A robust email verification utility designed to confirm deliverability and protect sender reputation without managing multiple vendor accounts.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install email-validator
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install email-validator using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is Email Validator?
The Email Validator is a specialized tool within the ecosystem of Openclaw Skills that enables developers to verify email addresses in real-time. It effectively filters out invalid, disposable, or risky email addresses to ensure that your communication reaches real users, thereby reducing bounce rates and improving your overall sender reputation. By leveraging a unified API, this skill streamlines the process of list cleaning and user verification for modern applications.
Built to be developer-friendly, this skill integrates seamlessly into existing workflows. It removes the friction of maintaining various third-party subscriptions by utilizing a pay-as-you-go model through SkillBoss. Whether you are building a signup form or managing large-scale marketing campaigns, this tool provides the technical infrastructure needed for high-quality data validation.
Email Validator Use Cases
- Verifying user signups in real-time to prevent database pollution from fake emails.
- Cleaning and scrubbing legacy mailing lists before high-volume email campaigns.
- Reducing bounce rates for transactional emails to improve domain authority.
- Protecting against fraudulent registrations by identifying disposable email providers.
How Email Validator Works
- The user or application sends an email address or validation request to the skill endpoint.
- The system authenticates the request using the SKILLBOSS_API_KEY environment variable.
- The skill performs a comprehensive check including syntax validation, MX record verification, and mailbox existence.
- A structured JSON response is returned containing the deliverability status and validity details.
Email Validator Setup
- Obtain an API key by visiting the SkillBoss console and following the registration steps.
- Configure your environment by setting your API key:
export SKILLBOSS_API_KEY='your_api_key_here'
- Execute a test validation using the following CLI command:
curl https://api.heybossai.com/v1/run \
-H "Authorization: Bearer $SKILLBOSS_API_KEY" \
-d '{"model": "email-validator", "input": {"prompt": "validate [email protected]"}}'
Email Validator Data Schema & Taxonomy
The skill returns a structured response that details the verification results for the provided input. Key fields include:
| Property | Description |
|---|---|
email |
The original email address submitted for validation. |
valid |
Boolean indicating if the email is structurally and technically deliverable. |
reason |
Technical reason for invalidation (e.g., DNS_FAILURE, SMTP_ERROR). |
is_disposable |
Flag indicating if the email belongs to a temporary or disposable provider. |
Email Validator Advanced Features
- Unified access to 100+ AI services via a single authentication key within Openclaw Skills.
- Pay-as-you-go pricing structure eliminates the need for expensive monthly subscriptions.
- Includes $2 in free credits for new users to test integration and performance immediately.
- High-performance API infrastructure designed for low-latency validation in production environments.
SKILL.md
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