GetCheapAI

What Are AI API Relays (Third-Party API Platforms) and Why Use Them?

Learn what AI API relays (third-party API platforms) are and how they work

3 min read

Popular models like ChatGPT, Claude, Gemini, DeepSeek, and others all offer web or app interfaces for users. However, if you want to use these models in third-party software (such as Cherry Studio, OpenCode, OpenClaw, Hermes, etc.), you'll need to connect to their APIs.

Unfortunately, using official APIs directly comes with significant barriers — network restrictions in some regions, international credit card requirements, separate API key applications for each platform, and official rates are fairly expensive. Some advanced models even require a minimum spending threshold to unlock.

What Are AI API Relays?

An AI API relay (also called a third-party API platform or API reseller) is a service that purchases API quotas from various model providers in bulk, then resells them to users through a unified interface. You only need to register with one platform to access nearly all mainstream models through a single API key.

Compared to using official APIs directly, the core advantages of these platforms are:

  • Network Friendly: Most platforms are directly accessible worldwide, with no additional network tools required.
  • Low Prices: Most models are priced as low as 10% of the official price. Why Are These Platforms So Cheap?
  • Easy Payment: Integrates multiple payment methods — for example, Chinese users can use Alipay and WeChat Pay.
  • All-in-One Access: One account, one API key to use all models — no need to apply separately for each.

Risks of Use

While these platforms are convenient, there are some risks to be aware of:

  • Data Privacy: Your conversations pass through third-party servers, and the platform can theoretically view all your chat history. Do not send passwords, keys, or other sensitive information in your conversations.
  • Security Risks: Malicious platforms may inject hidden instructions into your conversations (prompt injection), tricking models into outputting harmful content or extracting sensitive data you've shared. Choose reputable platforms.
  • Stability Risks: Some platforms use reverse-engineered and subscription-based channels to provide services, which may stop working at any time. What Are Reverse Groups?
  • Top-up Risks: Platforms heavily rely on reverse and subscription-based channels and need to advance funds. If official crackdowns cause channels to fail, cash flow problems may force the platform to shut down. It's recommended to top up in small amounts rather than depositing large sums at once.
  • Channel Misrepresentation: Some platforms mix in cheaper channels and models to handle your requests.

Learn More