The ultimate list of best AI agent builders
Publish Date • December 28, 2025
Updated On • January 10, 2025
AI agents are advanced computer programs that plan, act, and achieve goals on their own. With their automation capability, you can scale your business like never before.
These AI agents can automate complex processes, simplify workflows, and improve efficiency at low costs. Gartner predicts that the percentage of daily work decisions automated by Agentic AI will increase from 0% in 2024 to at least 15% by 2028.
But to fully unlock their potential, you need robust and reliable AI agent builders. This post lists some of the best AI agent builders to help you create custom AI agents quickly and effectively.
What is an AI agent builder?
An AI agent builder is a platform that helps you design and manage AI agent solutions for your business. From customer support and sales to report generation and solving coding problems, AI agent builders let you create automation solutions for your specific needs.
With no-code platforms, you can easily create agents with natural language instructions or a drag-and-drop interface. At the same time, low-code platforms come with pre-built templates and libraries that you can customize with minimal coding. There are also pro-code platforms that help you build high-performance and highly customizable agents with extensive coding.
In the next section, we’ll explore some of the best no-code AI agent builders with their use cases and features.
7 Best AI agent builders: Scale your business with no limits
AI agents open the door to incredible possibilities. Carefully check factors like ease of use, scalability, integration capability, customizations, security, and pricing to choose which of the following platforms is the best fit for your business.
1. Chatsimple
Chatsimple is a no-code platform that helps businesses easily create AI agents for sales and support. Its user-friendly interface lets you build advanced and super-functional agents within five minutes.
Chatsimple’s AI sales agent provides accurate and human-like voice responses to customers. Businesses can use the agent to answer customer queries, recommend products, qualify and capture leads, book sales meetings, and close deals on autopilot.
Key features:
- Agents can be trained on multiple sources like website URLs, files, and text.
- Provides extensive customization to control the agent’s behavior and appearance.
- Integrates with HubSpot, Salesforce, Pipedrive, Instagram, WhatsApp, Gmail, Zapier, etc.
- Agents are powered by advanced models like GPT-o1-mini, GPT-4o, Claude 3.5 Sonnet, etc.
- Offers an intuitive dashboard to track agent performance.
- GDPR, SOC 2, and CCPA compliant.
2. Vertex AI
Google Cloud’s Vertex AI helps developers build and manage no-code conversational AI agents. These agents can be used for customer support, employee onboarding, inventory management, market trend prediction, and so on.
Key features:
- Agents can be created using natural language instructions.
- Provides access to Google’s foundation models, search, and conversational AI.
- Multiple agents can be connected to build workflows and meet your business needs.
- Agent outputs can be tested and analyzed to improve the performance.
- Offers enterprise-grade security with HIPAA and SOC-1/2/3 compliance.
3. Copilot Studio
Microsoft’s Copilot Studio allows businesses to design and deploy AI agents to multiple channels like websites and social media. It has an intuitive graphical interface that lets users with little coding experience work on the platform. Studio’s agents can be used for data entry, report generation, employee onboarding, ticket resolving, etc.
Key features:
- Offers both no-code and pro-code building environments.
- Agents are scalable, helping businesses meet growing needs.
- Provides pre-built agents for common applications that can be customized for specific needs
- Agents can be easily integrated with Microsoft 365 tools like Teams and Business Chat.
- Provides a central admin center to control agent access and protect your data.
4. Lindy AI
Lindy AI is another no-code platform that helps businesses create AI agents to automate various routine tasks and improve workflow. Lindy’s agents can be used to summarize meetings, handle customer support calls, craft outreach messages, manage emails, schedule social media, analyze data, etc.
Key features:
- User-friendly interface helps non-technical users build advanced AI agents quickly.
- AI agents can be created for different tasks and connected together to improve automation.
- Supports 80+ languages and advanced AI models.
- Integrates with apps like Slack, Notion, Zendesk, Google Workspace, etc.
- SOC-2 and HIPAA compliant with AES-256 data encryption.
5. Relevance AI
Relevance AI is a no-code AI agent builder that helps teams build efficient workflows and get human-quality output from AI. Their AI agent can summarize prospect information, write personalized emails, answer customer FAQs, escalate customer inquiries to human agents, send daily reports, categorize service desk requests, etc.
Key features:
- Provides several AI agent templates to quickly build your agent.
- Agents can be taught skills like transcribing YouTube videos or searching on Google.
- Supports different LLM providers like OpenAI, Google, Cohere, Meta, etc.
- Integrates with platforms like HubSpot, Salesforce, Zapier, Gmail, Slack, etc.
- SOC 2 and GDPR compliant.
6. AutoGen
Microsoft’s AutoGen is an open-source Python-based framework for building advanced AI agents. Developers can use the low-code interface to quickly design, test, and deploy multi-agent solutions. The agents can be used for applications such as delivery optimization, video generation, solving coding problems, managing personal finance, and planning vacations.
Key features:
- Create LLM workflows with a multi-agent conversation framework.
- Simplify development with pre-built systems for various applications.
- Optimize inference and cut costs with improved LLM inference APIs.
- Build multi-agent solutions that can collaborate to achieve an end goal.
- Share, reuse, and deploy your agents and workflows as APIs.
7. Dify
Dify is an open-source LLM application development platform that helps you build and manage AI agent solutions with little coding knowledge. Their AI agents can be used for various tasks like guiding shoppers, analyzing financial reports, researching information, business problem-solving, etc.
Key features:
- Use application templates to quickly build AI agents for various business needs.
- Switch between different LLMs, including OpenAI, Llama 2, Gemini, Anthropic, etc.
- Build complete AI workflows and connect them to existing systems.
- It supports an integrated RAG pipeline for improved contextual accuracy.
- SOC 2 Type 1 compliant.
Summing up
AI agent builders help you create intelligent software that can decide, act, and achieve specified goals autonomously. These software programs can work round the clock to support customers, increase sales, analyze data, automate processes, and solve problems to scale your business. Explore the above best AI agent builders and get started today.