills.
|
|
|
|
| 22 |
funasr
Speech
|
328,847 |
20,323 |
|
Speech
AI and Agents
AI & ML
|
→ |
|
Industrial-grade speech recognition toolkit with 170x realtime speed, 50+ languages, speaker diarization, and emotion detection.
|
|
|
|
| 23 |
hermes-agent
Personal Assistants
|
183,791 |
245,513 |
|
Personal Assistants
AI and Agents
AI & ML
|
→ |
|
An adaptive personal AI assistant that grows with you.
|
|
|
|
| 24 |
semantica
Data Layer
|
20,238 |
12,872 |
|
Data Layer
AI and Agents
AI & ML
|
→ |
|
A graph-native context and knowledge layer for AI agents with reasoning, provenance, and governance.
|
|
|
|
| 25 |
axolotl
Fine-tuning
|
10,874 |
12,472 |
|
Fine-tuning
AI and Agents
AI & ML
|
→ |
|
A framework for fine-tuning and post-training large language models.
|
|
|
|
| 26 |
kittentts
Speech
|
2,257 |
15,454 |
|
Speech
AI and Agents
AI & ML
|
→ |
|
Lightweight ONNX text-to-speech library with small CPU-friendly models.
|
|
|
|
| 27 |
vibevoice
Speech
|
543 |
54,285 |
|
Speech
AI and Agents
AI & ML
|
→ |
|
A family of open-source voice AI models from Microsoft for text-to-speech and long-form speech recognition.
|
|
|
|
| 28 |
trailofbits-skills
Agent Skills
|
Not on PyPI |
7,079 |
|
Agent Skills
AI and Agents
AI & ML
|
→ |
|
Python-friendly security skills for auditing, testing, and safer backend development.
|
|
|
|
| 29 |
sentry-skills
Agent Skills
|
Not on PyPI |
991 |
|
Agent Skills
AI and Agents
AI & ML
|
→ |
|
Python-focused engineering skills for code review, debugging, and backend workflows.
|
|
|
|
| 30 |
django-ai-plugins
Agent Skills
|
Not on PyPI |
139 |
|
Agent Skills
AI and Agents
AI & ML
|
→ |
|
Django backend agent skills for Django, DRF, Celery, and Django-specific code review.
|
|
|
|