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

# Overview

All Orchestro participants, sometimes referred to as agents, can fulfill one or more of four defined roles: shipper, origin carrier, middle-mile carrier, and last-mile carrier.

For example, a participant may choose to function as a shipper, origin carrier, last mile carrier and a middle mile carrier.

* **Shipper**: The Shipper in Orchestro is the company that initiates the shipment of goods. They provide details about the items to  be shipped.

* **Origin Carrier**:  The origin Carrier is responsible for transporting goods and delivering packages.

* **Middle Mile Carrier**: The middle mile Carrier is responsible for transporting goods over long distances between the origin and final destination.

* **Last Mile Carrier**:  The last-mile carrier plays the final role in the Orchestro network, ensuring the shipment reaches the final destination.

<CardGroup cols={2}>
  <Card title="Shipper" icon="square-1" href="/dev/participants/participant-roles/shippers">
    Understand your role as a Shipper in Orchestro
  </Card>

  <Card title="Origin Carrier" icon="square-2" href="/dev/participants/participant-roles/origin-carrier">
    Understand your role as an Origin Carrier in Orchestro
  </Card>
</CardGroup>