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150 agents · capability hub

AI agents with tool-use2026

Agents that call external tools, APIs and functions to act on the world. The foundational capability that separates an agent from a chatbot.

Want the technical definition? Read the tool-use glossary entry →

The 150 agents that ship tool-use

Frequently asked

What is tool-use in AI agents?+

The ability of an LLM to invoke external functions — APIs, shell commands, internal services — instead of just generating text.

Which AI agents support tool-use?+

150 agents in our index ship tool-use. The list above is sorted by community interest; GitHub Copilot, Windsurf, OpenAI Operator are the most-researched in 2026.

How do I evaluate tool-use in an AI agent?+

Look for: (1) reliability across edge cases, not just demo videos; (2) how the agent recovers when tool-use fails mid-task; (3) whether tool-use is the default mode or an opt-in feature. Production-ready agents publish tool-use benchmarks; demos and screenshots aren't enough.

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AI agents with tool-use in 2026: 150 compared · AI Agent Rank