NextChat Setup Guide

Configure Crazyrouter API in NextChat (ChatGPT Next Web)

Overview

NextChat (formerly ChatGPT Next Web) is a popular open-source ChatGPT web client.

Online Configuration

1. Open Settings

   Click the Settings icon in the bottom left

2. Configure API

   • API URL: https://crazyrouter.com
   • API Key: sk-xxx
3. Select Model

   Select or enter a model name in the Model field

Docker Self-Hosting

services:
  nextchat:
    image: yidadaa/chatgpt-next-web
    ports:
      - "3000:3000"
    environment:
      - OPENAI_API_KEY=sk-xxx
      - BASE_URL=https://crazyrouter.com
      - CUSTOM_MODELS=+gpt-4o,+claude-sonnet-4-20250514,+gemini-2.5-pro

Environment Variables

Variable	Description
OPENAI_API_KEY	API key
BASE_URL	API URL (without /v1)
CUSTOM_MODELS	Custom model list, + means add
HIDE_USER_API_KEY	Set to 1 to hide user custom Key entry

NextChat’s API URL does not need the /v1 suffix — the application appends it automatically.