> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nexllm.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# NexLLM: Unified API Gateway for GPT, Claude & Gemini

> NexLLM gives you one OpenAI-compatible API to access GPT, Claude, and Gemini models — with channel groups, a built-in Playground, and wallet billing.

NexLLM is a unified AI model gateway that lets you call GPT, Claude, and Gemini models through one consistent, OpenAI-compatible API endpoint. Instead of juggling separate SDKs, credentials, and billing accounts for every provider, you point your existing OpenAI client at `https://www.nexllm.ai/v1`, swap in your NexLLM API key, and start making requests immediately — no other code changes required.

## What you can do with NexLLM

* **Access multiple model families from a single endpoint.** Send requests to OpenAI, Anthropic, and Google models using the same base URL and authentication scheme.
* **Organise capacity with channel groups.** Channel groups let you route tokens to different pricing tiers or upstream configurations, giving you granular control over cost and throughput across teams or projects.
* **Test models without writing code.** The built-in **Playground** lets you chat with any available model directly in your browser, making it easy to compare outputs or verify a token before deploying.
* **Monitor usage in real time.** The usage dashboard surfaces per-key token consumption, request counts, and latency logs so you can track spend and debug issues without leaving the platform.
* **Pay through a wallet balance.** NexLLM uses wallet-based billing — top up your balance and usage is deducted automatically, giving you a single invoice across all providers.

## Base URL

All API requests are sent to:

```
https://www.nexllm.ai/v1
```

This endpoint is fully compatible with the OpenAI API schema, so any library that accepts a configurable `base_url` works out of the box.

## Explore the docs

<CardGroup cols={2}>
  <Card title="Registration" icon="user-plus" href="/get-started/registration-and-login">
    Create your NexLLM account and sign in for the first time.
  </Card>

  <Card title="API Keys" icon="key" href="/get-started/getting-your-api-keys">
    Generate, configure, and secure your API keys.
  </Card>

  <Card title="Quickstart" icon="bolt" href="/get-started/quickstart">
    Make your first API call in minutes using curl or the Python SDK.
  </Card>

  <Card title="API Reference" icon="code" href="/api-reference">
    Explore the full list of supported endpoints and request schemas.
  </Card>

  <Card title="Channel Groups" icon="layer-group" href="/channel-groups">
    Learn how to route requests across pricing tiers and upstream providers.
  </Card>

  <Card title="Models" icon="microchip" href="/models">
    Browse all available GPT, Claude, and Gemini models and their identifiers.
  </Card>
</CardGroup>