▲ ksty.ch
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7 APIs live today

Hundreds of APIs.
One key. One bill.

Ksty.ch puts every API you need behind a single account and one scoped key — metered by simple credits, documented in one place, and billed once.

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500 free credits on signup · no card required

curl https://ksty.ch/api/v1/echo \
  -H "X-Api-Key: ksty_live_9f2a…" \
  -d '{"message":"hello"}'
X-Credits-Charged: 1
X-Credits-Remaining: 499
7
APIs in the catalog
1,000
Credits per $1
500
Free credits at signup
1 key
For the whole catalog
THE CATALOG

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✨ 2 APIs
AI
AI Text Summarization & Q&A · OCR — Advanced & Handwriting
🔌 1 API
Content
Text Analysis
🔌 1 API
Documents
HTML to PDF
🔌 1 API
Parsing
HTML Parser
⚙️ 1 API
Utility
Echo
✅ 1 API
Validation
Email Validator

From zero to first call in minutes

No SDK sprawl, no per-vendor contracts. One integration pattern for the whole catalog.

01
Grab a key
Sign up with just your email — a one-time code gets you a scoped ksty_live_ key, with 500 free credits to start.
02
Call any API
Send your key in the X-Api-Key header to /api/v1/{slug}. One key covers the whole catalog.
03
Pay as you go
Each call costs credits — $1 = 1,000. Buy packs or set auto top-up. No subscriptions.
CREDITS, NOT SUBSCRIPTIONS

Pay for exactly what you call

$1 buys 1,000 credits. Each call costs a few credits — buy packs or set auto top-up. Free credits are always spent first.

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500
Free credits at signup
$1
= 1,000 credits
1+
Credit per call
Docs, code samples & a live try-it console
Every endpoint documented, with curl / JS / Python / PHP samples and OpenAPI export.
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