sub2api

# Sub2API

<div align="center">

[![Go](https://img.shields.io/badge/Go-1.25.7-00ADD8.svg)](https://golang.org/)
[![Vue](https://img.shields.io/badge/Vue-3.4+-4FC08D.svg)](https://vuejs.org/)
[![PostgreSQL](https://img.shields.io/badge/PostgreSQL-15+-336791.svg)](https://www.postgresql.org/)
[![Redis](https://img.shields.io/badge/Redis-7+-DC382D.svg)](https://redis.io/)
[![Docker](https://img.shields.io/badge/Docker-Ready-2496ED.svg)](https://www.docker.com/)

<a href="https://trendshift.io/repositories/21823" target="_blank"><img src="https://trendshift.io/api/badge/repositories/21823" alt="Wei-Shaw%2Fsub2api | Trendshift" width="250" height="55"/></a>

**AI API Gateway Platform for Subscription Quota Distribution**

English | [日本語](README_JA.md)

</div>

## ⚠️ Important Notice

Please read the following carefully before using this project:

- **🚨 Terms of Service Risk**: Using this project may violate the terms of service of Anthropic and other upstream providers. Please review the relevant providers' user agreements before use; all risks arising from such use are borne solely by the user.
- **⚖️ Compliant Use**: Use this project only in compliance with the laws and regulations of your country or region. Any unlawful use is strictly prohibited.
- **📖 Disclaimer**: This project is provided for technical learning and research purposes only. The authors assume no liability for account bans, service interruptions, data loss, or any other direct or indirect damages resulting from the use of this project.

## Overview

Sub2API is an AI API gateway platform designed to distribute and manage API quotas from AI product subscriptions. Users can access upstream AI services through platform-generated API Keys, while the platform handles authentication, billing, load balancing, and request forwarding.

## Features

- **Multi-Account Management** - Support multiple upstream account types (OAuth, API Key)
- **API Key Distribution** - Generate and manage API Keys for users
- **Precise Billing** - Token-level usage tracking and cost calculation
- **Smart Scheduling** - Intelligent account selection with sticky sessions
- **Concurrency Control** - Per-user and per-account concurrency limits
- **Rate Limiting** - Configurable request and token rate limits
- **Built-in Payment System** - Supports EasyPay, Alipay, WeChat Pay, and Stripe for user self-service top-up, no separate payment service needed ([Configuration Guide](docs/PAYMENT.md))
- **Admin Dashboard** - Web interface for monitoring and management
- **External System Integration** - Embed external systems (e.g. ticketing) via iframe to extend the admin dashboard

## ❤️ Sponsors

> [Want to appear here?](mailto:support@pincc.ai)

<table>

<tr>
<td width="180"><a href="https://www.openmodel.ai?ref=sub2api"><img src="assets/partners/logos/openmodel.jpg" alt="openmodel" width="150"></a></td>
<td>One API, every top model! <a href="https://www.openmodel.ai?ref=sub2api">OpenModel</a> is a production-grade, high-availability AI API gateway that makes your applications truly fast and stable: automatic failover, smart routing to the best-performing channel, and a production-grade SLA. An SLA that far surpasses any single provider — making stability your core competitive advantage. Works directly with Claude Code, Codex, and Gemini CLI. Register via this link to get started.</td>
</tr>

<tr>
<td width="180"><a href="https://etok.ai"><img src="assets/partners/logos/etok.png" alt="ETok" width="150"></a></td>
<td>Thanks to ETok.ai for sponsoring this project! ETok.ai is dedicated to building a one-stop AI programming tool service platform. We offer professional Claude Code packages and technical community services, with support for Google Gemini and OpenAI Codex. Through carefully designed plans and a professional tech community, we provide developers with reliable service guarantees and continuous technical support, making AI-assisted programming a true productivity tool. Click <a href="https://etok.ai">here</a> to register!</td>
</tr>

<tr>
<td width="180"><a href="https://aigocode.com/invite/SUB2API"><img src="assets/partners/logos/aigocode.png" alt="AIGoCode" width="150"></a></td>
<td>Thanks to AIGoCode for sponsoring this project! AIGoCode is an all-in-one platform that integrates Claude Code, Codex, and the latest Gemini models, providing you with stable, efficient, and highly cost-effective AI coding services. The platform offers flexible subscription plans, zero risk of account suspension, direct access with no VPN required, and lightning-fast responses. AIGoCode has prepared a special benefit for sub2api users: if you register via <a href="https://aigocode.com/invite/SUB2API">this link</a>, you'll receive an extra 10% bonus credit on your first top-up!</td>
</tr>

<tr>
<td width="180"><a href="https://code.silkapi.com/register?aff=SUB2API"><img src="assets/partners/logos/silkapi.png" alt="silkapi" width="150"></a></td>
<td>Thanks to SilkAPI for sponsoring this project! <a href="https://code.silkapi.com/register?aff=SUB2API">SilkAPI</a> is a relay service built on Sub2API, specializing in providing high-speed and stable Codex API relay.</td>
</tr>

