AI agent builders are tools and platforms that help you create systems that can receive input, reason about it, take actions, and produce results - sometimes integrating with other apps automatically.
Some tools below help build AI agents directly, while others support execution, orchestration, or integration.
Best for beginners and fast results
No-code automation platforms are ideal for speed and experimentation, while frameworks offer more control at the cost of setup time.
Build agent workflows using visual automation and webhooks
Visual automation platform for creating complex workflows

Modern automation platform for building agent workflows
AI-powered automation for data and workflow processing
Automation platform for sales and marketing workflows

Open-source platform for building and deploying LLM applications
Used by serious AI builders
Frameworks provide maximum flexibility and control, but require development expertise and longer setup times compared to no-code platforms.
One of the most widely used frameworks for building LLM applications and agent systems
Multi-agent orchestration framework for collaborative agent teams
Framework for agent-to-agent communication and multi-agent systems
Autonomous task execution framework for self-directed agents
Framework for building agents with structured, validated outputs
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Register as SellerLast updated: December 2025