Sub2API

AI API Gateway Platform for Subscription Quota Distribution

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Sub2API officially uses only the domains sub2api.org and pincc.ai. Other websites using the Sub2API name may be third-party deployments or services and are not affiliated with this project. Please verify and exercise your own judgment.

Demo

Try Sub2API online: https://demo.sub2api.org/

Demo credentials (shared demo environment; not created automatically for self-hosted installs):

| Email | Password | |-------|----------| | admin@sub2api.org | admin123 |

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
• Admin Dashboard - Web interface for monitoring and management
• External System Integration - Embed external systems (e.g. payment, ticketing) via iframe to extend the admin dashboard

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Ecosystem

Community projects that extend or integrate with Sub2API:

| Project | Description | Features | |---------|-------------|----------| | Sub2ApiPay | Self-service payment system | Self-service top-up and subscription purchase; supports YiPay protocol, WeChat Pay, Alipay, Stripe; embeddable via iframe | | sub2api-mobile | Mobile admin console | Cross-platform app (iOS/Android/Web) for user management, account management, monitoring dashboard, and multi-backend switching; built with Expo + React Native |

Tech Stack

| Component | Technology | |-----------|------------| | Backend | Go 1.25.7, Gin, Ent | | Frontend | Vue 3.4+, Vite 5+, TailwindCSS | | Database | PostgreSQL 15+ | | Cache/Queue | Redis 7+ |

Nginx Reverse Proxy Note

When using Nginx as a reverse proxy for Sub2API (or CRS) with Codex CLI, add the following to the http block in your Nginx configuration:

underscores_in_headers on;

Nginx drops headers containing underscores by default (e.g. session_id), which breaks sticky session routing in multi-account setups.

Deployment

Method 1: Script Installation (Recommended)

One-click installation script that downloads pre-built binaries from GitHub Releases.

Prerequisites

• Linux server (amd64 or arm64)
• PostgreSQL 15+ (installed and running)
• Redis 7+ (installed and running)
• Root privileges

Installation Steps

curl -sSL https://raw.githubusercontent.com/Wei-Shaw/sub2api/main/deploy/install.sh | sudo bash

The script will:

1. Detect your system architecture
2. Download the latest release
3. Install binary to /opt/sub2api
4. Create systemd service
5. Configure system user and permissions

Post-Installation

# 1. Start the service
sudo systemctl start sub2api

# 2. Enable auto-start on boot
sudo systemctl enable sub2api

# 3. Open Setup Wizard in browser
# http://YOUR_SERVER_IP:8080

The Setup Wizard will guide you through:

• Database configuration
• Redis configuration
• Admin account creation

Upgrade

You can upgrade directly from the Admin Dashboard by clicking the Check for Updates button in the top-left corner.

The web interface will:

• Check for new versions automatically
• Download and apply updates with one click
• Support rollback if needed

Useful Commands

# Check status
sudo systemctl status sub2api

# View logs
sudo journalctl -u sub2api -f

# Restart service
sudo systemctl restart sub2api

# Uninstall
curl -sSL https://raw.githubusercontent.com/Wei-Shaw/sub2api/main/deploy/install.sh | sudo bash -s -- uninstall -y

Method 2: Docker Compose (Recommended)

Deploy with Docker Compose, including PostgreSQL and Redis containers.

Prerequisites

• Docker 20.10+
• Docker Compose v2+

Quick Start (One-Click Deployment)

Use the automated deployment script for easy setup:

# Create deployment directory
mkdir -p sub2api-deploy && cd sub2api-deploy

# Download and run deployment preparation script
curl -sSL https://raw.githubusercontent.com/Wei-Shaw/sub2api/main/deploy/docker-deploy.sh | bash

# Start services
docker compose up -d

# View logs
docker compose logs -f sub2api

What the script does:

• Downloads docker-compose.local.yml (saved as docker-compose.yml) and .env.example
• Generates secure credentials (JWT_SECRET, TOTP_ENCRYPTION_KEY, POSTGRES_PASSWORD)
• Creates .env file with auto-generated secrets
• Creates data directories (uses local directories for easy backup/migration)
• Displays generated credentials for your reference

Manual Deployment

If you prefer manual setup:

# 1. Clone the repository
git clone https://github.com/Wei-Shaw/sub2api.git
cd sub2api/deploy

# 2. Copy environment configuration
cp .env.example .env

# 3. Edit configuration (generate secure passwords)
nano .env

Required configuration in .env:

# PostgreSQL password (REQUIRED)
POSTGRES_PASSWORD=your_secure_password_here

# JWT Secret (RECOMMENDED - keeps users logged in after restart)
JWT_SECRET=your_jwt_secret_here

# TOTP Encryption Key (RECOMMENDED - preserves 2FA after restart)
TOTP_ENCRYPTION_KEY=your_totp_key_here

# Optional: Admin account
ADMIN_EMAIL=admin@example.com
ADMIN_PASSWORD=your_admin_password

# Optional: Custom port
SERVER_PORT=8080

Generate secure secrets:

# Generate JWT_SECRET
openssl rand -hex 32

# Generate TOTP_ENCRYPTION_KEY
openssl rand -hex