LLM API Integration Guide: Start Calling GPT, Claude, and Kimi

Getting Started with LLM APIs

Integrating large language models into your application doesn't have to be complicated. With the OpenAI-compatible API standard, you can switch between models from different providers with minimal code changes. This guide walks you through the essential steps.

Step 1: Get Your API Key

Sign up on our platform, top up your balance, and create an API key from the dashboard. Choose between a General key (access to all models except claude-sonnet-4-6) or an Aggregated key (exclusive access to our high-performance claude-sonnet-4-6 model).

Step 2: Configure Your Client

Use the base URL https://your-domain.com/api/v1 with any OpenAI SDK. Most clients accept this as a drop-in replacement. For Claude-native clients, use the Messages-compatible endpoint.

Step 3: Make Your First Call

Test your setup with a simple completion. Monitor your usage from the dashboard to track costs and optimize your prompts.