oanor
Sign up free
Marketplace Pricing Features Sign in

API · /viewdistance-api

Viewing Distance API

healthy 3,722 Subscribers

TV and projector viewing-distance maths as an API, computed locally and deterministically. The distance endpoint takes a screen diagonal (inches or centimetres) and aspect ratio and returns the screen width and height and the recommended seating distance for each standard — SMPTE's 30° minimum viewing angle (the farthest comfortable seat), THX's 36° recommendation and THX's 40° maximum (the closest) — in inches, feet, centimetres and metres, plus an overall recommended range. Pass a resolution (720p, 1080p, 1440p, 4K or 8K) and it also gives the pixel-acuity distance, the point beyond which a 20/20 viewer can no longer resolve individual pixels, so moving closer stops adding detail. The screensize endpoint reverses it: from a seating distance it recommends the screen diagonal for each standard. The fov endpoint gives the horizontal field of view for a screen at a distance, with a verdict on whether it falls in the recommended range. The geometry is exact: width = diagonal × aspect-width / hypot(aspect), and distance = (width/2) / tan(angle/2). Everything is computed locally and deterministically, so it is instant and private. Ideal for home-theatre and AV apps, TV and monitor retail tools, room and seating planners, and AV-installer calculators. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is viewing-distance geometry; for pixel density (PPI) from a resolution use a PPI API.

#viewing-distance #home-theater #tv #smpte #thx #developer-tools
api.oanor.com/viewdistance-api
Get an API key Try in playground → Contact provider

Machine-readable spec so AI agents can integrate this API.

/api/viewdistance-api/openapi.json
/api/viewdistance-api/llms.txt

Discovery: GET /api/index.json lists every API.

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
81 ms
Server probes · 24h
Subscribers
3,722
active
Total calls
44
last 7 days
status Full status page → · 12 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 13,235 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 13,235 calls/month
  • 2 req/sec
  • Distance + screen size + FOV
  • No credit card
Sign in to subscribe

Starter

€14.75 /month

  • 22,850 calls / month
  • 8 requests / second
  • Hard cap (429 above quota, no overage)
  • 22.85k calls/month
  • 8 req/sec
  • SMPTE & THX, pixel acuity
  • Email support
Sign in to subscribe

Pro

€34.65 /month

  • 278,500 calls / month
  • 20 requests / second
  • Hard cap (429 above quota, no overage)
  • 278.5k calls/month
  • 20 req/sec
  • Home-theatre / AV pipelines
  • Priority support
Sign in to subscribe

Mega

€72.65 /month

  • 1,435,000 calls / month
  • 50 requests / second
  • Hard cap (429 above quota, no overage)
  • 1.435M calls/month
  • 50 req/sec
  • Platform scale
  • Dedicated SLA
Sign in to subscribe

Built by

P
PremiumApi

Related APIs

Other APIs with overlapping tags.

Star Trek API

The Star Trek universe as an API, powered by the open STAPI database. Search characters by name (e.g. Picard) or pull full detail by uid — species, titles, occupations, the actors who played them and their Starfleet organizations. Look up the television series (e.g. Voyager → 7 seasons, episode count, production years and original broadcaster), and search the spacecraft of the franchise (e.g. Enterprise) for their registry, class, status and operator. Across The Original Series, The Next Generation, Deep Space Nine, Voyager and beyond. Ideal for fan sites, trivia and quiz games, wikis, Discord bots and any Star Trek app.

api.oanor.com/startrek-api

Rick and Morty API

The Rick and Morty universe as an API — every character, location and episode from the show. Look up a character by id or search and filter the roster by name, status (alive, dead, unknown), species, type and gender (e.g. all living Mortys), browse locations by name, type and dimension, or pull episodes by name or episode code (e.g. S03E07 → The Ricklantis Mixup). Each character carries status, species, origin and last-known location, episode appearances and a portrait; locations carry their type and dimension; episodes carry the air date and cast size. Backed by the open rickandmortyapi.com dataset. Ideal for fan sites, trivia and quiz games, Discord bots, learning projects and any Rick and Morty app.

api.oanor.com/rickandmorty-api

Movies & TV API

Search TV shows and movies, then fetch full details (genres, rating, network, summary, IMDb id, artwork), the complete episode guide and the cast for any title. Powered by TVMaze.

api.oanor.com/movies-api

IMDB API

18 endpoints for live IMDB data — title + name search, detail, cast, known-for, ID/URL helpers.

api.oanor.com/imdb-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Viewing Distance API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Viewing Distance API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Viewing Distance API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does Viewing Distance API cost?
Viewing Distance API has a free tier with 100 calls / month. Paid plans start at €14.75 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is Viewing Distance API GDPR-compliant?
All requests to Viewing Distance API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.

Pick an endpoint from the list on the left to see its details and try it.

Code snippets

Sign up to get an API key, then call any path under your slug.

curl https://api.oanor.com/viewdistance-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/viewdistance-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/viewdistance-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
    "https://api.oanor.com/viewdistance-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

Ratings

Sign in to rate.

No reviews yet.

Discussion

Ask questions, share usage tips, get answers from the provider and other developers. Public — anyone can read.

Sign in to start a thread or reply.

Sign in

New thread

/ 4000

📌 Pinned 🔒 Locked

·

· ·

/ 4000

🔒 This thread is locked — no new replies.

  • No threads yet — start the discussion.

Support

Private 1:1 support with the provider — billing questions, integration issues, account problems. Only you and the provider team can see these threads.

Sign in to open a support ticket.

Sign in

Open new ticket

Describe what you need help with. The provider team gets an email and replies on the ticket page.

  • No tickets yet for this API.

Subscription active — calls can start immediately.

Send your first request —

Subscription active — copy a snippet and fire off your first call.