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Best real time checking APIs

Real Time Email Checker API

Communication & Messaging

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

Free 7-Day Trial

100% uptime 236ms avg MCP ready

Instant Email Validation API

Communication & Messaging

The Instant Email Validation API validates email addresses in real time, ensuring that they exist and can receive emails, returning instant results in JSON format.

Free 7-Day Trial

100% uptime 296ms avg MCP ready

Domain Name Checker API

Tools & Utilities

The Domain Name Checker API quickly verifies domain name availability, simplifying online presence management and ensuring secure acquisition of desired virtual addresses.

Free 7-Day Trial

100% uptime 134ms avg MCP ready

Face Liveness Check API

Visual Recognition & Imaging

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.

Free 7-Day Trial

100% uptime 353ms avg MCP ready

Temporal Email Checker API

Security & Cybersecurity

The Temporal Email Checker API confirms email authenticity by detecting temporary or disposable addresses, crucial for preventing spam and fraud.

Free 7-Day Trial

100% uptime 344ms avg MCP ready

Mail Check API

Communication & Messaging

Validate email addresses in real time with syntax checks, domain verification, MX records, disposable email detection, role-based email detection, and deliverability scoring.

100% uptime 336ms avg MCP ready

URL Broken Checker API

Tools & Utilities

The API verifies URLs, indicating whether they are broken or active, displaying HTTP status codes, errors, and link reliability in real time.

Free 7-Day Trial

100% uptime 503ms avg MCP ready

Bulk Link Status Checker API

Tools & Utilities

Check up to fifty addresses per call, or extract every link of a page and validate each one: status code, redirect chain, response time and a working or broken summary. Smart checking with automatic fallback.

Free 7-Day Trial

100% uptime 256ms avg MCP ready

Real Time Phone Lookup API

Communication & Messaging

Boost your application's reliability with the Real Time Phone Lookup API, ensuring only valid and reachable contacts.

Free 7-Day Trial

100% uptime 11ms 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

Quick Email Verification API

Communication & Messaging

Ensure high-quality leads with the Quick Email Verification API, your fast, reliable solution.

Free 7-Day Trial

100% uptime 84ms avg MCP ready

Real-Time Routing Number Checker API

Finance & Payments

Instantly verify routing numbers to ensure smooth and accurate financial transactions.

Free 7-Day Trial

100% uptime 170ms avg MCP ready

URL Status Check API

Tools & Utilities

Ensure your website's reliability with our URL Status Check API, optimizing user experience effortlessly.

Free 7-Day Trial

100% uptime 415ms avg MCP ready

Valid Contact Email API

Communication & Messaging

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

Free 7-Day Trial

100% uptime 387ms avg MCP ready

Uptime API

Tools & Utilities

Uptimer is a powerful API designed to monitor the uptime and performance of websites and services in real-time. It provides instant alerts and detailed analytics, enabling users to ensure their online assets are always functioning optimally. With customizable monitoring intervals, multi-location checks, and integration capabilities, Uptimer helps businesses maintain high availability and enhance user experiences through proactive problem detection and resolution.

100% uptime 4,334ms avg MCP ready

Site Status Checker API

Tools & Utilities

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.

Free 7-Day Trial

100% uptime 2,396ms avg MCP ready

Verified Email Lookup API

Communication & Messaging

Scrape and curate live email content to stay ahead of your competition and fuel your strategies.

Free 7-Day Trial

100% uptime 653ms avg MCP ready

Global Email Verification API

Communication & Messaging

Efficiently check email status and extract relevant data to optimize your outreach efforts.

Free 7-Day Trial

100% uptime 688ms avg MCP ready

Instant Email Validator API

Communication & Messaging

Get real-time results with our Instant Email Validator API, ensuring reliable communication every time.

Free 7-Day Trial

100% uptime 841ms avg MCP ready

URL Availability Checker API

Tools & Utilities

Rapidly checks the availability of domain names, facilitating quick decision-making.

Free 7-Day Trial

100% uptime 1,124ms avg MCP ready

Instant Email Data Retrieval API

Communication & Messaging

Retrieve essential email data on demand to enhance user engagement and improve marketing campaigns.

Free 7-Day Trial

100% uptime 808ms avg MCP ready

Email Status Verifier API

Communication & Messaging

The Email Status Verifier API validates email addresses in real time, ensuring that they exist and can receive emails, returning instant results in JSON format.

Free 7-Day Trial