ChatHub Integration

ChatHub is a browser extension that lets you chat with multiple AI models simultaneously in a split-screen interface. It supports ChatGPT, Claude, Gemini, and custom OpenAI-compatible endpoints.

ChatHub's custom provider feature lets you add LLM API as an additional chat source.

Prerequisites

An LLM API account with an API key
ChatHub installed or accessible

Setup

Get Your LLM API Key

Log in to your LLM API dashboard
Click Create Key to Start
Copy your new API key immediately — it will only be shown once
Store the key securely (e.g., in a password manager or .env file)

LLM API is an OpenAI-compatible gateway that gives you access to dozens of AI models through a single API key and endpoint.

Configure LLM API in ChatHub

Install the ChatHub browser extension.
Open ChatHub settings.
Navigate to "Custom API" or "OpenAI Compatible" section.
Enter:
- API Key: paste the key you copied from app.llmapi.ai/api-keys
- Base URL: https://api.llmapi.ai/v1
Add the model ID.
Click "Save".

Test the Integration

Verify that ChatHub can successfully communicate with LLM API by sending a test request. All requests will now be routed through LLM API.

ChatHub's split-screen lets you compare LLM API responses with other providers in real time.

Benefits of Using LLM API with ChatHub

Multi-Provider Access: Use models from OpenAI, Anthropic, Google, and more through a single API
Cost Control: Track and limit your AI spending with detailed usage analytics
Unified Billing: One account for all providers instead of managing multiple API keys
Caching: Reduce costs with response caching for repeated requests

View all available models on the models page.