#accessibility

ADA wheelchair-ramp maths as an API, computed locally and deterministically — the run, landing and slope numbers a builder or accessibility planner sizes a ramp by. The rule the ADA fixes is 1 inch of rise per 12 of run, a maximum 8.33 % slope, so the ramp endpoint turns a rise into the ramp: run = rise × 12 (or × 16 / × 20 for a gentler grade if you have the room), plus the level landings the code requires — a 5-foot landing top and bottom and another between runs whenever the rise exceeds 30 inches — and the total length end to end, so a 24-inch rise needs a 24-foot run and 34 feet overall, while a 36-inch rise breaks into two runs with an intermediate landing for 51 feet. The fit endpoint answers the real-world question: does a ramp for this rise fit the run you have? It returns the minimum run an ADA 1:12 ramp needs, whether your space is enough, and the slope you would actually get if you forced it in — flagging when that exceeds 8.33 % and you need a switchback or a lower rise. Everything is computed locally and deterministically, so it is instant and private. Ideal for construction, accessibility, home-modification and contractor app developers, ramp-estimator and code-check tools, and building software. Pure local computation — no key, no third-party service, instant. Confirm against current ADA and local code. Live, nothing stored. 2 compute endpoints.

api.oanor.com/adaramp-api

Matemáticas de pendiente y grado como una API, calculadas local y determinísticamente. El endpoint convert convierte una pendiente entre todas las formas comunes: porcentaje de grado, ángulo en grados, una relación como 1:12, por mil y desnivel por recorrido — donde la pendiente m = desnivel ÷ recorrido = tan(ángulo). El endpoint distance relaciona el recorrido (horizontal), el desnivel (vertical) y la distancia de la pendiente (la hipotenusa) de un triángulo rectángulo: dados dos, opcionalmente con el grado o ángulo, devuelve el resto. El endpoint ramp dimensiona una rampa para silla de ruedas o ADA — a partir de un desnivel y una pendiente máxima (por defecto 1:12, el máximo ADA de 8.33%) devuelve el recorrido requerido y la longitud total de la rampa, y si proporcionas un recorrido real, verifica si la rampa está dentro del límite. Todo se calcula local y determinísticamente, por lo que es instantáneo y privado. Ideal para herramientas de ingeniería civil y topografía, aplicaciones de carreteras, senderos y accesibilidad, diseño de construcción y rampas, y software de cartografía. Cálculo local puro — sin clave, sin servicio de terceros, instantáneo. En vivo, nada almacenado. 3 endpoints. Esto es geometría de pendiente y grado; para inclinación de techo específicamente usa una API de techos.

api.oanor.com/slope-api

Convert text to Unicode braille and back. Uses uncontracted (Grade 1) English braille: the 26 letters, digits with the number sign, capitals with the capital sign, and common punctuation, all output as Unicode Braille Patterns (U+2800–U+28FF) so they render anywhere. The to-braille endpoint turns ordinary text into braille; the from-braille endpoint decodes braille back to text. Unknown characters pass through unchanged. Perfect for accessibility tooling and education, labels and signage mockups, braille-display previews and learning resources. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. Grade 1 only (no contractions). Distinct from cipher/alphabet encoders and from general text transforms.

api.oanor.com/braille-api

See your colours the way colour-blind users do. Pass a hex colour (or a whole palette) and get back how it appears under each major colour-vision deficiency — protanopia (red-blind), deuteranopia (green-blind), tritanopia (blue-blind) and achromatopsia (total colour blindness) — as simulated hex and RGB values. Roughly 1 in 12 men and 1 in 200 women have some colour-vision deficiency, so this is ideal for accessibility testing of UI themes, charts, maps, status colours and branding: simulate your palette, spot colours that become indistinguishable, and fix them before you ship. Pure local matrix transforms — no key, no third-party service, instant. Live. 4 endpoints. Distinct from colour conversion and contrast tools.

api.oanor.com/colorblind-api

Un kit completo de colores: convierte entre hex, RGB, HSL, HSV y CMYK con luminancia relativa, genera paletas armoniosas (complementarias, triádicas, tetrádicas, análogas, monocromáticas, sombras) y calcula relaciones de contraste WCAG con aprobación/reprobación AA/AAA para accesibilidad. Del lado del servidor, instantáneo, sin servicios de terceros.

api.oanor.com/color-api