The 10 best AI agent builders in 2026, ranked and reviewed. Honest pros, cons, and pricing from someone who builds AI agents every day.
It's time to build your team of AI agents
I build AI agents all day every day. I've taught tens of thousands of people how to build AI agents on LinkedIn and YouTube, and I've directly helped thousands of customers set up their own AI agents.
In my day job, I'm the founder of a small company, but I'm also the sales team, the marketing team, the HR team, the finance team, the support team, and more. And this is only possible because I have dozens of AI agents working for me! AI agents are not just hype, and they're not just for AI experts. They're real, they're incredibly valuable, and anyone can create one. So now is the time to build your team of AI agents!
To get started, you need to pick which AI agent builder you'll use. In this article, I'll walk you through the 10 best platforms available, freshly updated for May 2026.
TL;DR
If you don't want to read a whole article, here's what you really need to know:
Most people should pick Relay.app. It's the easiest to use, especially for less technical users, and has the best human-in-the-loop controls.
If you want a powerful AI-native canvas for multi-agent orchestration, go with Gumloop.
If you need the widest integration library, go with Zapier.
If you're building AI agents for sales and GTM workflows, check out Relevance AI.
If you need a self-hosted option, or if you're highly technical, choose n8n.
If you want AI agents deeply grounded in your company's internal knowledge, check out Cassidy.
If you're in a regulated industry and need enterprise-grade compliance, look at Stack AI or Tray.
How I evaluated these platforms
Before diving into the rankings, here's what I looked for, and what you should care about too.
Ease of use – A non-technical person should be able to create their first working agent in under 30 minutes without getting frustrated. G2's 2026 data shows ease of use is one of the top factors buyers mention when reviewing AI agent builders, and I weighted it heavily.
Human-in-the-loop controls – This is non-negotiable. AI agents that run without oversight will eventually make expensive mistakes. I evaluated how easy it is to add approval steps, review outputs, and maintain control.
AI model quality and flexibility – The best platforms let you use multiple AI models (OpenAI, Anthropic, Gemini, and more) without managing your own API keys. Multi-model support matters because different models excel at different tasks.
Integrations – The number of integrated tools is important, but it's much more important that the integrations work well. The agent needs to be able to do real work reliably in all of a user's tools.
Multi-agent orchestration – In 2026, single-agent setups aren't enough for complex workflows. I looked at how well each platform supports coordinating multiple specialized agents that hand off work to each other.
Security and governance – Especially important for teams in regulated industries. I looked at compliance certifications (SOC 2, HIPAA, GDPR), data residency options, access controls, and MCP governance.
Trust and reliability – Does it work consistently and predictably on a wide variety of real-world tasks.
For all of these, I combined my personal experience using the products with sentiment from real user reviews on sites like G2 and Product Hunt.
The 10 best AI agent builders in 2026
1.
Relay.app
Relay.app is the easiest way to create a team of AI agents that work for you proactively across over 200 apps. Non-technical users who have struggled with complex tools like Zapier or Make can create reliable AI workflows in minutes just by using plain language. The Relay.app Agent handles everything from creation to analysis, while built-in human-in-the-loop features ensure that you stay in control when the stakes are high.
Product details
Ease of use: Relay.app is designed for teams of all technical abilities to automate in minutes.
AI Agent creation: Use natural language to build and improve complex AI workflows effortlessly.
Human-in-the-loop: Add checkpoints to pause workflows for human approval or data entry when needed.
Collaborative features: Share workflows and app connections across your team for seamless multiplayer automation.
Built-in AI models: Access the best models from OpenAI, Anthropic, and more using included AI credits.
Stateful data with Tables: Store and update structured data directly within Relay.app to use across flows.
Technical power: Advanced users can leverage custom JavaScript, MCP servers, and custom HTTP requests.
200+ native integrations: Deeply connected with popular tools like Notion, Gmail, and HubSpot.
Pricing
Relay.app offers a range of plans including a generous free tier. All plans include free test runs so you can validate your workflows before they go live.
Free: $0/month for 1 user, 200 steps, and 500 AI credits
Professional: $19/month (billed annually) for 1 user, 750 steps, and 2,000 AI credits
Team: $59/month (billed annually) for up to 10 users, 1,500 steps, and 2,000 AI credits
Enterprise: Custom pricing for organizations with advanced usage or security requirements
2.
Gumloop
Gumloop is an AI agent platform where teams build, deploy, and manage specialized agents using a visual canvas. Gumloop lets you drag, drop, and connect modular nodes to orchestrate multi-agent workflows for sales, support, data analysis, and operations. It includes built-in access to multiple AI models (OpenAI, Anthropic, Gemini, DeepSeek, and more), plus features like MCP nodes, custom nodes, and a Workflow Builder Agent. Gumloop also emphasizes their security for enterprise customers.
