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

# Authentication

> How to authenticate with the Fundable API

## API Key Authentication

All Fundable API requests require authentication via a Bearer token in the `Authorization` header.

```bash theme={null}
Authorization: Bearer vg_xxxxxxxxxxxx_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
```

### Getting Your API Key

API keys are available through your Fundable account. Get your key [here](https://www.tryfundable.ai/api-access/) -- your first 50 credits are free. You can purchase credits directly or through a Fundable subscription.

### Key Format

API keys follow the format: `vg_[12_hex_chars]_[32_base64url_chars]`

### Usage

Include your API key as a Bearer token in every request:

```bash theme={null}
curl -X GET "https://www.tryfundable.ai/api/v1/deals" \
  -H "Authorization: Bearer YOUR_API_KEY"
```