> For the complete documentation index, see [llms.txt](https://docs.parcellab.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.parcellab.com/docs/developers/readme.md).

# API v4

Welcome to the parcelLab developer documentation, designed to help you simply send your tracking data and integrate with parcelLab.

## Integrate with API v4

Learn how to connect your systems to parcelLab using API v4.

<button type="button" class="button primary medium" data-action="search" data-scope="space" data-icon="magnifying-glass">Search developer documentation</button>

{% hint style="info" %}

#### API v4 is the recommended version for new integrations

If you have an existing integration, refer to the [API v2 LTS documentation](https://docs.parcellab.com/docs/developers/v2/).
{% endhint %}

## API v4 developer journey

Explore key concepts and resources for working with API v4.

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#### Get started

<table data-view="cards"><thead><tr><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><i class="fa-play">:play:</i> <strong>Quickstart</strong></td><td><a href="/docs/developers/getting-started/quickstart-guide.md">Quickstart Guide</a></td></tr><tr><td><i class="fa-key">:key:</i> <strong>API authentication</strong></td><td><a href="/docs/developers/getting-started/authentication.md">Authentication</a></td></tr><tr><td><i class="fa-triangle-exclamation">:triangle-exclamation:</i> <strong>Error codes</strong></td><td><a href="/docs/developers/getting-started/error-codes.md">Error Codes</a></td></tr></tbody></table>
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#### Understand the data

<table data-view="cards"><thead><tr><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><i class="fa-network-wired">:network-wired:</i> <strong>Data model</strong></td><td><a href="/docs/developers/data-elements/data-model.md">Data Model</a></td></tr><tr><td><i class="fa-triple-chevrons-right">:triple-chevrons-right:</i> <strong>Tracking lifecycle model</strong></td><td><a href="/docs/developers/data-elements/lifecycle-model.md">Tracking Lifecycle Model</a></td></tr><tr><td><i class="fa-location-dot">:location-dot:</i> <strong>Delivery status model</strong></td><td><a href="/docs/developers/data-elements/lifecycle-model/status-model.md">Delivery Status Model</a></td></tr></tbody></table>
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#### Build your integration

<table data-view="cards"><thead><tr><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><i class="fa-paper-plane">:paper-plane:</i> <strong>Send data to parcelLab</strong></td><td><a href="/docs/developers/data-elements/send-data.md">Send Data to parcelLab</a></td></tr><tr><td><i class="fa-box-heart">:box-heart:</i> <strong>Create orders &#x26; trackings</strong></td><td><a href="/docs/developers/orders/create-orders-trackings.md">Create Orders/Trackings</a></td></tr></tbody></table>
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#### Extend your setup

<table data-view="cards"><thead><tr><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><i class="fa-box-circle-check">:box-circle-check:</i> <strong>Integrate the Order Status page</strong></td><td><a href="/docs/developers/status-updates/order-status-page-configuration.md">Order Status Page Configuration</a></td></tr><tr><td><i class="fa-arrows-repeat">:arrows-repeat:</i> <strong>Set up the Returns Portal</strong></td><td><a href="/docs/developers/returns/v2.md">Returns Portal v2 Snippet</a></td></tr><tr><td><i class="fa-calendar-day">:calendar-day:</i> <strong>Display Promise dates</strong></td><td><a href="/docs/developers/promise/api.md">Promise Dates</a></td></tr></tbody></table>
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## Find more API resources

Browse the API reference for a complete list of available endpoints, including request parameters and response schemas.

<a href="/docs/developers/getting-started/api-reference.md" class="button primary medium" data-icon="code">View API reference</a>


---

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