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

# Data Append (Reverse Email Lookup API)

> Retrieve contact information from email addresses

Retrieve the full name, avatar, or both from an email address using the DeBounce data enrichment engine.

## Full Name + Avatar

To receive enriched contact information (full name and avatar), use the [Single Validation API](/api-reference/endpoint/single-validation) with the following parameter:

```
&append=true
```

This activates the enrichment engine for the request.

<Note>
  <strong>Pricing</strong><br />
  Each successful enrichment request costs <strong>20 extra credits</strong>.
</Note>

## Avatar Only

If you only need a profile photo, add:

```
&photo=true
```

This retrieves the avatar (when available) alongside the standard validation response.

<Note>
  <strong>Pricing</strong><br />
  Each successful avatar lookup costs <strong>1 extra credit</strong>.
</Note>

## Demo

<Tip>
  Try the data enrichment demo here: <Link href="https://debounce.com/solutions/data-enrichment/" target="_blank">Data Enrichment Demo</Link>
</Tip>