Quickstart

Make your first conversion request in under a minute.

1. 1

   Create an account

   Sign up and create an API key in your dashboard. Keys start with ckr_live_.

2. 2

   Export your key

   bashCopy

   export CKR_API_KEY="ckr_live_..."

3. 3

   Make a request

   cURLJavaScriptPythonPHP

   bashCopy

   curl -X POST https://api.convertkr.com/v1/pdf/merge \
     -H "Authorization: Bearer $CKR_API_KEY" \
     -F "files[]=@a.pdf" \
     -F "files[]=@b.pdf" \
     -o merged.pdf

4. 4

   Handle the response

   Binary endpoints return the file directly with the right Content-Type. JSON endpoints return { "data": ... }. Errors return { "error": "..." }.