curl --request POST \
  --url https://api.example.com/api/repositories/check \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "repo_url": "<string>",
  "repo_access_token": "<string>"
}
'

{
  "accessible": true,
  "requires_auth": true
}