# Using the SDK

To add the echo3D Python SDK to your Python script, include the following import:

```python
from echo3d_api import *
```

To initialize the SDK run:

```python
api = Echo3DAPI(api_key=args.api_key, security_key=args.security_key)
```

To retrieve information on the 3D models in your project use:

```python
model_list = api.retrieve_model_info()
```

To retrieve a list of the 3D models in your project use:

```
api.entries
```

To retrieve a specific entry ID use:

```
api.retrieve(entry) 
```