Convert between 138 units across 19 categories with auto-detection, compound measurement parsing, batch conversion, locale formatting, and ingredient cooking conversions. Fast, stateless, and fully documented.

Keyless Costa Rica Hacienda v4.4 comprobante validator: official XSD for 8 document types, the 50-digit clave numerica, CABYS code lists, totals/IVA math, XAdES-EPES signature check. Rule-coded JSON r

Keyless Bolivia SFV/SIAT factura electronica validator: official SIN XSD, code ranges, totals math, CUF/CUFD reconstruction with Modulo 11 and Base16, XML-DSig signature check. Rule-coded JSON report.

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.

EPC label, EPBD MEPS compliance, and stranding-risk screening across 8 EU markets — primary energy, solar obligation, renovation cost, and cap-rate discount modelling for lenders and asset managers.

Classify content into IAB categories using tiered and unified prediction endpoints.

Validate tax identification numbers for 7 Latin American countries: CUIT (Argentina), RUT (Chile), RUC (Peru, Ecuador, Paraguay), NIT (Colombia), and CI (Uruguay). Check digit verification, formatting, and entity type detection.

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

Facilitate seamless compliance checks with our EU Building Energy Compliance API for Fund Compliance Teams designed specifically for Fund Compliance Teams.

Gain valuable insights into building energy compliance with our Developer Insight Developer Insight EU Building Energy Compliance API for informed decisions.

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

Quickly assess your debt-to-income ratio with our accurate tool, ensuring your mortgage approval success.

Calculate global stamp duties with ease using our comprehensive Stamp Duty Calculator for any mortgage or loan.

Explore options to combine multiple loans effortlessly with our Loan Consolidation API for better financial management.

Calculate your balloon payments easily, helping you manage large final payments effectively with our API.

Discover the benefits of biweekly payments to accelerate your loan repayment with our practical calculation API.

Evaluate your home buying possibilities with our Affordability Calculator, making budgeting simpler and smarter.

Simplify interest calculations with the APR Calculator, helping you choose the best loan options available.

Determine your refinancing break-even point accurately, ensuring you make informed decisions with our intuitive tool.

Generate clear amortization schedules for your mortgages, allowing for better planning of your repayment strategy.

Understand interest-only mortgage structures with our tool, offering clarity on potential costs and benefits.