Agent frameworks & automation

Libraries and platforms for building and running your own agents.

ToolFree tierBest for
LangChain / LangGraph + LangSmithYesBuilding custom, stateful agents in code and tracing, evaluating and deploying them.
CrewAIYesOrchestrating teams ("crews") of role-based agents in Python.
OpenAI Agents SDKYesA lightweight, code-first way to build multi-agent workflows.
n8nFree trial of n8n Cloud (14 days on Business, no card required)Visual workflow automation with AI agents, priced per workflow run, not per step.
Frameworksfree tieropen source

LangChain / LangGraph + LangSmith

Building custom, stateful agents in code and tracing, evaluating and deploying them.

verified 2026-11-02
Frameworksfree tieropen source

CrewAI

Orchestrating teams ("crews") of role-based agents in Python.

verified 2026-11-02
Frameworksfree tieropen source

OpenAI Agents SDK

A lightweight, code-first way to build multi-agent workflows.

verified 2026-11-02
Frameworks

n8n

Visual workflow automation with AI agents, priced per workflow run, not per step.

verified 2026-11-02