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License Verification and Activation API

Security & Cybersecurity

License verification API for validating license keys, enforcing activation limits, and preventing key sharing for software, SaaS, plugins, and desktop apps.

Free 7-Day Trial

100% uptime 210ms avg MCP ready

Delivery Assurance API

Communication & Messaging

Delivery Assurance API: Improve communication integrity by verifying email addresses, ensuring syntax accuracy, deliverability and filtering out disposable or potentially harmful addresses.

100% uptime 75ms avg MCP ready

Communication Authenticator API

Communication & Messaging

"Communication Authenticator API: Ensure email accuracy effortlessly. Confirm deliverability, syntax, and domain validity for seamless communication. Simplify your verification process."

Free 7-Day Trial

100% uptime 153ms avg MCP ready

Email Trust Validator API

Security & Cybersecurity

A secure email validation API that checks format, domain configurations, and email risks, delivering actionable insights and reliability scores.

Free 7-Day Trial

100% uptime 69ms avg MCP ready

MCA Corporate Verification API

Company Data

The MCA Corporate Verification API provides a secure and efficient way to verify if your merchants are registered with the Registrar of Companies in India and have the same details as expected. This helps to make your onboarding process faster and smarter, while also ensuring that it is safer and more reliable.

Free 7-Day Trial

100% uptime 640ms avg MCP ready

Global Email Validation and Deliverability API

Communication & Messaging

Validates email addresses for syntax, MX records, disposable domains, role-based addresses, and domain typos, then returns a weighted risk score and deliverability verdict. Supports single and batch validation.

Free 7-Day Trial

100% uptime 183ms avg MCP ready

Gumroad License Validation Backend API

Commerce & eCommerce

License validation backend for Gumroad and direct software sellers. Verify keys, enforce activation limits, and prevent key sharing without building custom infrastructure.

Free 7-Day Trial

100% uptime 113ms avg MCP ready

Cloud License Management License Verification and Activation API

Security & Cybersecurity

Simplify your licensing process with our Cloud License Management API for efficient license verification and activation.

Free 7-Day Trial

100% uptime 282ms avg MCP ready

Software Licensing Solutions License Verification and Activation API

Security & Cybersecurity

Optimize software ownership with our Software Licensing Solutions API for reliable license verification and activation.

Free 7-Day Trial

100% uptime 129ms avg MCP ready

Digital Product Security License Verification and Activation API

Security & Cybersecurity

Safeguard digital products with our Digital Product Security API for robust license verification and activation.

Free 7-Day Trial

100% uptime 314ms avg MCP ready

License Key Management License Verification and Activation API

Security & Cybersecurity

Streamline your software's security with our License Key Management API for seamless verification and activation.

Free 7-Day Trial

100% uptime 137ms avg MCP ready

Key Sharing Prevention License Verification and Activation API

Security & Cybersecurity

Protect your revenue with our Key Sharing Prevention API, ensuring secure license verification and activation processes.

Free 7-Day Trial

100% uptime 315ms avg MCP ready

Checkmail API

Communication & Messaging

Email verification API with real SMTP RCTP TO check, DNS, disposable, catch-all, and role-based detection in a single request.

Free 7-Day Trial

100% uptime 218ms avg MCP ready

Digital Product Passport API

Legal & Compliance

EU-Compliance: Digital Product Passport (DPP) Immutable QR Engine. Guaranteed 10-year URL persistence for Textile and Battery ESPR mandates (March 2026). High-error-correction QR generation optimized for industrial label printing. Frankfurt (EU-Central) data residency.

Free 7-Day Trial

100% uptime 524ms avg MCP ready

Digital Signature Verification API

Legal & Compliance

Digital Signature Verification API ensures compliance by validating electronic signatures, including QES and AdES.

Free 7-Day Trial

100% uptime 383ms avg MCP ready

Mail Assurance API

Communication & Messaging

Mail Assurance API Validates email addresses in real time, confirming the existence of the mailbox, ensuring accuracy and reliability in email delivery.

Free 7-Day Trial

100% uptime 797ms avg MCP ready

Communication Validation API

Communication & Messaging

Elevate your communication with our Communication Validation API seamless integration, real-time processing, and precision to ensure accurate, reliable, and secure email verification.