Product details
About Gumloop:
Multi-agent orchestration: Visual canvas for building and connecting specialized AI agents across sales, support, data, and ops.
All AI models under one subscription: Access OpenAI, Anthropic, Gemini, DeepSeek, and more with no per-model fees.
Slack-native interaction: Team members can tag @Gumloop in Slack to interact with agents like co-workers.
Enterprise-grade security: SOC 2 Type II, GDPR, VPC deployments, RBAC, audit logging, and Gumstack AI gateway for centralized monitoring.
Steeper learning curve: The node-based canvas is powerful but takes more time to master than simpler chat-based tools.
Requires technical thinking: Even though it's no-code, understanding programming logic helps you use it effectively.
Pricing
Free: $0/month – 5k credits, 1 seat, 1 active trigger, 2 concurrent runs, Workflow Builder Agent.
Pro: $37/month – 20k+ credits, unlimited seats, unlimited teams, 5 concurrent runs, BYOK support, dedicated Slack support (250k+ credits/mo).
Enterprise: Custom pricing – RBAC, SCIM/SAML, audit logs, VPC, AI model access control, incognito mode, custom data retention, and more.
3.
Zapier
Zapier is a one of the best-known automation tools (the "OG" of no-code workflows) that has significantly expanded its AI capabilities. Traditionally, Zapier connects your apps: "When X happens in app A, do Y in app B." Now, Zapier offers dedicated AI Agents, AI Chatbots, Canvas, and MCP. Zapier isn't an AI-specialized platform like some others here, but its strength is the 8,000+ app integrations it supports. This means you can trigger AI agents based on almost any event (new email, form submission, CRM update, you name it) and then have the AI perform an action or generate content as part of the Zap.
Product details
Massive integration ecosystem: Zapier connects with over 8,000 apps, so your AI agent can interact with nearly any tool your business uses. This is unmatched in the industry.
Mature product and platform: Zapier has a reputation for dependable execution of workflows, extensive documentation, and a lot of community support.
Extensive template library: Thousands of pre-built Zap templates (including many with AI) can help get you started quickly.
Expanding AI toolkit: Zapier now offers dedicated AI Agents, Chatbots, Canvas, and MCP support alongside its core automation platform.
The OG of no-code workflows: Being a long-time champion of the space means that they have many years of added features, but this also means it's more difficult to evolve significantly.
Pricing
Free Tier: Yes – 100 tasks/month with two-step Zaps, plus Tables, Forms, and Zapier MCP included.
Professional: Starting from $19.99/month (billed annually) – multi-step Zaps, unlimited premium apps, Tables, Forms, and MCP included.
Team: Starting from $69/month (billed annually) – 25 users, shared Zaps, SAML SSO.
Enterprise: Custom pricing – unlimited users, advanced admin controls, observability.
AI Agents add-on: Free (400 activities/mo) or Pro ($33.33/mo for 1,500 activities).
Chatbots add-on: Free (2 chatbots), Pro ($13.33/mo for 5 chatbots), or Advanced ($66.67/mo for 20 chatbots).
4.
Relevance AI
Relevance AI is an AI workforce platform built for sales and GTM teams. Its flagship AI teammate, SuperGTM, handles tasks like lead qualification, outbound prospecting, account research, and customer support, either as a copilot that assists reps or as fully autonomous workforces triggered by pipeline events. The platform includes a no-code builder that lets you create AI agents by describing tasks in plain English, plus pre-built templates and 2,000+ integrations. Relevance AI follows a progressive autonomy model, from assisted to fully self-driving.
Product details
Purpose-built for GTM teams: Pre-built agent templates for BDR, research, inbound qualification, and customer support workflows.
Multi-agent workforces: Handle entire processes like inbound, outbound, and onboarding end-to-end with autonomous agent teams.
2,000+ integrations: Connects to HubSpot, Salesforce, Slack, Gmail, and many more out of the box.
Enterprise-grade security: SOC 2 Type II, GDPR, SSO, RBAC, data residency, and version control included.
