Tag #agents
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 Agents SDK
OpenAI
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
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
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