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Tag #agents

LangChain

LangChain

LangChain

The original LLM-app framework — standard model/tool interfaces, hundreds of integrations, and the create_agent prebuilt that compiles to a LangGraph agent

langchain-core==1.5.02026-07-21Python / JSMIT
142.4k Completely free Open source

OpenAI's lightweight SDK for agents with tools, handoffs, and guardrails

v0.18.32026-07-17PythonMIT
28.1k Completely free Open source
Pydantic AI

Pydantic AI

Pydantic

Type-safe agent framework from the Pydantic team — structured, validated results with any model

v2.16.02026-07-23PythonMIT
18.7k Completely free Open source
Zep

Zep

Zep

Long-term memory layer for agents, building a temporal knowledge graph from conversations

No updates in 6+ monthszep-crewai-v1.1.12025-09-11PythonApache-2.0
4.8k Open source Free tier Paid