What is sub2api?
sub2api is an open-source AI API gateway for subscription quota distribution. The project describes a unified way to access Claude, OpenAI, Gemini, and Grok subscriptions, including shared use to distribute costs. The repository presents sub2api as a technical learning and research project, making that stated purpose important when evaluating possible uses.
sub2api is published in a public GitHub repository with source directories for a backend and frontend, alongside deployment and documentation directories. The repository identifies an LGPL-3.0 license. These details establish sub2api as an available software project rather than evidence of a separately priced, managed gateway service.
What sub2api can do
sub2api focuses on bringing subscription access together through an AI API gateway. The repository description names the supported subscription providers and highlights quota distribution, sharing, cost allocation, and continued use of native tools. The supplied excerpt does not identify specific native client integrations or explain the gateway’s underlying routing behavior.
- sub2api unifies access to Claude, OpenAI, Gemini, and Grok subscriptions.
- sub2api provides an AI API gateway for subscription quota distribution.
- sub2api supports shared subscription use to distribute costs.
- sub2api supports continued use of native tools.
How sub2api is accessed
sub2api is accessed as a public GitHub software project. The repository includes README files in English, Chinese, and Japanese, a development guide, a Dockerfile, and deployment-related files. The supplied text lists these resources but does not provide an installation sequence, configuration requirements, authentication instructions, or a documented client connection procedure.
Who sub2api is for
sub2api is relevant to developers and technical researchers examining AI subscription gateways and shared quota access. The project explicitly limits its stated purpose to technical learning and research. The subscription-sharing description provides concrete evaluation scenarios, but does not establish permission from upstream providers or authorization from the developers to run a commercial service.
- sub2api supports research into unified access across the named subscription providers.
- sub2api supports exploring shared subscription quota distribution.
- sub2api supports evaluating subscription cost sharing while retaining native tool use.
sub2api pricing and availability
sub2api is available as an open-source project under LGPL-3.0 through its public repository. The supplied project text does not state a hosted subscription price, a paid software tier, or a usage-based gateway charge. Open-source availability should not be interpreted as a claim that upstream AI subscriptions or their usage are included at no charge.
sub2api strengths and limitations
sub2api combines a stated multi-provider subscription scope with shared quota distribution and publicly available source code. Those capabilities are accompanied by explicit usage warnings. The repository says users bear the risks arising from possible violations of upstream agreements, requires compliance with local laws, and disclaims author liability for several kinds of operational harm.
- sub2api use may violate Anthropic or other upstream providers’ terms of service.
- sub2api is provided for technical learning and research only.
- sub2api authors disclaim liability for account bans, service interruptions, and data loss.
- sub2api developers state that they have not authorized commercial operations based on the project.
sub2api FAQ
What is sub2api?
sub2api is an open-source AI API gateway for subscription quota distribution. The project describes unified access to Claude, OpenAI, Gemini, and Grok subscriptions, with shared use to distribute costs and support for continued use of native tools.
Is sub2api free?
sub2api is available as an open-source project under LGPL-3.0 through a public GitHub repository. The supplied page does not state a hosted service price or paid software plan, and does not claim that upstream AI subscriptions are included.
Which AI subscriptions does sub2api support?
sub2api names Claude, OpenAI, Gemini, and Grok subscriptions in its description of unified access. The project also describes subscription quota distribution and shared use, but the supplied excerpt does not detail provider-specific setup or compatibility requirements.
Who is sub2api for?
sub2api is provided for technical learning and research purposes, making developers and technical researchers its relevant audience. The described use cases include unified AI subscription access, shared quota distribution, and cost sharing, subject to the repository’s usage warnings.
What are the risks of using sub2api?
sub2api warns that use may violate Anthropic or other upstream providers’ terms of service. The repository assigns those risks to users, requires lawful use, and disclaims author liability for account bans, service interruptions, data loss, and other resulting damages.
Do the developers authorize commercial services based on sub2api?
sub2api developers state that they have never authorized any individual or organization to conduct commercial operations based on the project. The repository says such activities are unrelated to the developers and places resulting disputes, losses, and legal liabilities on the operators.
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