API Reference

Custom Instructions

Attach short titled instructions to an assistant to steer its behavior without editing the main prompt.

For a step-by-step walkthrough, read the Custom instructions guide.

Endpoints

Method	Path	Purpose
GET	/custom-instructions	List custom instructions
POST	/custom-instructions	Create custom instruction
PATCH	/custom-instructions/{id}	Update custom instruction
DELETE	/custom-instructions/{id}	Delete custom instruction

Try it in the API Explorer