Keyboard Layout Correction API
Fix text typed in the wrong keyboard layout.
KeySense AI detects accidental keyboard layout mistakes — Cyrillic, Arabic, Greek, Hebrew and 66 more — and converts the input into the intended language instantly. No AI required for 94% of corrections.
Built for accuracy
Eight layers of detection — from raw glyph mapping to AI verification — with word and phrase-level semantic reconstruction.
Sub-5ms detection
Rule-based pipeline runs entirely on Cloudflare Workers — no external calls, no cold starts. 94% of corrections never touch AI.
70+ keyboard layouts
Latin, Cyrillic, Arabic, Hebrew, Greek, CJK, and more. Dvorak, Colemak, JIS, ABNT — every major layout is supported.
Optional AI verification
Low-confidence cases can optionally use AI to improve correction quality. AI is opt-in per-request — most corrections never need it.
Privacy-first by design
Text data is never stored. API processing is stateless. Enterprise customers can disable external AI entirely for full on-premise operation.
Multi-script accuracy
Handles mixed-script inputs and detects the physical keyboard profile (ANSI, ISO, JIS, compact) to maximise correction accuracy.
Official npm SDK
Zero-dependency TypeScript SDK with retry/backoff, AbortSignal, and full type coverage. One install away.
One npm install away
import { KeySenseClient } from '@keysense/sdk';
const ks = new KeySenseClient({
apiKey: process.env.KEYSENSE_API_KEY,
});
const result = await ks.detect('руддщ цщкди');
// → { decoded: 'hello world', layout: 'ru-RU', confidence: 1.0 }
const result = await ks.detect('ηεββο ςορβδ', { useAI: true });
// → { decoded: 'hello world', layout: 'el-GR', confidence: 0.95 }npm install @keysense/sdkBuilt for real workflows
Whether you're cleaning CRM data, fixing search queries, or building a multilingual product — KeySense AI slots in as a single API call.
Search boxes
Fix mis-typed queries before they hit your search engine. Users who accidentally type in the wrong language still get the right results.
Customer support
Auto-correct incoming ticket text and chat messages. Agents spend less time deciphering garbled input.
Multilingual apps
Your product serves users across many countries — KeySense AI catches layout errors before they surface as bugs or bad UX.
CRM / form input
Names, addresses, and notes typed with the wrong layout are silently corrected before they pollute your database.
Transliteration cleanup
Convert phonetically-typed Cyrillic, Arabic or Greek back to the intended native script, or vice versa.
Enterprise on-premise
Deploy the worker in your own Cloudflare account or private cloud. No data ever leaves your infrastructure.
Your data never leaves unless you say so
94% of corrections are handled entirely by our rule-based engine — no AI, no external calls, no data sharing. The Claude AI fallback is opt-in and can be disabled per-request or globally. Enterprise customers can deploy on-premise and disable external AI processing entirely.
Read the AI fallback docs →Simple pricing
Start free. Scale when you need to.
For individuals and small projects.
- 500 corrections / month
- 70+ layouts
- Rule-based detection only
- @keysense/sdk access
- Community support
For teams and production apps.
- 50,000 corrections / month
- AI verification included
- Priority API access
- Usage dashboard
- Email support
For high-volume or on-premise needs.
- Unlimited corrections
- Dedicated worker instance
- On-premise deployment
- SLA guarantee
- Dedicated support
| Feature | Free | Pro | Enterprise |
|---|---|---|---|
| Corrections / month | 500 | 50,000 | Unlimited |
| API access | ✓ | ✓ | ✓ |
| TypeScript SDK | ✓ | ✓ | ✓ |
| 70+ keyboard layouts | ✓ | ✓ | ✓ |
| Rule-based engine | ✓ | ✓ | ✓ |
| AI verificationopt-in | ✗ | ✓ | ✓ |
| Sensitive modedisables external AI per-request | ✗ | ✓ | ✓ |
| Disable external AI globally | ✗ | ✗ | ✓ |
| On-premise deployment | ✗ | ✗ | ✓ |
| Usage dashboard | ✗ | ✓ | ✓ |
| Rate limit | 60/min | 600/min | Custom |
| Log retention | 30 days | 30 days | Custom |
| Support | Community | Dedicated SLA | |
| DPA / GDPR docs | ✗ | ✗ | ✓ |
Need a custom volume deal or private deployment? Contact us for Enterprise