Function Calling

POST

/v1beta/models/gemini-2.5-pro:generateContent

• Declare tools.functionDeclarations for the model to choose calls
• The model may return functionCall; execute on the client and send results back
• Use for calendars, queries, business APIs, and other tool integrations
• Official docs: Function calling

Authorizations

bearer

Type

HTTP (bearer)

Request Body

application/json

object

object[]

Required

Tool declarations

object

Generation config