N8N
n8n is a source-available workflow automation platform that lets you connect Clearout with hundreds of apps and services through a visual, node-based editor — no coding required. You can self-host it or use n8n Cloud to automate tasks such as email verification and email discovery whenever data flows between your forms, CRMs, spreadsheets, and other tools.
What Clearout Can Do in n8n
Clearout works with n8n to provide you powerful email-related actions that you can use in your workflows. The two main actions you can do are
Verify Email Address
Validate an email address in real-time to determine its deliverability and quality. Clearout checks syntax, domain validity, mailbox existence, and risk factors to help you filter out invalid or unsafe emails before sending.
Find Email Address
Discover a professional email address in real-time using a person’s name and company domain. Clearout identifies the most likely email pattern and returns pre-verified, deliverable results for outreach.
These actions help you keep your data accurate and make outreach easier.
Prerequisites
Clearout API Token - Log in to your Clearout account and go to Developer → API to create or copy your API token.
n8n Instance - Ensure you have access to your n8n workspace (Cloud or self-hosted).
Setup Clearout on n8n
Configure Authentication
To authenticate your requests, set a header on the HTTP Request node:
Header Name:
AuthorizationHeader Value:
Bearer <YOUR_API_KEY>
Follow these steps inside the node:
Set Authentication to Generic Credential Type.

Set Generic Auth Type to Header Auth.

Click Create New Credential to set up credentials.

In the credential popup:
Fill the Name field as
Authorization.Fill the Value field as
Bearer <YOUR_API_KEY>(replace<YOUR_API_KEY>with the token from the prerequisites).

Click Save.
Set Request Parameters
Configure the node with the following settings:
Method
POST
URL (Email Verification)
https://api.clearout.io/v2/email_verify/instant
URL (Email Finder)
https://api.clearout.io/v2/email_finder/instant
Send Body
True
Body Content Type
JSON

Define the Payload
Pass the name and domain (or company name) in the body of the request — not as query parameters. Use n8n expressions to dynamically map values from previous nodes.
{
"email": "[email protected]",
"timeout": 10000
}{
"name": "Steven Morris",
"domain": "apple.com",
"timeout": 30000,
"queue": false
}
Handle the Response
Once the node is executed, the results will appear in the Output section. For email finding, the response typically includes the discovered email address along with a confidence score. For email verification, it includes the verification status (Valid, Invalid, Catch-all, etc.) and a confidence score.

From here, you can add more nodes (filters, CRM updates, Google Sheets writes, notifications) to route the data based on your workflow logic and fully automate your process with Clearout and n8n.
Clearout provides webhook support to efficiently handle long-running processes without requiring continuous polling. Instead of waiting for a synchronous response, you can configure a webhook URL where Clearout will send the results once processing is complete.
To explore more about Clearout webhooks, refer to the detailed documentation here.
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