Updated March 202610 frameworks · 10 platforms · 3 persona libraries · testing & security tools

Every AI Agent Framework.
One Page. Our Honest Take.

We build AI agents for a living. This is the reference we wish existed when we started — no hype, no affiliate links, just what works and when to use it.

Filter by your language or use case. Each entry has our take on when it shines and when to pick something else.

Language
Type

10 frameworks

LangGraph

by LangChain
26k+PythonTypeScript

Graph-based agent workflows with state management, streaming, and human-in-the-loop support. Pairs with LangSmith for observability.

Best forProduction pipelines that need durable execution, state, and monitoring.
Skip ifYou want something lightweight or your team isn't comfortable with graph abstractions.
Rock-solid for complex multi-step workflows. The learning curve pays off at scale.
pip install langgraph

OpenClaw

by Peter Steinberger (OpenSource)
300k+Node.js

Fastest growing repository on GitHub. Ever. Full agent runtime with workspace management, multi-channel messaging (Telegram, Discord, WhatsApp, Slack), skill system, and sub-agent orchestration.

Best forPersonal AI assistants. Agents that need to interact across messaging platforms. Privacy-first setups.
Skip ifYou're building a SaaS product — this is more 'agent OS' than 'agent SDK'.
We run our entire operation on it. It's what powers this page being written.

NemoClaw

by NVIDIA + OpenClaw
12k+Node.js

NVIDIA's enterprise security layer for OpenClaw. Adds sandboxed execution (OpenShell), network policy enforcement, filesystem isolation, and privacy-aware inference routing. Installs with a single command on top of any OpenClaw setup.

Best forOrganizations that need OpenClaw's agent capabilities with enterprise security controls, data residency, and compliance.
Skip ifYou're running OpenClaw for personal use and don't need enterprise governance.
This is what makes OpenClaw viable for business. We deploy and manage NemoClaw for clients on Canadian infrastructure.
nemoclaw install

Dify

by LangGenius
130k+PythonTypeScript

Full visual platform for AI workflows. Drag-and-drop pipeline editor, built-in RAG, prompt management, and agent orchestration. Self-hostable.

Best forNon-technical teams. Rapid prototyping. Teams that want a platform, not a library.
Skip ifYou need deep customization or your engineers prefer code.
Unbeatable for demos and MVPs. We use it to prototype before building custom.

OpenAI Agents SDK

by OpenAI
20kPython

The production successor to Swarm. Minimal abstractions — agents, tools, and handoffs. Fastest path to shipping if you're already on OpenAI.

Best forGetting something working in a day. Simple agent apps with tool use.
Skip ifYou need model flexibility or don't want OpenAI lock-in.
Great starting point. We often prototype here, then move to LangGraph or CrewAI as complexity grows.
pip install openai-agents

CrewAI

by CrewAI Inc
46kPython

Role-based agent teams. Define agents by role (researcher, writer, analyst), give them tools, and let them collaborate.

Best forRole-based workflows. Teams that think in terms of job functions, not execution graphs.
Skip ifYou need fine-grained control over execution flow.
Fastest time-to-demo for clients. The role metaphor clicks immediately in business conversations.
pip install crewai

Google ADK

by Google
18kPython

Google's agent framework with native Vertex AI integration. Supports Gemini and 20+ other models via LiteLLM. Rich tool ecosystem including MCP.

Best forGoogle Cloud shops. Teams that want mixed-model orchestration.
Skip ifYou're not on GCP and don't plan to be.
Still new (Apr 2025), but the tool interop is impressive. You can use LangChain tools, LlamaIndex, even other agents as tools.
pip install google-adk

Microsoft Agent Framework

by Microsoft
55kPythonC# / Java

AutoGen + Semantic Kernel unified into one framework. Azure-native with the enterprise governance features large orgs actually need. GA Q1 2026.

Best forAzure shops, .NET teams, enterprise compliance requirements.
Skip ifYou're a small team that doesn't need enterprise overhead.
The conversational agent pattern — agents talking to each other — is genuinely useful for complex reasoning tasks.

smolagents

by HuggingFace
26kPython

Agents that think in code. Minimal abstractions, very Pythonic. If your team lives in notebooks and prefers writing code over configuring YAML, this is it.

