Validate and format phone numbers globally, detect disposable numbers, providers, locations, time zones, and country details for accurate communication workflows.

Use this API to retrieve the crime score for a given Zip Code in the US. Also, get additional information about crime rates and crime rates for nearby locations as well.

The Valid Phone Checker API verifies the validity and format of phone numbers, providing instant validation and additional data to ensure accuracy in the US and Canada only.

Professional QR Code Generation API with advanced customization options.

The 3D Bin Packing problem is a classic combinatorial optimization problem that has wide applications in logistics, warehousing, transportation, and many other fields. Its core is to reasonably pack a series of three-dimensional items (boxes) of various sizes into a limited number of three-dimensional containers (boxes, cargo containers, etc.), with the typical goal of minimizing the number of containers used or maximizing the utilization rate of containers while satisfying various constraints.

Risk percentage field quantifies burglary likelihood relative to protected homes, simplifying marketing pitches for alarm providers targeting high‑threat postal codes and districts.

A comprehensive identity verification suite providing high-performance tools for document validation and data extraction. MRZ Parser: Fully compliant with ICAO standards (TD1, TD2, TD3, MRVA, MRVB) to extract identity info, document types, and all data from Machine Readable Zones. Document Number Validation: Checksum and format verification for Polish ID cards, Passports, Driving Licenses, and more (9-character alphanumeric support). Polish Identity Validators: Dedicated endpoints for local identifiers: PESEL: National ID number validation. NIP: Tax Identification Number (handles formatted and raw input). REGON: Business registry numbers (supports both 9 and 14-digit formats).

The Tax Code Fetcher USA API delivers precise and up-to-date tax information customized for specific geographical areas across the United States.

The UAE Real Estate API delivers structured, real time access to residential and commercial property listings for seamless integration across digital platforms.

Drive up your open rates and ROI with our 98% accurate email validation, A.I.-driven email scoring, and powerful deliverability tools.

Validate Brazilian NF-e / NFC-e / CT-e XML against current SEFAZ schemas — get per-element typed errors, not a cryptic rejection code.

Retrieve any domain's reputation with this API. Also, know if the site is children-friendly. Make web surfing safe!

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.

Check tax rates and amounts by zip code in the US, including state and local taxes and the final price with taxes included.

The Tax Rates Fetcher API provides exact details of sales tax rates across states, guaranteeing precision in financial transactions.

With Tax Rate USA API you get accurate and up-to-date tax rates for all U.S. jurisdictions. Simplify tax calculations and ensure compliance with ease.

The Domain Register Fetcher API streamlines the process of verifying domain expiration dates. By entering the domain name, users swiftly receive the remaining days until expiration, simplifying domain management and competitor monitoring.

Get and test the best discount calculator for your e-commerce.

Get accurate sales tax rates by ZIP code across the United States, allowing for seamless compliance and easy integration.

FreeCustom.Email is a powerful API that enables users to generate temporary email addresses for seamless online registration and OTP testing. With its user-friendly interface, you can effortlessly create disposable email accounts to bypass spam and enhance privacy, while easily receiving one-time passwords and verification emails without any hassle. Ideal for developers and testers, this API ensures secure and anonymous interactions with online services.

Access accurate sales tax rates by ZIP code across the U.S., ensuring seamless compliance and effortless integration into business systems.

The Domain Expiration Date API allows users to quickly verify the expiration date of any domain by simply entering its name. It promptly returns the remaining days until expiration, making domain management and competitor monitoring tasks easier.

The Commerce Tax Rates API provides up-to-date sales tax rates for accurate and compliant transactions in the United States.

IP Risk Analyzer API evaluates the reputation and risk associated with an IP address to detect possible fraud or suspicious activity.

The Live Exchange Rates API provides information on exchange rates.

Fast and Reliable Company / Business Searches, Reviews, and more from Trustpilot in Real-Time (unofficial API).

The Web Expiry Date Verifier API empowers users to quickly confirm the expiration date of any domain simply by entering its name. It promptly furnishes the remaining days until expiration, streamlining domain management and competitor monitoring tasks.

Explore the Interest Rate Sales by Zip Code API to get accurate, location-specific financial information, streamline calculations and improve economic decision making.

Validates phone numbers in real time, confirming whether they are valid or not, with a quick and accurate true or false response.

Shield your platform from spam with the Validate Emails and Phone Numbers API.

Quickly fetch international contact numbers with the Worldwide Number Fetcher API, simplifying global communication.

Easily fetch current sales tax rates by ZIP code to optimize pricing strategies and enhance customer satisfaction.

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.

Extract precise sales tax rates by ZIP code to streamline transactions and enhance your business operations.

Ensure NFC-e accuracy with our Validation and Error Check API, streamlining your fiscal compliance effortlessly.

Validate and verify NF-e XML documents seamlessly with our reliable NF-e XML Validation Service API.

Check your NF-e XML against current SEFAZ schemas and catch errors before submission.

Verify CT-e XML schema compliance quickly using our CT-e XML Schema Compliance API for hassle-free validations.

Streamline ERP fiscal integration with our ERP Fiscal Integration Validator API, ensuring your documents meet SEFAZ schema requirements.

Detect and pinpoint errors in e-invoice XML with our E-invoice Error Checking API — returns the exact element paths that failed.

Catch schema errors in your fiscal documents with our Fiscal Document XML Validator API, ensuring straightforward compliance checks.

Access comprehensive cycling data worldwide to enhance your cycling insights and analytics.

USA Zip Code Data API is a service that provides developers with access to a comprehensive database of US zip codes and related information.

The Zip Interests Rate USA API automates precise calculations of sales tax, guaranteeing compliance, minimizing errors, and enhancing financial efficiency.

Perform in-depth tax analysis and optimize rates using the Rate Tax Analyzer API for smarter financial planning.

Discover regional tax nuances with Tax Rate Searcher API, enhancing your strategic planning.

Check the fares for any flight you are looking for with this reliable API. Join other travel agencies that trust this service.

Confirm email addresses rapidly to boost marketing effectiveness and user trust in your campaigns.