> For the complete documentation index, see [llms.txt](https://docs.tensorx.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tensorx.ai/ai-coding-assistants/aider.md).

# Aider

[Aider](https://aider.chat/) is an AI pair programming tool that works in your terminal. It integrates with TensorX through its OpenAI-compatible API support.

## Prerequisites

* Aider installed (`pip install aider-chat`)
* TensorX API key from [app.tensorx.ai](https://app.tensorx.ai)

## Configuration

### Environment Variables

Set the following environment variables to connect Aider to TensorX:

```bash
# Mac/Linux
export OPENAI_API_BASE=https://api.tensorx.ai/v1
export OPENAI_API_KEY=your-tensorx-api-key

# Windows (PowerShell)
$env:OPENAI_API_BASE = "https://api.tensorx.ai/v1"
$env:OPENAI_API_KEY = "your-tensorx-api-key"

# Windows (Command Prompt)
setx OPENAI_API_BASE https://api.tensorx.ai/v1
setx OPENAI_API_KEY your-tensorx-api-key
```

### Using with Aider

Navigate to your project directory and start Aider with a TensorX model:

```bash
cd /path/to/your/project

# Use with Claude models via TensorX
aider --model openai/claude-sonnet-4-20250514

# Use with GPT models via TensorX
aider --model openai/gpt-4o
```

The `openai/` prefix tells Aider to use the OpenAI-compatible endpoint.

## Persistent Configuration

You can also set these in a `.env` file in your project directory:

```env
OPENAI_API_BASE=https://api.tensorx.ai/v1
OPENAI_API_KEY=your-tensorx-api-key
```

Or use Aider's YAML configuration file (`.aider.conf.yml`):

```yaml
openai-api-base: https://api.tensorx.ai/v1
openai-api-key: your-tensorx-api-key
model: openai/claude-sonnet-4-20250514
```

## Available Models

Check [TensorX Models](/api-reference/models.md) for the full list of available models. Popular options include:

| Model                        | Best For                           |
| ---------------------------- | ---------------------------------- |
| `claude-sonnet-4-20250514`   | Complex reasoning, code generation |
| `claude-3-5-sonnet-20241022` | General coding tasks               |
| `gpt-4o`                     | Fast responses, multi-modal        |
| `gpt-4-turbo`                | Large context, document analysis   |

## Troubleshooting

### Empty responses

If you receive empty responses, verify:

1. Your API key is correctly set
2. The base URL includes `/v1` at the end
3. The model name uses the `openai/` prefix

### Model warnings

Aider may show warnings for unfamiliar models. These can be safely ignored as TensorX handles model compatibility.

## Resources

* [Aider Documentation](https://aider.chat/docs/)
* [TensorX API Reference](/api-reference/overview.md)


---

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

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