Sub2API: An Open-Source Go Proxy for Sharing AI Subscriptions

Sub2API is a newly released open-source proxy service written in Go that unifies access to major AI subscriptions including Claude, OpenAI, Gemini, and Grok. It allows users to share subscription costs and integrate these services seamlessly with native tools. This tool addresses the high cost of maintaining multiple individual AI subscriptions by enabling cost-sharing through a single unified API gateway. It simplifies access management for developers and small teams who want to utilize multiple LLM providers without paying full price for separate accounts. Written in Go, Sub2API functions as an API gateway that routes requests to different AI providers while maintaining compatibility with native tools. However, as a wrapper tool, its novelty is limited compared to more robust enterprise AI gateways.