post
https://{base_url}/v2/esims
Create an invoice to purchase a new eSIM or top up an existing one.
New Purchase vs Top-Up: Include esim_id to top up an existing eSIM. Omit it for a new purchase.
Rate Limit: 60 requests per 10 minutes
Key Parameters: - products[].product_id - eSIM product ID (e.g., bitrefill-esim-europe) - products[].value - Data bundle (e.g., 3GB, 30 Days) - products[].esim_id - Optional ICCID for top-ups