Pydantic Python Packages

pydantic

Data validation using Python type hints

877.2M 29K 3K

pydantic-core

Data validation using Python type hints

845M 29K 3K

fastapi

FastAPI framework, high performance, easy to learn, fast to code, ready for production

404.6M 103K 10K

pydantic-settings

Settings management using pydantic

376.6M 1K 219

jiter

Fast iterable JSON parser.

328.1M 558 69

langchain

The agent engineering platform.

168.2M 148K 25K

langchain-core

The agent engineering platform.

145.3M 148K 25K

openapi-pydantic

Modern, type-safe OpenAPI schemas in Python using Pydantic 1.8+ and 2.x

54.6M 124 23

pydantic-extra-types

Extra Pydantic types.

54.5M 338 105

langgraph

Build resilient agents.

46.7M 43K 7K

langgraph-sdk

Build resilient agents.

44.5M 43K 7K

langgraph-checkpoint

Build resilient agents.

43.2M 43K 7K

ormsgpack

MessagePack serialization library for Python derived from orjson, written in Rust using PyO3

43.2M 402 28

langgraph-prebuilt

Build resilient agents.

42.3M 43K 7K

langchain-openai

The agent engineering platform.

37.9M 148K 25K

langchain-text-splitters

The agent engineering platform.

37M 148K 25K

json-repair

Repair malformed JSON from LLMs, APIs, logs, and user input in Python.

32.3M 5K 221

pydantic-ai-slim

How Python does AI. Agents, realtime voice, image generation, embeddings. Every model, every interface, typed end to end.

25.4M 21K 3K

pydantic-graph

How Python does AI. Agents, realtime voice, image generation, embeddings. Every model, every interface, typed end to end.

25.2M 21K 3K

langfuse

🪢 Langfuse Python SDK

24.8M 501 365

sqlmodel

SQL databases in Python, designed for simplicity, compatibility, and robustness.

24.2M 18K 893

langchain-anthropic

The agent engineering platform.

18.6M 148K 25K

langchain-classic

The agent engineering platform.

15M 148K 25K

logfire

AI observability platform for production LLM and agent systems.

14M 5K 313