<tr>
<td width="180"><a href="https://ylscode.com/"><img src="assets/partners/logos/ylscode.png" alt="ylscode" width="150"></a></td>
<td>Thanks to YLS Code for sponsoring this project! <a href="https://ylscode.com/">YLS Code</a> is dedicated to building secure enterprise-grade Coding Agent productivity services, offering stable and fast Codex / Claude / Gemini subscription services along with pay-as-you-go API options for flexible choices. Register now for a limited-time 3-day Codex trial bonus!</td>
</tr>

<tr>
<td width="180"><a href="https://www.aicodemirror.com/register?invitecode=KMVZQM"><img src="assets/partners/logos/AICodeMirror.jpg" alt="AICodeMirror" width="150"></a></td>
<td>Thanks to AICodeMirror for sponsoring this project! AICodeMirror provides official high-stability relay services for Claude Code / Codex / Gemini CLI, with enterprise-grade concurrency, fast invoicing, and 24/7 dedicated technical support. Claude Code / Codex / Gemini official channels at 38% / 2% / 9% of original price, with extra discounts on top-ups! AICodeMirror offers special benefits for sub2api users: register via <a href="https://www.aicodemirror.com/register?invitecode=KMVZQM">this link</a> to enjoy 20% off your first top-up, and enterprise customers can get up to 25% off!</td>
</tr>

<tr>
<td width="180"><a href="https://shop.bmoplus.com/?utm_source=github"><img src="assets/partners/logos/bmoplus.jpg" alt="bmoplus" width="150"></a></td>
<td>Huge thanks to BmoPlus for sponsoring this project! BmoPlus is a highly reliable AI account provider built strictly for heavy AI users and developers. They offer rock-solid, ready-to-use accounts and official top-up services for ChatGPT Plus / ChatGPT Pro (Full Warranty) / Claude Pro / Super Grok / Gemini Pro. By registering and ordering through <a href="https://shop.bmoplus.com/?utm_source=github">BmoPlus - Premium AI Accounts & Top-ups</a>, users can unlock the mind-blowing rate of 10% of the official GPT subscription price (90% OFF)</td>
</tr>

<tr>
<td width="180"><a href="https://bestproxy.com/?keyword=a2e8iuol"><img src="assets/partners/logos/bestproxy.png" alt="bestproxy" width="150"></a></td>
<td>Thanks to Bestproxy for sponsoring this project! <a href="https://bestproxy.com/?keyword=a2e8iuol">Bestproxy</a> provides high-purity residential IPs with dedicated one-IP-per-account support. By combining real home networks with fingerprint isolation, it enables link environment isolation and reduces the probability of association-based risk control.</td>
</tr>

<tr>
<td width="180"><a href="https://pateway.ai/?ch=1tsfr51"><img src="assets/partners/logos/pateway.png" alt="pateway" width="150"></a></td>
<td>Thanks to PatewayAI for sponsoring this project! <a href="https://pateway.ai/?ch=1tsfr51">PatewayAI</a> is a premium API relay built for heavy AI developers, offering the full Claude and Codex series sourced 100% from official providers, with transparent token-level billing. Enterprise plans include high concurrency, dedicated management, contracts, and invoicing. Register now to get $3 in trial credits, top-ups from 60% off, and referral bonuses up to $150.</td>
</tr>

<tr>
<td width="180"><a href="https://api.pptoken.org/register?promo=SUB2API"><img src="assets/partners/logos/pptoken.png" alt="pptoken" width="150"></a></td>
<td>Thanks to PPToken.org for sponsoring this project! <a href="https://api.pptoken.org/register?promo=SUB2API">PPToken.org</a> specializes in GPT model API relay services, supporting Codex, Claude Code, OpenAI-compatible clients, and Gemini CLI integration. Top-ups are 1:1 (¥1 = $1 credit); GPT models start at 0.16x rate multiplier, with overall cost at roughly 2.2% of official pricing and first-token latency around 1 second — ideal for developers seeking low-cost, high-speed access to GPT model capabilities. Technical support: 24/7 real human responses (no bots), @tech in the group chat and get a reply within 10 minutes. Sponsor benefit: the first 200 users who register via the <a href="https://api.pptoken.org/register?promo=SUB2API">exclusive registration link</a> and enter promo code `SUB2API` can claim free Codex / Claude Code trial credits — no minimum spend, no card required.
</td>
</tr>

<tr>
<td width="180"><a href="https://runapi.co/register?aff=fu2E"><img src="assets/partners/logos/runapi.png" alt="RunAPI" width="150"></a></td>
<td>Thanks to RunAPI for sponsoring this project! <a href="https://runapi.co/register?aff=fu2E">RunAPI</a> is an efficient and stable API platform and OpenRouter alternative. With one API Key, you can access 150+ popular models including OpenAI, Claude, Gemini, DeepSeek, and Grok, with pricing as low as 10% of the original rate. It is highly stable and seamlessly compatible with tools such as Claude Code and OpenClaw.
</td>
</tr>

<tr>
<td w