I’m looking for a plan that offers more than 300k requests per month. Is that a possibility? A custom plan maybe?
If you need more than 300,000 conversions per month, the best way is to get a second OCR subscription, and then use both API keys in your API calls. This will give you 600,000 conversions total (or 900,000 for 3 subscriptions/API keys, etc).
→ For more details please see this Increase OCR API conversions forum post.