sub2api

An open source relay service that lets Claude, OpenAI, Gemini, and Grok subscriptions connect through a single API, with an explicit terms of service warning up front.

The one line description is an open source relay service that connects Claude, OpenAI, Gemini, and Grok subscriptions uniformly, supporting ride sharing to spread costs. The README leads with an important notice section rather than a feature list, and the project is written in Go under the LGPL-3.0 license. The idea is to make subscription based AI access work through standard API interfaces, with the platform generating API keys for users and handling authentication, billing, load balancing, and request forwarding.

The notice section is blunt. Using the project may violate the terms of service of Anthropic and other upstream providers. Users are told to review the relevant provider agreements before use, and that all risks are borne solely by the user. The project should only be used in compliance with local laws, is provided for technical learning and research, and the authors assume no liability for account bans or service interruptions.

A large sponsor section dominates the README. The sponsors include AI API gateways and relay services for Claude, OpenAI, and Gemini, providers of residential proxies, and platforms selling AI account top ups and coding tools. Each sponsor is described with its own claims about cost, speed, and reliability, and several offer discounts or credits through registration links. The README positions the project as a technical convenience, while the sponsor content keeps the financial engine visible.

Sub2API pairs a genuinely useful idea with a loud legal warning and a wall of sponsor ads. The README's priorities are clear: risk disclosure first, monetization second, and technical detail somewhere in between.

• Source 1 · Project repository
• Source 2 · README