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

# Providers

> Configure API keys for Anthropic, OpenAI, Google, xAI, Groq, and OpenRouter

## Supported Providers

| Provider   | Vendor key   | Models served                                               |
| ---------- | ------------ | ----------------------------------------------------------- |
| OpenRouter | `openrouter` | All default panel models via unified API                    |
| Anthropic  | `anthropic`  | `claude-opus`, `claude` (direct)                            |
| OpenAI     | `openai`     | `gpt` (via OpenRouter until direct provider is implemented) |
| Google     | `google`     | `gemini` (via OpenRouter)                                   |
| xAI        | `xai`        | `grok` (via OpenRouter)                                     |
| Nvidia     | `nvidia`     | `nemotron` (via OpenRouter)                                 |
| Groq       | `groq`       | Open-weight models via OpenRouter                           |

## OpenRouter

[OpenRouter](https://openrouter.ai) is the universal fallback. A single `OPENROUTER_API_KEY` is enough to run the full default panel. All five default models (`claude-opus`, `gpt`, `gemini`, `grok`, `nemotron`) are available through OpenRouter.

```bash theme={null}
export OPENROUTER_API_KEY=sk-or-...
```

Or in `config.toml`:

```toml theme={null}
[providers]
openrouter_api_key = "sk-or-..."
```

## Anthropic Direct

The Anthropic direct provider bypasses OpenRouter for `claude-opus` and `claude` calls, reducing latency and avoiding OpenRouter markup. Set `ANTHROPIC_API_KEY` (or `anthropic_api_key` in `[providers]`). In `auto` routing mode, direct is used automatically when the key is present.

```toml theme={null}
[providers]
openrouter_api_key = "sk-or-..."
anthropic_api_key = "sk-ant-..."
```

## Other Vendors

Direct provider implementations for OpenAI, Google, xAI, and Groq are planned. Until implemented, setting their API keys has no effect on routing — requests for those models always go through OpenRouter.

## Verifying Provider Setup

```bash theme={null}
dissent config test
```

Shows which provider handled each model and whether the call succeeded.