Simple API for creating SVG QR codes with an optional error correction level.

Generate realistic, schema-aware synthetic test data for any database schema. 50+ field types, AI prompt-to-schema, pre-built templates, JSON/SQL/CSV output.

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

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.

This API provides JSON access to the technology information of a website which includes all technical information as found on detailed lookups and additional metadata where available.

Receive a domain and a keyword, returning advanced SEO metrics: backlinks, authority, references, positions, inlink rank, and contextual relevance.

Text Coherence Analysis API is a powerful tool that uses natural language processing techniques to evaluate the complexity and coherence of a written text.

This API will help you tag different parts of any speech provided. Tags the provided text with parts of speech (such as nouns, verbs, adjectives, adverbs, etc.)

It leverages artificial intelligence to detect and address offensive language within user comments, promoting digital civility and improving online safety.

AI-generated crypto trading signals with LLM thesis, confidence scoring, TP/SL targets, and technical breakdown for algorithmic trading systems.

Language Matching API assesses and quantifies likeness between text, leveraging advanced NLP for accurate semantic understanding. Versatile and adaptable for diverse applications.

Widget API to calculate Geo Coordinates, Geo Fences and Sky, Sun, Moon, Eclipse information.

It utilizes artificial intelligence to identify and manage offensive language in user comments, fostering digital etiquette and enhancing online safety.

MockHero’s Mock Data API simplifies creating placeholder data, perfect for testing and development needs.

The Synthetic Data Synthetic Data MockHero API allows developers to generate diverse datasets while preserving privacy and compliance.

One of the most popular games in the world can be played or developed using this API.

This endpoint takes the information (string) as input, and provides the JWT-encoded result (string) as output. The output also includes a copy of the input, and a « status » value. Status is « Ok » or « Error: … ».

Fast & reliable online code compilation and execution of APIs for 50+ languages & databases

Governed macro-fragility signal API with live RSI, event-family risk snapshots, and a three-paper DOI-stamped research foundation.

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

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

Evaluates any text and provides a coherence score, assessing its logic, consistency, and clarity.

Unlock the mysteries of your car with our DTC Codes Decoder API! Discover the human-readable version of OBD-II Trouble Codes, empowering you to tackle car repairs with confidence. Delve into the world of automotive diagnostics and make informed decisions.

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

Validate license keys quickly with our License Key Validation API for enhanced software security and user control.

The Love Calculator API blends technology and emotion, offering playful insights into compatibility, fostering amusement, and sparking conversation.

Polish Text Moderation API ML-powered content moderation solution with 3 specialized endpoints: sentiment analysis for product reviews, multi-class message moderation and hate speech recognition. Native Polish language support with JSON responses including confidence scores and probability distributions. Fast (<500ms), privacy-focused (no data storage), and RESTful with full OpenAPI 3.1 documentation. Perfect for e-commerce, forums, and social platforms targeting Polish audiences.

This API provides access to a collection of unusual and outdated laws across U.S. states. Users can fetch all states and retrieve the list of "stupid laws" for a specific state.

Affordable domain authority scores, backlink profiles, referring domains, and multi-domain comparisons. Powered by Moz, Open PageRank, and Common Crawl without the $1,200/year price tag.

Universal JSON Fix repairs broken or malformed JSON, especially from LLMs like ChatGPT, Claude, Deepseek, Gemini, or Llama. This API ensures reliable parsing by fixing mixed quotes, missing commas, and formatting issues, making it ideal for AI applications.

Parse, validate, describe, and generate cron expressions. Converts cron syntax to human-readable descriptions and calculates next run times.

Powerful and reliable API service that provides real-time domain registration data for businesses, cybersecurity professionals, and developers. Our API delivers accurate and up-to-date WHOIS information in a simple, easy-to-parse JSON format, allowing you to monitor domain ownership, prevent fraud, and enhance your applications with valuable insights.

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 Inappropriate Language API swiftly analyzes text to spot unsuitable language, promoting a positive community environment.

The Love Connection API offers engaging compatibility insights, enhancing user interaction in apps, websites, and social media platforms.

Text Rewriter API allows you to automatically rephrase text, preserving its meaning while changing its wording. The API supports multiple languages and can be integrated with any application for content generation, SEO and plagiarism prevention

Analyzes a web domain and returns SEO structure, content quality, use of headers, lists, schema, tables, and AI blocks.

Accurately decode VISA BIN numbers to get credit card type, issuer bank, country code, and support contact info.

The Language Policing API analyzes text, identifying and mitigating inappropriate content to ensure a safer online environment for users and compliance with guidelines.

Unlock affordable backlink intelligence to boost your SEO strategy effectively with Backlinq API.

Instantly check domain authority to enhance your website's credibility and SEO rankings with Backlinq API.

Examines any text and provides a coherence score, assessing the logic, consistency, and clarity of the content.

Quickly check backlink profiles to optimize your site’s SEO health using the user-friendly Backlinq API.

Extract essential programming languages information quickly for enhanced development insights.

Streamline your development with reliable programming languages data retrieval through our API.

Quickly retrieve detailed information about programming languages to empower your projects.

Access comprehensive data on various programming languages effortlessly with our API.

Simplify vehicle diagnostics by decoding and extracting DTC codes with our powerful, user-friendly API!