LangChain Configuration

LangChain  is a development framework for building AI applications, supporting Python and JavaScript. Since OfoxAI is fully compatible with the OpenAI protocol, you only need to change the openai_api_base to get started.

Prerequisites

• An OfoxAI account with an API Key (Get one here )
• Python 3.8+ installed

Configuration Steps

Step 1: Install Dependencies

pip3 install langchain langchain-openai

Step 2: Configure and Run

from langchain_openai import ChatOpenAI
 
llm = ChatOpenAI(
    model="openai/gpt-4.1",
    openai_api_key="<YOUR_OFOXAI_API_KEY>",
    openai_api_base="https://api.ofox.ai/v1"
)
 
response = llm.invoke("Hello")
print(response.content)

python3 -W ignore example.py

import { ChatOpenAI } from "@langchain/openai"
 
const llm = new ChatOpenAI({
  model: "openai/gpt-4.1",
  openAIApiKey: "<YOUR_OFOXAI_API_KEY>",
  configuration: {
    baseURL: "https://api.ofox.ai/v1"
  }
})
 
const response = await llm.invoke("Hello")
console.log(response.content)

Available Models

For recommended models, see the OfoxAI Model Marketplace .

FAQ

Q: ModuleNotFoundError: No module named 'langchain_openai'

Run pip3 install langchain-openai to install the missing package.

Q: API Key is invalid

Make sure the openai_api_key is your OfoxAI API Key, not an official OpenAI Key.