Best AI AI Agents Tools

Vapi

Build, test, and deploy voice AI agents in minutes

• Low-latency voice AI infrastructure
• Custom voice cloning and personas
• Function calling and tool use

Relevance AI

Build, deploy, and manage AI agents and multi-agent teams without writing code

• Drag-and-drop agent builder
• Multi-agent orchestration
• Tool library (100+ pre-built tools)

Voiceflow

Design, build, and ship AI agents for customer support and conversations

• Visual conversation designer
• AI knowledge base integration
• Multi-channel deployment (web, SMS, voice)

CrewAI

Orchestrate multi-agent AI crews that collaborate to complete complex tasks

• Role-based multi-agent framework
• Agent task delegation and collaboration
• Tool use and web browsing

Gumloop

Automate complex workflows with AI nodes — no code, no limits

• Visual AI workflow builder
• Web scraping and data extraction nodes
• LLM processing nodes (GPT-4, Claude)

Taskade

AI-powered project workspace where agents help you research, plan, and execute tasks

• AI agent creation and management
• AI-powered project management
• Automated research and summarisation

Botpress

Open-source AI agent platform — build chatbots and agents that actually work

• Visual flow builder
• Built-in LLM integration (GPT-4, Claude)
• Knowledge base and document Q&A

Stack AI

Build enterprise AI agents and workflows with a no-code drag-and-drop interface

• Visual AI pipeline builder
• Document processing and Q&A
• Multi-model support (GPT-4, Claude, Gemini)

AutoGPT

The original autonomous AI agent — set a goal, let it work until done

• Goal-driven autonomous task execution
• Web search and browsing
• File creation and management

Flowise

Open-source visual builder for LLM apps and AI agents — free to self-host

• Drag-and-drop LLM chain builder
• Multi-model support (OpenAI, Anthropic, Ollama)
• RAG and document Q&A workflows

AgentGPT

Assemble, configure, and deploy autonomous AI agents in your browser

• Browser-based autonomous agent
• Goal decomposition into subtasks
• Web search and browsing