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

# Get a Contact by Reference Source

> Returns the contact carrying the given reference from an external system, for example the donor record in the platform you sync from. References are set when the contact is created or imported, or through the Create a Contact Reference endpoint.



## API Specification

The full API specification for this endpoint is available in the [documentation index](https://docs.virtuous.org/llms.txt).