Sub2API is an API gateway platform that unifies subscription quota distribution across multiple AI providers including Claude, OpenAI, Gemini, and Grok. Built in Go, it acts as a centralized relay service that allows users to consolidate multiple subscriptions into a single interface while supporting cost-sharing arrangements among users.
The tool solves the problem of managing separate API credentials and quotas across different AI providers by providing a unified access point. It enables quota pooling and cost distribution, allowing multiple users to share subscription costs more efficiently. The platform presents itself as compatible with native tools, meaning applications built for direct provider APIs can work with the gateway without modification.
Developers considering adoption should be aware that the project explicitly warns about potential terms of service violations with upstream providers like Anthropic and others. The README emphasizes that users bear all risks from such use and must comply with their local laws and regulations. The project is presented as intended for technical learning and research purposes only, with no commercial authorization granted. The developers disclaim liability for account bans, service interruptions, or other damages resulting from use.
The project maintains active development with regular updates and engagement. The codebase shows consistent refinement of core functionality. Community interaction appears present through sponsorship arrangements and documented partnerships. The tool receives ongoing attention to its relay infrastructure and quota management systems.
