The best AI agent builders let you create working agents without starting from scratch — some no-code, some for developers, some enterprise. Here's the honest rundown of which to use and when.
Whether you want drag-and-drop or full code control, these ten cover every level.
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Top 3 Picks At A Glance
- 🥇 Hermes — best operator-friendly OS
- 🥈 Relevance AI — best no-code builder
- 🥉 CrewAI — best code framework
The 10 Best AI Agent Builders
1 — Hermes
Hermes is an agent OS built for operators — create focused agents with skills and a dashboard, then run them as a service.
Best if your goal is making money with agents, not just building them.
Best for: Operators who want to build & sell. Maker: Julian Goldie. Price: Inside AIPB.
2 — Relevance AI
Build and deploy agent teams visually, no code needed.
The most polished no-code builder for business use.
Best for: No-code agent teams. Maker: Relevance AI. Price: Free / paid.
3 — Lindy
Spin up assistants for email, scheduling, and ops without code.
Great for personal/business automation.
Best for: No-code assistants. Maker: Lindy. Price: Paid.
Want to make money with these? The build-and-sell system is inside AI Profit Boardroom. → Learn how
4 — n8n
Visual automation that can run agent logic across apps.
Best for unlimited self-hosted builds.
Best for: Low-code automation + agents. Maker: n8n. Price: Free / paid.
5 — CrewAI
Orchestrate crews of agents in code.
The go-to framework for custom multi-agent systems.
Best for: Developers (Python). Maker: CrewAI. Price: Free (open source).
6 — LangGraph
Build robust, multi-step stateful agents.
Best for developers who need control and reliability.
Best for: Stateful agents (code). Maker: LangChain. Price: Free / paid.
7 — AutoGen
Microsoft's framework for multi-agent conversations.
Strong for experimental multi-agent setups.
Best for: Multi-agent research/builds. Maker: Microsoft. Price: Free (open source).
8 — Flowise
Drag-and-drop builder for LLM agents, self-hosted.
Best free visual option for the technically curious.
Best for: Open visual building. Maker: Flowise. Price: Free (open source).
9 — Vertex AI Agent Builder
Google Cloud's enterprise agent platform.
Best for teams already on Google Cloud.
Best for: Enterprise on GCP. Maker: Google Cloud. Price: Paid.
10 — Copilot Studio
Microsoft's low-code builder for enterprise agents.
Best for Microsoft 365 organisations.
Best for: Enterprise low-code. Maker: Microsoft. Price: Paid.
How To Choose A Builder
Want to build and sell agents? Hermes. No-code for business? Relevance AI or Lindy. Developer? CrewAI or LangGraph. Free and visual? Flowise or n8n. Enterprise? Vertex or Copilot Studio.
Why You Can Trust This
I run these exact systems across a network of AI sites that now pull around 290,000 Google impressions a month and rank #1 for competitive terms. I'm Julian Goldie — I built a 7-figure SEO agency, wrote two best-selling books, and 70,000+ people follow my AI work on YouTube. Everything here is what I actually run, not theory.
Frequently Asked Questions
What's the easiest AI agent builder for beginners?
Relevance AI or Lindy (no-code). For building agents as a business, Hermes with its guided training.
Are there free agent builders?
Yes — n8n, CrewAI, Flowise, and AutoGen are all free/open-source.
Do I need to code?
No — Hermes, Relevance AI, Lindy, Make and Flowise are no/low-code. CrewAI and LangGraph are for developers.
Which builder makes money?
The one you actually ship with. Hermes is built around selling agent outcomes, which is where the money is.
The Verdict
For most people who want to build agents and earn from them, Hermes is the pick. Developers should grab CrewAI or LangGraph; no-coders, Relevance AI.
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