Directory / Agent Tools

CrewAI

Framework/platform for role-based multi-agent 'crews'.

Agent ToolsOpen sourceFree option
Visit site
CategoryAgent Tools
PricingOpen source; paid cloud tiers(summary; confirm on vendor site)
Free pathOpen-source framework; Basic cloud plan free
Official sitehttps://www.crewai.comLink last checked 2026-10-13

Research notes

How we research

Listed because it fits the Agent Tools category. Listings are free; sponsored placements, if any, are labeled and never change rankings.

Alternatives

OpenClaw

Agent Tools

Open-source personal AI agent that runs on your machine and connects to chat apps.

Free, open source (model costs extra)Open sourceFree option

Open-source self-improving agent from Nous Research with skills and memory.

Free, open source; optional hosted plans from $20/moOpen sourceFree option

LangGraph

Agent Tools

Framework for building stateful, controllable multi-step agents.

Open source; paid LangSmith/PlatformOpen sourceFree option

n8n

Agent Tools

Visual workflow automation with AI agent nodes; self-host or cloud.

Free self-host; cloud from ~€20/moOpen sourceFree option

Lightweight Python SDK for agents with tools, handoffs and guardrails.

Free SDK; pay per API usageOpen sourceFree option

Claude Code

Agent Tools

Anthropic's agentic coding tool for terminal and IDE.

Included with Claude paid plans / API

LlamaIndex

Agent Tools

Framework for document agents and RAG over PDFs/specs.

Open source; paid LlamaCloudOpen sourceFree option

Microsoft's open-source multi-agent framework.

Free, open sourceOpen sourceFree option

Pydantic AI

Agent Tools

Python agent framework from the Pydantic team with typed outputs.

Free, open source (optional Logfire has free tier)Open sourceFree option

Google's open-source framework for building and deploying agents.

Free, open sourceOpen sourceFree option

Mastra

Agent Tools

TypeScript agent framework with hosted platform.

Framework free (Apache 2.0); platform Starter $0/mo, Teams $250/mo + usage, Enterprise contactOpen sourceFree option

Open-source framework for RAG pipelines and agents.

Free, open source; deepset Studio $0 tier; paid enterpriseOpen sourceFree option

Dify

Agent Tools

Open-source visual builder for LLM apps and agent workflows.

Sandbox free; Professional $590/workspace/yr; Team $1,590/workspace/yr; self-host freeFree option

Microsoft's open-source SDK for AI agents in C#, Python, Java.

Free, open sourceOpen sourceFree option