Agent frameworks AI tools

A

Agno

Free

Agent frameworks

Open-source agent framework and high-performance runtime for building multi-agent systems at scale

Free tier at $0/month (unlimited usage & retention, local control plane). Pro at $150/month (1 live AgentOS connection, 3 team seats, email support). Add-ons: $30/mo per additional seat, $95/mo per additional live connection, $300/mo for SAML SSO. Enterprise at custom pricing.

A

AutoGen

Free

Agent frameworks

Build multi-agent AI applications with conversable, customizable agents powered by LLMs

C

CAMEL-AI

Free

Agent frameworks

Finding the Scaling Laws of Agents

C

Composio

Free

Agent frameworks

Give your AI secure access to 1,500+ apps in minutes

Free tier includes 100,000 actions per month. Enterprise tier available with SSO, governance, and audit controls.

C

CrewAI

Free

Agent frameworks

The open platform that accelerates enterprise agent adoption at scale

Free tier includes visual editor, AI copilot, GitHub integration, and 50 workflow executions/month. Enterprise tier is custom-priced and includes governance (SSO, RBAC, PII redaction), dedicated VPC deployment, onboarding, and forward-deployed engineering.

D

Dify

Free

Agent frameworks

Build, deploy, and manage autonomous AI agents and RAG pipelines — effortlessly at any scale.

Free Sandbox tier; Professional at $590/workspace/year (or ~$49/mo); Team at $1,590/workspace/year; Enterprise with private deployment available. Annual billing saves 17%.

D

DSPy

Free

Agent frameworks

The framework for programming—not prompting—language models

Open-source Python library, free to install via pip under the MIT license.

F

Flowise

Free

Agent frameworks

Open source visual platform for building AI agents and LLM-powered applications

Free tier at $0/month (2 Flows, 100 Predictions/month, 5MB Storage); Starter at $35/month (Unlimited Flows, 10,000 Predictions/month, 1GB Storage); Pro at $65/month (50,000 Predictions/month, 10GB Storage, 5 Users + $15/user/month)

H

Haystack

Free

Agent frameworks

The open-source AI framework for production-ready agents, RAG & context engineering

Open-source framework is free; Enterprise support and platform available with flexible pricing based on company size.

L

Langflow

Free

Agent frameworks

Low-code AI builder for agentic and RAG applications

Free cloud account available; enterprise-grade cloud platform also offered. Self-hosting (OSS) is also an option.

L

Letta

Free

Agent frameworks

An AI research lab building self-improving agents that remember everything and learn continuously.

Free plan ($0/mo, 3–5 stateful agents, 5 MiB storage, BYOK); Pro plan ($20/mo, up to 20 agents, 50 MiB storage, Letta Auto quota); API Plan ($20/mo, unlimited agents, usage-based); Teams Pro ($20/seat/mo); Enterprise (custom pricing).

M

Mastra

Free

Agent frameworks

Build AI agents. Build, observe, and improve agents that run for days with Mastra, the leading TypeScript agent framework.

Starter: $0/mo (100K observability events, 24 CPU hrs, 15-day retention); Teams: $250/mo (1M events, 250 CPU hrs, 6-month retention, SSO, SOC 2); Enterprise: custom pricing. Self-hosted Apache 2.0 open-source option also available.

O

OpenHands

Free

Agent frameworks

The Open Platform for Cloud Coding Agents

Free tier (open source, self-hosted, MIT); Teams at $499/mo for up to 10 users (+$50/mo per additional seat, capped at 5,000 sessions/month); Enterprise at custom pricing with unlimited seats and uncapped usage.

P

Pydantic AI

Free

Agent frameworks

GenAI Agent Framework, the Pydantic way — build production-grade AI apps with confidence

S

Stack AI

Free

Agent frameworks

Orchestrate enterprise AI agents with security, governance, and 100+ integrations — in minutes.

Free trial available · Enterprise plans via demo/contact