Best forData science teams. Research. Lightweight tool-using agents.
Skip ifYou need production orchestration or non-Python teams.
Delightfully simple. The 'agents write code' paradigm feels natural for technical users.
pip install smolagents

Mastra

by Mastra AI
22kTypeScript

The TypeScript-native agent framework. First-class option if your backend is Node.js and you don't want to maintain a Python service just for agents.

Best forJS/TS teams. Node.js backends.
Skip ifYou're comfortable with Python or need the larger HuggingFace/LangChain ecosystem.
Refreshing to see a first-class TS framework. The ecosystem is smaller but growing fast.
npm install mastra

Managed Platforms & Services

Paid platforms where someone else handles the infrastructure. Ship agents without managing servers.

10 platforms

Lindy

by Lindy AI
7-day free trial + $49.99/mo Pro

Personal AI work assistant you text via iMessage or SMS. Autonomously manages your inbox, drafts replies in your voice, handles meeting scheduling and note-taking across hundreds of integrations.

Best forProfessionals who want a genuine AI EA that handles email, calendar, and task coordination without constant supervision.
Skip ifYou need a team-wide automation platform or want to build custom agent workflows.
The most polished personal agent on the market right now — if you live in email and meetings, it's hard to beat.
AutomationPersonal
Website →

Devin

by Cognition AI
$20/mo base (250 ACUs included)

Autonomous AI software engineer that takes tasks end-to-end — reading codebases, writing code, running tests, debugging, and shipping PRs. Works asynchronously in sandboxed environments.

Best forEngineering teams that want to offload clearly-defined coding tasks, bug fixes, and repo-level investigations.
Skip ifYour work requires deep context judgment or pair-programming style iteration.
Still the most serious autonomous coding agent in production; the price drop from $500/mo made it worth trying for any team.
Dev Tools
Website →

Relevance AI

by Relevance AI
Free tier + ~$19/mo Starter

Build and deploy AI agent teams using a low-code visual builder. Agents use tools, browse the web, call APIs, and work together on sales, support, and ops workflows.

Best forMid-market teams deploying agent squads for sales outreach, support, and research without heavy engineering lift.
Skip ifYou need a simple one-agent setup — the multi-agent framework adds complexity that's overkill for straightforward automations.
One of the most production-ready agent platforms for non-engineers; the team-of-agents model is genuinely novel.
AutomationEnterprise
Website →

Voiceflow

by Voiceflow
Free tier + $60/mo Pro

Design, build, and deploy customer-facing AI agents across chat, voice, and web. Balances deterministic conversation flows with agentic playbooks.

Best forAgencies and product teams building customer-facing AI agents that need a mix of scripted flows and autonomous LLM responses.
Skip ifYour use case is internal automation or you don't need multi-channel customer conversation management.
The go-to for production customer experience agents — not the flashiest, but battle-tested by real enterprise deployments.
VerticalEnterprise
Website →

CrewAI AMP

by CrewAI
Free Basic + $25/mo Professional

Managed cloud platform on top of the open-source CrewAI framework. Adds a visual editor, agent lifecycle management, tracing, guardrails, and enterprise deployment.

Best forEngineering teams already using CrewAI who want to productionize multi-agent workflows without DIY infra.
Skip ifYou don't have engineering resources — AMP assumes comfort with agent design concepts.
The cleanest bridge from open-source experimentation to real production.
Dev ToolsEnterprise
Website →

Retell AI

by Retell AI
Pay-as-you-go from $0.07+/min

Build and deploy AI voice agents for inbound and outbound phone calls. Handles customer service, appointment scheduling, lead qualification with real-time speech and interruption handling.

Best forBusinesses running high-volume inbound support or outbound dialing campaigns.
Skip ifYour use case is text-based chat or internal automation — Retell is purpose-built for voice telephony.
Best-in-class voice agent platform right now; the per-minute pricing model is refreshingly transparent.
VerticalAutomation
Website →

Sierra

by Sierra AI
Enterprise only, outcome-based pricing

AI customer experience agents for large enterprises. Outcome-based pricing tied to resolved conversations rather than compute. Used by major consumer brands for tier-1 support.

