You do not have to create a separate stream for each address. Instead, you can attach multiple addresses to the same stream. The best practice is to create as few streams as possible and instead attach addresses to existing streams whenever it makes sense. You can attach any number of addresses to a stream.
If you really need more streams update to a paid plan or contact support (firstname.lastname@example.org) if you are already a paying client.
If you want to add multiple addresses to another stream you can always attach them to an existing stream.
Attaching multiple addresses to a stream
// Add addresses
], // Can also be a single string
Delete an address from a stream
// Delete an address
Get all addresses from a stream
// Get all addresses