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Best existence check APIs

Real Time Email Checker API

Verify emails in real time, detect valid domains, correct formatting, MX records, gravatars, and blacklists to ensure reliable deliverability.

Communication & Messaging Free 7-Day Trial

100% uptime 191ms avg MCP ready

Face Liveness Check API

Check if the selfie your users take is indeed live, optimally clicked to save in your records, if there are multiple faces detected in the image, and what percentage of the image the face actually covers.

Visual Recognition & Imaging Free 7-Day Trial

100% uptime 353ms avg MCP ready

Domain Availability Checker API

Use this API to check the availability of a certain domain. Be able to retrieve its age as well and if it's available for purchase.

Tools & Utilities Free 7-Day Trial

100% uptime 51ms avg MCP ready

Domain Availability Check API

The Domain Availability Check API efficiently checks the availability of desired domain names instantly, simplifying registration for prompt and informed decisions.

Commerce & eCommerce Free 7-Day Trial

100% uptime 219ms avg MCP ready

Disposable Email Check API

Validates whether an email address is temporary or disposable, returning true or false to facilitate automated filtering.

Finance & Payments Free 7-Day Trial

100% uptime 559ms avg MCP ready

WhatsApp Number Available API

Identifies if a specific phone number is registered with WhatsApp and provides a Boolean result.

Communication & Messaging Free 7-Day Trial

100% uptime 314ms avg MCP ready

WhatsApp Numbers Checker API

Checks whether a phone number is active on the mobile network and returns true or false.

Communication & Messaging Free 7-Day Trial

100% uptime 320ms avg MCP ready

Valid Contact Email API

Check and fetch email addresses seamlessly to maintain a clean and effective mailing list.

Communication & Messaging Free 7-Day Trial

100% uptime 387ms avg MCP ready

Email Existence API

Email Existence API swiftly verifies email addresses, ensuring accuracy for communication channels. Real-time, secure, and seamlessly integrated for optimal data quality.

Communication & Messaging

100% uptime 863ms avg MCP ready

Authentic Email Check API

The Authentic Email Check API quickly and accurately verifies email addresses to ensure reliable communication. It offers real-time, secure verification and integrates smoothly to maintain optimal data quality.

Communication & Messaging

100% uptime 1,120ms avg MCP ready

WhatsApp Check API

Verifies the existence of WhatsApp numbers by receiving a phone number and returning a Boolean value: true or false.

Communication & Messaging Free 7-Day Trial

100% uptime 1,154ms avg MCP ready

WhatsApp Numbers Check API

Checks whether an email address is registered with a valid domain and returns a Boolean value: true or false.

Communication & Messaging Free 7-Day Trial

100% uptime 632ms avg MCP ready

Site Status Checker API

Site Status Checker API allows you to check the status and availability of any website, providing accurate and up-to-date information about its accessibility in real time.

Tools & Utilities Free 7-Day Trial