# API Reference

## Endpoints

### GET /

Returns the home page HTML.

### GET /predict

Returns the prediction form HTML.

### POST /predict

Predicts test scores based on the provided study hours.

**Request Body**

```json
{
  "hours_studied": 5.5
}
```

| Parameter | Type | Description |
|-----------|------|-------------|
| hours_studied | float | Number of hours studied |

**Response**

```json
{
  "predicted_test_score": 85.6
}
```

## Error Handling

The API uses standard HTTP status codes to indicate the success or failure of requests.

- 200: Success
- 400: Bad request (e.g., negative hours studied)
- 500: Server error
- 503: Service unavailable (model not loaded)