LLM API gateway for Claude, GPT & Gemini
Route every large language model through one endpoint and one key. ClaudeN unifies billing, failover and rate control so you can mix providers without maintaining three integrations.
ClaudeN AI is an LLM API gateway that puts Claude, GPT and Gemini behind a single OpenAI-compatible endpoint at https://clauden.ai/v1. Instead of managing separate accounts, keys and invoices for each provider, you fund one prepaid balance with USDT or PayPal and route requests to any model. The gateway handles unified billing, provider failover and rate control, so your code stays simple while you keep full flexibility over which model runs each request.
Why route through a gateway
One endpoint, one key
A single OpenAI-compatible key reaches Claude, GPT and Gemini — no per-provider keys to rotate.
Unified billing
All usage is deducted from one prepaid balance funded by USDT or PayPal. No credit card, no three invoices.
Failover & routing
Route each request to the best model and fail over to another provider without changing your code.
Rate control
Manage throughput and spend from one place instead of tuning limits across separate provider dashboards.
How the gateway works
- Create an account — Sign up with email and get free trial credit — no card required to start.
- Fund one balance — Top up with USDT or PayPal. That single balance powers every model through the gateway.
- Point to the endpoint — Set your OpenAI client base URL to https://clauden.ai/v1 and add your ClaudeN key.
- Route to any model — Set the model name to Claude, GPT or Gemini per request. The gateway handles billing and failover.
Resources
LLM API gateway — frequently asked questions
What is an LLM API gateway?
An LLM API gateway is a single service that sits in front of multiple model providers. ClaudeN gives you one OpenAI-compatible endpoint and key that routes to Claude, GPT and Gemini, with unified billing, failover and rate control.
Can I fail over between providers?
Yes. Because every provider is reached through the same endpoint, you can retry a failed request against a different model by changing only the model name — no separate SDK or account needed.
How is billing unified?
All usage across Claude, GPT and Gemini is deducted per token from one prepaid balance that you fund with USDT or PayPal, so you get a single spend view instead of three provider invoices.
Do I need accounts with each provider?
No. One ClaudeN account and key is enough. The gateway holds the provider relationships, so you never open direct Anthropic, OpenAI or Google accounts.
Is it OpenAI-compatible?
Yes. The gateway speaks the OpenAI Chat Completions format, so you reuse your existing OpenAI SDK and only change the base URL and key.
Sign up and get $5 free credit
Route every large language model through one endpoint and one key. ClaudeN unifies billing, failover and rate control so you can mix providers without maintaining three integrations.
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