sub2api

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# Sub2API

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

English | [中文](README_CN.md) | [日本語](README_JA.md)

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## ⚠️ 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.
- **🚫 No Commercial Authorization**: The developers of this project have never authorized any individual or organization to conduct any form of commercial operation based on this project. Any commercial activity conducted in the name of or based on this project is unrelated to this project and its developers, and all resulting disputes, losses, and legal liabilities shall be borne solely by the party conducting such activity.

## ❤️ Sponsors

> [Want to appear here?](mailto:support@sub2api.org)

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<td width="180"><a href="https://cctk.ai/register?aff=SUB2API"><img src="assets/partners/logos/cctk.jpg" alt="CCTK.AI" width="150"></a></td>
<td>Thanks to CCTK.AI for sponsoring this project! <a href="https://cctk.ai/register?aff=SUB2API">CCTK.AI</a> is an AI API gateway focused on stability and cost-effectiveness, offering fast relay services for Claude, OpenAI, Gemini, and other popular models. It works seamlessly with Claude Code, Codex, and other mainstream coding tools, delivering the same model capabilities at a fraction of the official cost. Register via <a href="https://cctk.ai/register?aff=SUB2API">this link</a> for faster, more stable, and more affordable AI API access.</td>
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<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>
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<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>
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<td width="180"><a href="https://apikey.fun/register?aff=SUB2API"><img src="assets/partners/logos/apikey-fun.png" alt="APIKEY.FUN" width="150"></a></td>
<td>Thanks to APIKEY.FUN for sponsoring this project! <a href="https://apikey.fun/register?aff=SUB2API">APIKEY.FUN</a> is one of the core contributors to the sub2api open-source project, dedicated to providing open, stable, and cost-effective AI API access. The platform supports API relay services for Claude, OpenAI, Gemini, and other popular models, with pricing starting from as low as 7% of the original rate. Register via the exclusive link: <a href="https://apikey.fun/register?aff=SUB2API">APIKEY</a> to enjoy a permanent 5% discount on all recharges.</td>
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<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>
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<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>
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<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>
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<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>
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<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>
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<td width="180"><a href="https://api.pptoken.cc/register?promo=SUB2API"><img src="assets/partners/logos/pptoken.png" alt="pptoken" width="150"></a></td>
<td>Thanks to PPToken.cc for sponsoring this project! <a href="https://api.pptoken.cc/register?promo=SUB2API">PPToken.cc</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.cc/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.
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<td width="180"><a href="https://unity2.ai/register?source=sub2api"><img src="assets/partners/logos/unity2.png" alt="unity2" width="150"></a></td>
<td>Thanks to Unity2 for sponsoring this project! <a href="https://unity2.ai/register?source=sub2api">Unity2</a> is a high-performance AI model API relay for individuals, teams, and enterprises, handling 30B+ tokens/day with 5000 RPM concurrency. One API Key works across Claude Code, Codex, OpenAI models, IDE plugins, and Agent workflows, with balance billing, bundled subscriptions, enterprise invoicing, and 1-on-1 support. <a href="https://unity2.ai/register?source=sub2api">Register</a> to claim $2 in balance, pl