Pricing
Free: $0/month – 200 actions/month, 1 user, 1 workforce, unlimited agents & tools
Pro: $19/month (billed annually) – 30,000 actions/year, 2 build users, unlimited workforces, bring your own LLM
Team: $234/month (billed annually) – 84,000 actions/year, 5 build users, 45 end users, A/B testing, calling & meeting agents
Enterprise: Custom pricing – unlimited users & projects, agent evaluations, dedicated account manager, custom implementation
5.
n8n
n8n is an open-source workflow automation platform built for technical teams. It combines a visual workflow editor with the ability to write custom JavaScript or Python code, giving technical users incredible flexibility in building automations. n8n has over 500 integrations, 1,700 templates, and self-hosting options, making it a popular tool for IT Ops, DevOps, SecOps, and Sales.
Product details
Code with no-code flexibility: Write JavaScript or Python alongside a visual UI editor.
Self-hosting available: Deploy with Docker and access the full source code on GitHub for total data control.
Execution-based pricing: Pay per full workflow run, not per step or task, making costs more predictable.
Large open-source community: n8n has a huge community with over 200k members who share templates and support.
Steep learning curve: Best suited for technical users. Non-technical team members will struggle with the code-oriented approach.
Pricing
Community Edition: Free. Self-hosted via GitHub, with standard features.
Starter: $20/mo (billed annually). Includes 2.5K executions, 5 concurrent executions, unlimited users, 1 shared project, 50 AI Builder credits, and forum support.
Pro: $50/mo (billed annually). Includes custom executions, 20 concurrent executions, 3 shared projects, 150 AI Builder credits, admin roles, global variables, workflow history, and 7-day insights.
Business: $800/mo (billed annually). Includes 40K executions (self-hosted), 6 shared projects, SSO/SAML/LDAP, Git version control, environments, 30-day insights, and scaling options.
Enterprise: You'll need to contact sales for pricing. Includes custom executions, 200+ concurrent, unlimited shared projects, 1,000 AI Builder credits, external secret store, log streaming, extended data retention, 365 days of insights, dedicated support with SLA, and invoice billing.
Startup Plan: n8n offers 50% off their Business tier for companies with fewer than 20 employees.
6.
Cassidy
Cassidy is an AI agent platform focused on giving automations deep business context. It connects to your company's documents, wikis, and data sources through a unified knowledge base that continuously syncs, so AI agents always act on the latest information. Cassidy offers no-code workflow creation, agentic reasoning for handling complex logic and exceptions, and cross-system execution across tools like Salesforce, Slack, and Microsoft Teams. It includes human-in-the-loop steps and guardrails for control over business-critical work.
Product details
Deep business context via a unified knowledge base that continuously syncs across your documents and data sources.
No-code workflow creation lets non-technical teams build and deploy AI agents without developer support.
Enterprise-grade security with SOC 2 Type II, GDPR, HIPAA compliance, and SSO.
Deploys directly into Slack, Microsoft Teams, Chrome, and other tools your team already uses.
Pricing
Starter: Free – 3 users, 5 agents, 5 workflows, 10K AI credits, basic integrations, 24-hour data sync.
Business: Custom pricing (book a demo) – custom users, agents, workflows, and credits, instant sync, advanced integrations, SSO, dedicated success manager, and white-glove onboarding.
7.
Make
Make is a visual-first no-code automation platform that lets you design complex workflows on a canvas by connecting modules from 3,000+ apps. It supports advanced logic like branching, filtering, iteration, and error handling, making it popular with power users who need more control than simpler tools offer. Make has recently expanded into AI with beta AI Agents, an AI Toolkit, MCP server support, and 400+ AI app integrations including OpenAI, DeepSeek, and Perplexity. Make is well-suited for technical users and teams that need to build sophisticated, multi-step automations with granular control over every step.
Product details
It's a powerful visual scenario builder: The canvas-based editor lets you see exactly how data flows through your automation. Great for debugging and complex logic.
Advanced workflow logic: Supports branching, filtering, iteration, and error handling that most simpler tools can't match.
Strong integration library: Connects with 3,000+ apps, with deep action support across most of them.
Generous pricing relative to complexity: Make offers more operations per dollar than Zapier, making it attractive for higher-volume automations.
Steep learning curve: Make's power comes at a cost. Non-technical users typically need 10–20 hours before feeling comfortable, and concepts like routers, iterators, and aggregators take real investment to learn.
Pricing
Free: $0/month – 1,000 credits/month
Core: $9/month – 10,000 credits/month
Pro: $16/month – 10,000 credits/month plus priority execution and advanced features
Teams: $29/month – 10,000 credits/month plus team collaboration
Enterprise: Custom pricing
8.
