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.

The Expression Evaluation API is a versatile natural language calculator that can evaluate mathematical expressions and return the results in plain text. Simply input the expression to be evaluated, and the API will scan and compute the calculation, making it an easy-to-use tool for developers who want to incorporate a calculator function into their applications.

Accepts a structured description of a working relationship and returns a jurisdiction-specific misclassification risk score (0-100), risk level, factor-by-factor analysis, and plain-English reasoning across 20 jurisdictions. Also includes remediation guidance, safe-harbor checklists, financial exposure estimation, cross-jurisdiction comparison, and portfolio-level bulk scoring. No database, no runtime scraping — fast and deterministic responses.

The Futoshiki generator API is that allows users to programmatically generate Futoshiki puzzles.

Score the readability of any English text. Returns Flesch-Kincaid, Gunning Fog, SMOG, ARI scores, sentence-level breakdown, improvement suggestions, and target grade pass/fail in one call.

A globally usable mortgage and loan calculator supporting multiple currencies. Covers monthly repayments, full amortisation schedules, affordability reverse-calculation, early repayment savings, side-by-side comparison, total cost of ownership, APR, debt-to-income ratio, stamp duty estimates, refinance break-even, balloon payments, interest-only periods, loan consolidation, and biweekly payment options. Pure maths — no external data sources. Pass any currency code (USD, GBP, EUR, ZAR, AUD, etc.) for localised display.

High-speed analytical C++ engine to solve the subset sum problem with exact cardinality constraint (k-Subset Sum). Instantly processes massive instances with giant integers of up to 1000 bits in a constant time of 3 seconds with absolute zero error. Perfect for logistics payload optimization, indexed portfolio balancing, and manufacturing stock-cutting waste reduction.

This API converts your text instructions into Excel and Google Sheets formulas and explains your entered formulas on the other hand. Thus, it helps you work effectively without spending too much time just thinking about a formula.

The Excel Formula Wizard API transforms text instructions into accurate Excel and Google Sheets formulas. It also provides explanations for generated formulas, helping you understand and utilize them effectively. Streamline your spreadsheet tasks and save time with this intuitive tool designed for formula creation and clarification.

Your ultimate solution for reducing memory usage, cutting storage costs, and enhancing application performance—all without the need to rewrite your existing business logic. With a single API call, you receive a comprehensive savings report detailing the optimization in bytes, KB, MB, or GB.

Score one working relationship across up to 5 jurisdictions at once, or compare jurisdictions' legal tests and penalty exposure side by side, to find the safest place to engage a role.

Score IR35 and off-payroll working risk for UK engagements, alongside 19 other jurisdictions' classification tests, with factor-by-factor reasoning.

Bulk-score up to 100 existing contractor relationships in one call, with per-worker risk levels and aggregate statistics to flag your highest-risk workers first.

Score misclassification risk (0–100) across 20 jurisdictions from a structured description of a working relationship, with the legal test applied and factor-by-factor reasoning.

Score misclassification risk before placing a worker in any of 20 jurisdictions, with financial exposure estimates and remediation guidance for EOR and payroll teams.

Streamline complex information using the Technical Writing Technical Writing Readability API for clear communication.

Analyze and improve academic texts with the Academic Readability Analysis API for robust insights.

Boost student understanding with the EdTech Readability Improvement API designed for educational content.

Make your content accessible to all users with the Accessibility Compliance Accessibility Compliance Readability API.

Increase user engagement by enhancing readability with the User Engagement User Engagement Readability API.

Enhance your content's clarity with the Content Marketing Content Marketing Readability API for better engagement.

Optimize your SEO strategy by improving readability with the SEO Optimization SEO Optimization Readability API.

Ensure your legal documents are crystal clear with the Legal Compliance Legal Compliance Readability API.

The Decision Optimizer API optimizes complex decisions by mapping elements to requirements with customized constraints, maximizing results and minimizing costs, ideal for resource, budget and allocation efficiency.

Optimize decisions by mapping elements to constraints, balancing costs and results efficiently for budget and resource management.