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

# Kitt

> Connect Kitt to verify email addresses in your workflows.

## How to set up Kitt

### Authentication

Kitt uses API key authentication:

1. Log in to your Kitt dashboard
2. Copy your API key
3. Paste the API key in Cargo when connecting

<Note>
  **Code slugs** — integration slug: `kitt` · action: `verifyEmail`. Use it in code as `integrations.kitt.verifyEmail(...)`.
</Note>

## Kitt actions

### Verify email

Verify an email address in real time and get its validity, SMTP status, and a reason when invalid.

**Required fields:**

* **Email**: The email address to verify

**Credits:** 0.05 credits per request

**Use case:** Clean prospect lists before sequencing to protect sender reputation and reduce bounces.

## Best practices

* Verify emails right after enrichment, before they enter any outreach sequence
* Branch workflows on the returned validity and reason to route risky addresses separately
* Cache results to avoid re-verifying the same address repeatedly
* High-volume runs are handled for you: Cargo spreads requests within the connector's rate limit (100 per second)