Stack AI
Stack AI is an enterprise-focused platform for building and deploying AI agents with a strong emphasis on security and governance. It offers a visual workflow builder for creating agentic workflows, 100+ enterprise integrations, and flexible deployment options. The platform is certified for HIPAA, SOC 2 Type II, GDPR, and ISO 27001, making it a fit for regulated industries like healthcare, finance, insurance, and defense. Stack AI positions itself as an "AI transformation platform" for IT and enterprise architecture teams. It also provides dedicated white-glove support from AI experts to help organizations scale their agent deployments.
Product details
Enterprise-grade security certifications: HIPAA, SOC 2 Type II, GDPR, and ISO 27001 — ideal for regulated industries.
Flexible deployment options: Supports multi-tenant cloud, VPC, and on-premise deployments to meet strict data residency needs.
100+ enterprise integrations: AI agents can read, write, and execute tasks within existing enterprise systems.
Dedicated white-glove support: Hands-on guidance from AI experts throughout the deployment lifecycle.
Sales-driven model: Most meaningful features require booking a demo and negotiating custom pricing.
Pricing
Free: $0/month — 500 runs/month, 2 projects, 1 seat, community support on Discord.
Enterprise: Custom pricing — custom runs, unlimited projects, custom seats, all features and data loaders, dedicated infrastructure, on-prem and VPC deployment, SSO, access control, SOC 2/HIPAA/GDPR compliance, dedicated solution engineers.
9.
Lindy
Lindy is an AI personal assistant designed to proactively manage your inbox, meetings, and calendar. Lindy operates as an always-on executive assistant you interact with primarily via iMessage or SMS: You text it requests, and it handles tasks like drafting emails, scheduling meetings, prepping you before calls, and triaging your inbox. It connects with hundreds of integrations (Gmail, Outlook, Google Calendar, Slack, Notion, and more) and learns your communication style and preferences over time. It's positioned as a replacement for a human executive assistant at a fraction of the cost.
Product details
Proactive assistant: Lindy can surface important context, share meeting prep, and flags items before you ask it.
iMessage/SMS interface: Works anywhere you can text, 24/7, no need to open a separate app or dashboard.
Learns your style over time: Adapts to your writing voice, priorities, and preferences through ongoing feedback and usage.
Enterprise-grade security: GDPR, SOC 2, HIPAA, and PIPEDA compliant with encryption and no data used for model training.
No longer a workflow automation builder: While Lindy's interface offered a visual workflow building experience in the past, the company has since pivoted to become a virtual agentic personal assistant.
Requires customization to work the way you want it to: In our team's testing, not all of the assistant's default proactive behavior was desired. You'll need to spend a bit of time talking with Lindy to understand exactly what it does for you and how to customize it.
Pricing
Lindy has no free plan, but you can try it for a 7-day trial.
Plus: $49.99/month — standard usage, iMessage access 24/7, inbox management, email drafting, meeting scheduling/prep/follow-up, meeting recording and notes, learns your style, hundreds of integrations.
Pro: $99.99/month — 3x the usage of Plus, all core features included.
Max: $199.99/month — 7x the usage of Pro, all core features included.
Enterprise: Custom pricing — everything in Max, audit logs, SSO, SCIM, dedicated support, onboarding and enablement, AI assistants for the whole team.
Free Trial: 7 days, full access to Plus features, cancel anytime.
10.
Tray
Tray.ai is an AI orchestration platform that combines a traditional iPaaS with AI agent building capabilities. Its Merlin Agent Builder lets teams create agents that can reason, act, and learn across connected systems deployable to Slack, web apps, or APIs. The platform offers 600+ connectors, pre-built agent accelerators for IT, HR, knowledge, and support use cases, and enterprise-grade governance features like audit trails, guardrails, and role-based access control. Tray positions itself as a low-code builder for business technologists and development teams, with a focus on scaling AI agents across the enterprise stack.
Product details
Enterprise-grade governance: Includes guardrails, audit trails, RBAC, and Merlin Guardian for sensitive data protection.
Pre-built agent accelerators: Ready-to-use agents for ITSM, HR, knowledge, and support speed up time-to-value.
600+ connectors: Broad integration library for connecting across complex enterprise stacks.
Flexible LLM support: Choose the best model for each use case with no vendor lock-in.
Enterprise-oriented: Designed for large IT teams.
Pricing
Pro: Custom pricing – 3 workspaces, 7-day log retention, pairs with Merlin Agent Builder
Team: Custom pricing – 20 workspaces, all add-ons available, pairs with Merlin Agent Builder
Enterprise: Custom pricing – unlimited workspaces, all add-ons included, Embedded Bundle access
Merlin Agent Builder: Purchased separately – includes pre-built accelerators, guardrails, multi-LLM support
ITSM Accelerator Starter: Pre-built ITSM agent with 50,000 tasks, Slack/Teams integration, guided onboarding, and enterprise support
No free tier — all plans require contacting sales.
