> For the complete documentation index, see [llms.txt](https://docs.transferchain.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.transferchain.io/transferchain-sdk/s4/using-transferchain-s4/initialize.md).

# Initialize

To start using TransferChain S4, you'll need to run the container with your organization’s access credentials. These credentials will be provided upon request (see Authentication section).

```bash
docker run --name transferchain-s4 \
  -v ./env/s4.yaml:/etc/transferchain/s4.yaml \
  -v ./test/data/transferchain:/var/data/transferchain \
  -v ./test/log/transferchain:/var/log/transferchain \
  -e LOG_PATH=/var/log/transferchain \
  -e PORT=8080 \
  -e WITHOUT_LISTEN=true \
  -p "8080:8080" \
  transferchain/transferchain-s4:latest
```

#### Environment Variables

* `API_KEY`: Your private API key.
* `API_SECRET`: Secret associated with your account.
* `IDENTIFIER` : Identifier provided by TransferChain.
* `UUID`: UUID provided by TransferChain.

Once initialized, the service is available at `http://localhost:9000`.

Please contact for Environment Variables: <support@transferchain.io><br>