> ## Documentation Index
> Fetch the complete documentation index at: https://terminal49-mintlify-changelog-april-1775488342.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# 1. Start Here

So you want to start tracking your ocean shipments and containers and you have a few BL numbers. Follow the guide.

Our API responses use [JSONAPI](https://jsonapi.org/) schema. There are [client libraries](https://jsonapi.org/implementations/#client-libraries) available in almost every language. Our API should work with these libs out of the box.

Our APIs can be used with any HTTP client; choose your favorite! We love Postman, it's a friendly graphical interface to a powerful cross-platform HTTP client. Best of all it has support for the OpenAPI specs that we publish with all our APIs. We have created a collection of requests for you to easily test the API endpoints with your API Key. Link to the collection below.

<Card icon="caret-right" href="https://www.postman.com/terminal49-api/terminal49-api/collection/x2podso/terminal49-api-reference-public">
  **Run in Postman**
</Card>

***

## Get an API Key

Sign in to your Terminal49 account and go to your [developer portal](https://app.terminal49.com/developers/api-keys) page to get your API key.

### Authentication

When passing your API key it should be prefixed with `Token`. For example, if your API Key is 'ABC123' then your Authorization header would look like:

```
"Authorization": "Token ABC123"
```