How to make your choice
Still not sure which platform to pick? Answer these four questions:
Question 1: What's your technical comfort level?
"I'm not technical at all" → Start with Relay.app. You can build agents using natural language without touching any technical configuration.
"I can follow tutorials and learn new tools" → Consider Gumloop, Zapier, Cassidy, or Relevance AI. These have visual builders or no-code interfaces that take some learning but don't require coding.
"I'm a developer or have one on my team" → Look at n8n. You'll get maximum flexibility and can customize everything. Make is another strong option if you prefer a visual canvas with advanced logic.
Question 2: How important is human oversight?
"Critical, AI can't take actions without my approval" → Relay.app has the best human-in-the-loop features. You can require approval before any action executes.
"I want visibility but don't need to approve everything" → Most platforms work here. Prioritize based on other factors.
Question 3: What tools do you need to connect?
"Mostly common tools (Google Workspace, Slack, CRMs, etc.)" → Any platform on this list will work. Choose based on ease of use and price.
"I need connections to obscure or legacy tools" → Zapier (8,000+ integrations) or n8n (can connect to any API) are your best bets.
"I primarily need AI capabilities, integrations are secondary" → Gumloop or Relevance AI focus more on AI power than integration breadth.
Question 4: Do you have enterprise or compliance requirements?
"Yes, we're in a regulated industry (healthcare, finance, defense)" → Stack AI (HIPAA, SOC 2, ISO 27001, on-prem deployment) or Tray (enterprise iPaaS with full IT governance and the Merlin Agent Builder) are purpose-built for this.
"We need AI that's deeply grounded in our internal company knowledge" → Cassidy connects to your docs, wikis, and data sources to give agents real business context, no coding required.
"Standard security is fine" → Any platform on this list will cover you. Focus on ease of use and features instead.
The bottom line
After testing all of these platforms extensively, here's my honest take:
For 80% of people reading this, Relay.app is the right choice. It's the easiest to use, has the best human-in-the-loop controls (which you'll thank yourself for later), and the pricing is fair. The integration library is still growing, but it covers the tools most businesses actually use.
If you want the most AI-native building experience, Gumloop is worth a serious look. Its visual canvas for multi-agent orchestration is impressive, and access to all major AI models under one subscription keeps things simple.
If Relay.app doesn't have an integration you need, check Zapier first. It connects to everything, and while its AI features aren't as sophisticated, you can pair it with other tools.
If your focus is sales and GTM, Relevance AI was built specifically for that. Its pre-built agent templates for BDR, research, and inbound qualification can get your revenue team up and running fast.
If you're technical and want full control, n8n is the choice for you. Self-host it, customize it, and pay nothing (or very little). The trade-off is complexity. You're on your own for setup and maintenance.
If you want AI agents that truly understand your business, Cassidy is a smart pick. Its Knowledge Base connects your docs, SOPs, and company data so agents respond with real context, not generic AI output.
If you need a visual automation powerhouse, Make gives you a canvas-based editor with branching, filtering, and iteration that power users love. Its AI capabilities are catching up, though the learning curve is steeper than simpler tools.
If you're in a regulated enterprise, Stack AI and Tray are worth a serious look. Stack AI brings HIPAA, SOC 2, and on-prem deployment for the most sensitive environments. Tray gives IT teams a governed platform to build and manage agents across the entire stack with its Merlin Agent Builder.
If you need a personal AI assistant rather than an agent builder, Lindy is worth a look. It's an always-on executive assistant that manages your inbox, calendar, and meetings via iMessage. Great for busy professionals, though it's not a platform for building custom agents.
The AI agent space is moving fast. The platform that's right for you today might not be right in a year. Start with something that gets you results quickly, learn what you actually need, and be willing to switch if something better comes along.
Now stop reading and go build your first agent. The best way to learn is by doing.
Jacob Bank
Founder/CEO at Relay.app
Jacob is the Founder and CEO of Relay.app. Prior to founding Relay.app, Jacob was a Director of Product Management at Google, where he led the product teams for Gmail, Google Calendar, and several other Google Workspace products. Before that, Jacob was the Co-founder and CEO of Timeful (acquired by Google in 2015), a smart calendar that leveraged insights from behavioral psychology and AI to help people spend time on their most important priorities. He has a BA in Computer Science from Cornell University and was pursuing a PhD in the AI Lab at Stanford before dropping out to found Timeful.
FAQs
What's the best AI automation tool for small businesses and entrepreneurs?
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