Added support for OpenAI's new Responses API

April 23, 2025

Helicone now supports OpenAI’s new Responses API, allowing you to monitor and analyze your model’s responses seamlessly.

What is the OpenAI Responses API?

The OpenAI Responses API enables you to provide text or image inputs to generate text or JSON outputs by calling your own custom code or using built-in tools like web search or file search.

Integrating with Helicone

1. Create a Helicone account and API key.
2. Set environment variables
3. Install the OpenAI SDK:

   npm install openai
   

4. Configure your OpenAI client to use the Helicone proxy:

   import OpenAI from "openai";
   
   const openai = new OpenAI({
     apiKey: process.env.OPENAI_API_KEY,
     baseURL: "https://oai.helicone.ai/v1", // Route requests through Helicone
     defaultHeaders: {
       "Helicone-Auth": `Bearer ${process.env.HELICONE_API_KEY}`, // Authenticate with Helicone
     },
   });
   

With this setup, any calls to the OpenAI Responses API will be automatically logged and monitored by Helicone.

For more examples, including file search, streaming, function calling, and reasoning, please refer to our documentation.