What is a Relay API?

This API connects to AI large language models such as OpenAI, Gemini, and Claude through our backend, providing reliable and stable models for a seamless experience. We also allow you to switch KEY groups to different quality routes at any time using tokens.

We do not offer ultra-low-price reverse-engineered GPT APIs. We uphold a speed-first philosophy. Our API fully discloses the speed of every request and makes every effort to ensure the best user experience.

Why is there a difference in the actual payment amount?

Since we settle in Hong Kong Dollars, the two-way currency conversion between RMB and HKD may result in a discrepancy of a few cents in the actual payment amount, which is normal.

If possible, we recommend using USDT on BSC (Binance Smart Chain) for payment, which incurs only a 0.001 fee and offers exchange rate benefits.

**The more you recharge, the more discount you get. For large recharges, please visit the API website**

Supported Applications

Supports all websites, applications, and libraries that can bind an API key + BaseURL, including the utools GPT.Friend plugin

The models can also be integrated with popular tools such as Claude Code, CodeX, OpenClaw, and OpenCode.

Enjoy smooth conversations, enhanced experience, and the best choice for productivity. Every conversation has a consumption record for transparency—spend wisely, buy with confidence.

Usage Guide

1. After placing an order, a recharge redemption code will be provided in the order card.

2. Visit the API address (backup address), register and log in, then go to the "My Wallet" page to redeem your balance.

Rate Pricing

Most model rates are consistent with the official website. You can check the official pricing.

However, recharge prices are converted to RMB. 1.65~2.5 RMB = 1 USD (depending on the recharge amount). This is equivalent to approximately 22.1%~34.2% of the official price.

Some third-party APIs offer very cheap USD recharge rates, but the actual deduction is N times the official price. Our rates are synchronized with the official website—transparent pricing!

The relay API supports all GPT series models, DALL·E 3 powerful image generation model, voice models, web search, as well as Claude series models, Gemini, DeepSeek R1, Midjourney image generation model, Runway, Luma, Suno, MiniMax, Kling, and other audio/video models. The relay API cannot be used to log in to the official website. Visit the model list to view currently supported models.