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

# OpenRouter

> Access 200+ AI models from multiple providers through a single Corbits proxy

## Overview

The OpenRouter proxy provides pay-per-request access to [OpenRouter](https://openrouter.ai) — a unified gateway to 200+ AI models from OpenAI, Anthropic, Google, Meta, Mistral, and many others. Use a single proxy URL to reach any model. No account or API key required.

|                    |                                      |
| ------------------ | ------------------------------------ |
| **Proxy URL**      | `https://openrouter.api.corbits.dev` |
| **Proxy ID**       | `70`                                 |
| **Default price**  | \$0.01 per request                   |
| **Pricing scheme** | Exact                                |

## Quick start

Install the payment SDK and make a chat completion request:

```javascript theme={null}
import { payer } from "@faremeter/rides";

// Load your Solana keypair
await payer.addLocalWallet(process.env.PAYER_KEYPAIR);

const response = await payer.fetch("https://openrouter.api.corbits.dev/api/v1/chat/completions", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    model: "anthropic/claude-sonnet-4-20250514",
    messages: [{ role: "user", content: "Hello from Corbits!" }],
  }),
});

const data = await response.json();
console.log(data.choices[0].message.content);
```

## Key endpoints

| Endpoint                   | Description                                          |
| -------------------------- | ---------------------------------------------------- |
| `/api/v1/chat/completions` | Generate chat completions (OpenAI-compatible format) |
| `/api/v1/responses`        | Create model responses                               |
| `/api/v1/messages`         | Create messages (Anthropic-compatible format)        |
| `/api/v1/embeddings`       | Generate text embeddings                             |
| `/api/v1/models`           | List all available models                            |
| `/api/v1/models/count`     | Get total count of available models                  |
| `/api/v1/providers`        | List all upstream providers                          |
| `/api/v1/generation`       | Get request and usage metadata                       |
| `/api/v1/credits`          | Check remaining credits                              |
| `/api/v1/key`              | Get current API key info                             |

<Note>
  OpenRouter supports 28 endpoints in total. Use the Discovery API to get the complete list with descriptions.
</Note>

## Model selection

OpenRouter lets you route to any supported model by specifying the `model` parameter in the format `provider/model-name`:

```json theme={null}
{ "model": "openai/gpt-4o" }
{ "model": "anthropic/claude-sonnet-4-20250514" }
{ "model": "google/gemini-2.5-pro-preview-05-06" }
{ "model": "meta-llama/llama-3-70b-instruct" }
{ "model": "mistralai/mistral-large-latest" }
```

See the [OpenRouter model list](https://openrouter.ai/models) for all available models and pricing.

## Discover this merchant

Query the Discovery API to get live details about this proxy:

```bash theme={null}
# Search for this proxy
curl "https://api.corbits.dev/api/v1/search?q=openrouter"

# Get proxy details
curl "https://api.corbits.dev/api/v1/proxies/70"

# List all endpoints with pricing
curl "https://api.corbits.dev/api/v1/proxies/70/endpoints"

# Get the full OpenAPI spec
curl "https://api.corbits.dev/api/v1/proxies/70/openapi"
```

## Notes

* OpenRouter supports both OpenAI-compatible (`/chat/completions`) and Anthropic-compatible (`/messages`) request formats.
* Model availability and pricing varies by provider. The Corbits proxy price is per-request; upstream model costs are included.
* Payment is handled at the proxy layer via x402 — the `@faremeter/rides` SDK manages the challenge/response cycle automatically.