Best forEnterprise CX teams wanting a fully managed, brand-safe AI agent for high-volume customer support.
Skip ifYou're not at enterprise scale — Sierra doesn't do self-serve.
Outcome-based pricing is the right model for this category; you only pay for success.
EnterpriseVertical
Website →

Agentforce

by Salesforce
~$2/conversation, Enterprise agreements

Salesforce's native AI agent platform. Deploy autonomous agents across sales, service, marketing, and commerce — all grounded in CRM data.

Best forSalesforce-native organizations wanting agents deeply integrated with their CRM data.
Skip ifYou're not already a Salesforce customer.
The most credible enterprise agent play because it has real data access.
EnterpriseVertical
Website →

Gumloop

by Gumloop
Free plan + $37/mo Solo

No-code AI automation platform with a visual node-based editor. Connect tools, LLMs, and subflows to build agents for marketing, data, and ops workflows.

Best forMarketing and ops teams who want to build complex AI pipelines without writing code but need more power than Zapier.
Skip ifYou want a chat-first agent interface — Gumloop is workflow-first.
The best Zapier replacement for teams that actually want AI doing the thinking, not just the routing.
AutomationDev Tools
Website →

Stack AI

by Stack AI
Free (500 runs/mo) + Enterprise custom

Enterprise AI agent builder with no-code and low-code interfaces. SOC 2, HIPAA, GDPR compliant with on-prem and VPC deployment options.

Best forEnterprise teams in regulated industries that need AI agents with strict data governance.
Skip ifYou want a quick-start product — Stack AI's real tier is enterprise-only.
Not the sexiest UI but one of the few platforms that can genuinely say yes to a hospital's compliance checklist.
EnterpriseDev Tools
Website →

Persona & Skill Libraries

Pre-built agent personas and design skills. Don't start from scratch.

Agency Agents

51 personas

51 pre-built agent personas — frontend dev, backend dev, security engineer, growth hacker, community manager, and more. Drop-in SOUL.md files compatible with OpenClaw, Claude Code, and similar workspace-based tools.

Great starting point for persona design. Browse even if you don't use them directly.
GitHub →

Impeccable

18 commands

Frontend design skill for AI coding tools. Commands like /distill (simplify UI), /colorize (brand colors), /animate, and /delight. Makes vibe-coded UIs look intentional instead of generic.

Install this if you're using Claude Code or Cursor for frontend work. The difference is noticeable.
GitHub →

Google ADK Skills

Google

Development skills covering APIs, coding patterns, deployment, and evaluation. Works with Gemini CLI, Claude Code, and Cursor.

Useful reference for structuring your own dev skills.
GitHub →

Testing, Security & Memory

The tooling that keeps agents from going off the rails.

Testing & Security

PromptFoo

Unit testing + red teaming for LLM prompts and agents. Compare prompts across models, run automated security scans, and integrate with CI/CD. Acquired by OpenAI in Mar 2026 — stays open source.

npx promptfoo@latest init
Every production AI app should run PromptFoo before shipping. We use it for our own agents.
Context & Memory

OpenViking

ByteDance's context database for agents. Tiered loading (L0/L1/L2) dramatically reduces token consumption. Filesystem-based with auto-compression and self-evolving memory.

Watch this one. The tiered loading concept is the right direction for cost-conscious agent deployments.
Context & Memory

Mem0

Memory layer for AI agents. Persistent memory across sessions, user preference tracking, and conversation history management.

Useful if your agent needs to remember users across conversations without building your own memory system.

Quick Picks

Tell us your situation. We'll tell you what to use.

I just want something working todayOpenAI Agents SDK
I need to impress a client in a demoCrewAI + Dify
Building for production at scaleLangGraph + LangSmith
My team only writes TypeScriptMastra
We need enterprise governanceMicrosoft Agent Framework
Full control on my own hardwareOpenClaw
OpenClaw but with enterprise securityNemoClaw
Google Cloud is our stackGoogle ADK
I need to test what I've builtPromptFoo

Maintained by GTA Labs · Toronto · Updated March 2026

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