ToolCalls.orgOpenClaw and API Tool Calls Documentation

A practical guide to tool calls, tool use, function calling, provider differences, and real-world agent workflows.

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Understand the basics

Learn tool definitions, tool loops, result injection, and how agent runtimes differ from raw APIs.

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Covers OpenClaw workflows, message channels, memory recall, subagents, and first-party tools.

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Compare OpenAI, Anthropic, and Gemini across tool calling semantics and streaming behavior.