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AI Agent Tool Calling: How LLMs Decide Which APIs and Actions to Execute

This story is from 2026-09-19. It is preserved in the archive; the latest stories are on the live feed.

AI Agent Tool Calling: How LLMs Decide Which APIs and Actions to Execute AI agent tool calling transforms a static large language model into an active orchestrator capable of querying databases, invoking external APIs, and executing programmatic side effects. At its core, tool calling represents a…

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  1. 2026-09-19 10:40 · DEV Community — Machine Learning
    AI Agent Tool Calling: How LLMs Decide Which APIs and Actions to Execute

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