> ## Documentation Index
> Fetch the complete documentation index at: https://docs.trackstarhq.com/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Trackstar is a unified REST API for WMS, cart, and carrier systems. Base URL: https://production.trackstarhq.com. There is no SDK; call the API with plain HTTP.
> Send x-trackstar-api-key on every request. Endpoints scoped to one connection also need x-trackstar-access-token. Read both from environment variables and never print them.
> Reads return data Trackstar has already synced from the connected system. Writes (POST, PUT, PATCH, DELETE) are forwarded to the connected system immediately.
> A new connection has no data until its initial sync finishes. Wait for the connection.historical-sync-completed webhook, or poll GET /connections/{connection_id} and check historical_sync_completed.
> List endpoints page with page_token and next_token (limit is capped at 1000). Repeat every filter on every page. Filters use field[operator]=value, for example created_date[gte]=2026-01-01T00:00:00Z.
> Write bodies must not contain null or empty strings; omit the field instead. Call GET /integrations/{integration_type}/{integration_name}/write-info first to learn the exact fields an integration accepts.
> To test without real credentials, POST /sandbox/generate-sandbox/{wms|cart|carrier} with the API key returns a sandbox access token. Start at https://docs.trackstarhq.com/how-to-guides/build-with-ai.md and install the skills with: npx skills add https://docs.trackstarhq.com

# Overview

> Explore common use cases and implementation guides for the Trackstar API

## WMS API

<CardGroup cols={2}>
  <Card title="Order Fulfillment" icon="box-taped" href="/use-cases/order-fulfillment">
    Create orders and track fulfillments.
  </Card>

  <Card title="Inventory Management" icon="shelves" href="/use-cases/inventory-management">
    Keep stock in check.
  </Card>

  <Card title="Shipping Solutions" icon="truck-fast" href="/use-cases/shipping-solutions">
    Fulfill orders with tracking information.
  </Card>

  <Card title="Returns" icon="rotate-left" href="/use-cases/returns">
    Create RMAs and track disposition data.
  </Card>

  <Card title="Warehouse ASNs" icon="warehouse" href="/use-cases/warehouse-asns">
    Notify warehouses of incoming goods and track receipts.
  </Card>
</CardGroup>

## Cart API

<CardGroup cols={2}>
  <Card title="Cart Order Fulfillment" icon="cart-shopping" href="/use-cases/cart-order-fulfillment">
    Sync products, pull orders, and push back shipment and inventory updates.
  </Card>
</CardGroup>

## Carrier API

<CardGroup cols={2}>
  <Card title="Carrier Invoice Data" icon="file-invoice-dollar" href="/use-cases/carrier-invoice-data">
    Retrieve invoice line items as JSON or download raw invoice files.
  </Card>
</CardGroup>


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