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Tool
Category
Pricing
Free?
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Voiceflow
Collaborative platform for designing and deploying voice and chat AI agents
Best for: voice-agents
Browserbase
Cloud browser infrastructure for AI agents to automate web interactions at scale
Best for: browser-automation
Exa AI
Semantic search engine and API for AI agents using embedding-based retrieval
Best for: semantic-search
Steel Browser
Open-source browser API for AI agents with managed sessions and proxy support
Best for: browser-API
XAgent
Open-source autonomous agent with hierarchical planning and sub-agent coordination
Best for: autonomous
Microsoft Copilot Studio
Low-code platform for building custom Microsoft Copilot AI agents for business
Best for: Microsoft
Thoughtly
AI voice agent platform for building phone agents for sales and support
Best for: voice-agent
ChatDev
Multi-agent software company simulation where AI roles collaborate to build software
Best for: multi-agent
Smolagents
Lightweight Hugging Face agent framework where LLMs write code to use tools
Best for: Hugging Face