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API · /ocr-api

OCR API

healthy 4,652 Subscribers

Extract text from images with optical character recognition in eight languages (English, German, French, Spanish, Italian, Portuguese, Dutch and Turkish). Get the full recognised text with an average confidence score and word and line counts, or word-level results where every word carries its own confidence and bounding box for layout-aware processing. Supply an image by public URL, base64 or a raw binary request body; large images are downscaled automatically before recognition to keep responses fast, and a warm engine keeps latency low after start-up. Pure server-side computation (Tesseract, no third-party upstream, no per-call cloud cost). Ideal for digitising documents and receipts, reading text from photos and screenshots, accessibility, and data-entry automation.

#ocr #image-to-text #text-recognition #document #tesseract #extraction #dev-tools
api.oanor.com/ocr-api
Get an API key Try in playground → Contact provider

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

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

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

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
108 ms
Server probes · 24h
Subscribers
4,652
active
Total calls
9
last 7 days
status Full status page → · 9 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 2,000 calls / month
  • 1 requests / second
  • Hard cap (429 above quota, no overage)
  • 2,000 calls/month, 1 req/s
  • Text recognition in 8 languages with word boxes
  • No credit card
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Basic

€12.50 /month

  • 40,000 calls / month
  • 3 requests / second
  • Hard cap (429 above quota, no overage)
  • 40,000 requests/month, 3 req/s
  • Full text + word-level confidence & bounding boxes
  • Commercial use included
  • Email support
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Pro

€34.00 /month

  • 250,000 calls / month
  • 8 requests / second
  • Hard cap (429 above quota, no overage)
  • 250,000 requests/month, 8 req/s
  • High throughput for document & receipt pipelines
  • Priority email support
  • Commercial use allowed
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Mega

€89.00 /month

  • 1,200,000 calls / month
  • 20 requests / second
  • Hard cap (429 above quota, no overage)
  • 1,200,000 requests/month, 20 req/s
  • Highest throughput for production digitisation at scale
  • Priority support
  • Commercial use allowed
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Related APIs

Other APIs with overlapping tags.

PDF to Text API

Extract text from PDF documents: the complete document text, the text of every page separately, the document metadata (page count, title, author, subject, keywords, creator, producer, creation and modification dates, PDF version, encryption and outline flags), and a full in-document search that returns the matching pages with hit counts and context snippets. Supply a PDF by public URL, base64 or a raw binary request body; only public http/https URLs are accepted and private or internal hosts are blocked. Pure server-side computation (pdf.js, no third-party upstream, no per-page cloud cost). Ideal for document indexing and search, data extraction and ETL, invoice and contract processing, archiving and content pipelines.

api.oanor.com/pdftext-api

PDF API

Generate PDF documents from text on the fly — with an optional bold title, page size (A4, Letter or Legal) and font size. Returns a base64 PDF or a raw downloadable file. Great for invoices, reports, receipts and tickets.

api.oanor.com/pdf-api

Face Detection API

Detect human faces in an image and analyse each one with on-device machine learning: get the bounding box and a detection confidence, an estimated age, the predicted gender with its probability, and the dominant facial expression together with the full per-expression breakdown (neutral, happy, sad, angry, fearful, disgusted and surprised). A lightweight count endpoint returns just the number of faces and their boxes for fast gating. Supply an image by public URL, base64 or a raw binary request body; only public http/https URLs are accepted and private or internal hosts are blocked, and large images are downscaled automatically. Runs locally on TensorFlow (face-api) — no third-party upstream and no per-image cloud cost — with warm models that keep inference fast. Ideal for photo and avatar apps, audience analytics, smart cameras, auto-cropping and accessibility.

api.oanor.com/facedetect-api

NSFW Detection API

Moderate images automatically with on-device machine learning. Classify any image across five categories — neutral, drawing, sexy, porn and hentai — and receive per-class probabilities, the top class, a combined NSFW score and a clear verdict (safe, questionable or nsfw). A simpler check endpoint returns a single safe/unsafe decision against a threshold you choose, ideal for upload gates and user-generated-content pipelines. Supply an image by public URL, base64 or a raw binary request body; only public http/https URLs are accepted and private or internal hosts are blocked, and large images are downscaled automatically. Runs locally on TensorFlow (NSFWJS / MobileNetV2) — no third-party upstream and no per-image cloud cost — with a warm model that keeps inference fast. Ideal for community platforms, marketplaces, dating and chat apps, and any service that accepts user images.

api.oanor.com/nsfw-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for OCR API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call OCR API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for OCR 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 OCR API cost?
OCR API has a free tier with 100 calls / month. Paid plans start at €12.50 / 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 OCR API GDPR-compliant?
All requests to OCR 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/ocr-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/ocr-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/ocr-api/SOME_PATH");
curl_setopt($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/ocr-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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