LLM API proxy for Claude, GPT & Gemini
Route all your LLM traffic through a single proxy. One key, one balance, automatic failover across Claude, GPT and Gemini — no need to manage three integrations.
ClaudeN acts as an LLM API proxy that sits in front of multiple providers. You send requests to one OpenAI-compatible endpoint and the proxy routes them to the right model. Billing is unified, keys are simplified and you can fail over between providers without changing your application code.
Why use an LLM API proxy
One integration, many models
Point your code at a single base URL. Switch providers by changing the model name only.
Unified billing and keys
One prepaid balance and one API key for every model. No juggling multiple vendor dashboards.
Failover and routing
If one provider is slow or rate-limited, route the next request to another without code changes.
Simpler compliance and ops
Centralized logging, spend control and rate limits from one place instead of three.
How to use the LLM proxy
- Sign up for ClaudeN — Create an account and fund a prepaid balance with USDT or PayPal.
- Configure your client — Set the base URL to https://clauden.ai/v1 and use your ClaudeN key in any OpenAI-compatible client.
- Choose the model per request — Set model to claude-..., gpt-... or gemini-... as needed. The proxy handles routing.
- Monitor usage in one place — All spend appears against the same balance. Top up when you need more capacity.
Code example: unified proxy
Point one client at ClaudeN and switch models by name.
from openai import OpenAI
client = OpenAI(
api_key="$CLAUDEN_API_KEY",
base_url="https://clauden.ai/v1",
)
messages = [{"role": "user", "content": "Compare these two options"}]
claude = client.chat.completions.create(model="claude-3-5-sonnet", messages=messages)
gpt = client.chat.completions.create(model="gpt-4o", messages=messages)
gemini = client.chat.completions.create(model="gemini-1.5-pro", messages=messages)
curl https://clauden.ai/v1/chat/completions \
-H "Authorization: Bearer $CLAUDEN_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"claude-3-5-sonnet","messages":[{"role":"user","content":"Hello from one LLM proxy"}]}'
Resources
LLM API proxy — frequently asked questions
What is an LLM API proxy?
An LLM API proxy is a service that receives your requests and forwards them to one or more upstream providers. ClaudeN is a proxy that adds unified billing, key management and failover on top of Claude, GPT and Gemini.
Is it the same as an API gateway?
Very similar. In this context "proxy" and "gateway" both mean a single layer in front of multiple LLM backends that handles auth, billing and routing.
Can I still call providers directly?
Yes. The proxy is optional. You can continue to call Anthropic, OpenAI or Google directly if you prefer, while using ClaudeN for other traffic or as a backup.
Does using a proxy add latency?
The added latency is usually a few tens of milliseconds for routing. For most applications it is negligible compared to model thinking time.
Sign up and get $5 free credit
Route all your LLM traffic through a single proxy. One key, one balance, automatic failover across Claude, GPT and Gemini — no need to manage three integrations.
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