AI glossary

What is Function Calling?

A model capability where it requests that your code run a named function with JSON arguments, then uses the result.

You describe tools with a name, description and JSON Schema. The model never executes anything itself: your application runs the tool and returns the result.

▶Practice it hands-onTool Use (Function Calling)

Related terms

AI Agent MCP (Model Context Protocol)

← All 43 AI terms