Authentication

Send your license key with every paid request, via header or query parameter:

curl "https://summarize.sklayer.com/api/summarize?text=Hello+world" \
  -H "X-API-Key: YOUR_LICENSE_KEY"

Example response

{
  "ok": true,
  "summary": "...",
  "calls_used": 1,
  "calls_limit": 1000
}

Free demo

Every product exposes a free GET /demo endpoint (no key needed) so you can try it before subscribing.

Rate limits & errors

1,000 calls per key per month. Without a valid key the API returns HTTP 402; once the limit is reached it returns HTTP 429.

Browse all product endpoints →