Musk hinted last month that X could start charging all users, and the company (formerly known as Twitter) announced a test.

In a post on Tuesday, X announced that it is testing a new program called “Not a Bot” in which new users in New Zealand and the Philippines must subscribe for $1 annually to post and interact.

If users subscribe to X’s $3.99 per month premium service, the fee will be waived for new web accounts. Users who opt out of premium and the annual subscription will only be able to read posts, watch videos, and follow accounts – but not interact. As part of the test, existing users will not be affected.

The company said in the post that the program is meant to “bolster our already successful efforts to reduce spam, manipulation of our platform and bot activity, while maintaining platform accessibility while balancing a small fee amount,” adding that the fee is not intended to generate profit.

Musk has encouraged users to sign up for X Premium to reduce spam and scam activity on the platform, explaining that credit card payments verify a user’s identity and create a higher barrier to entry for inauthentic accounts. Users who subscribe to X’s new ad revenue share program receive a blue checkmark, have their posts boosted by the platform’s algorithm, and are eligible for payments.

Last month, Musk suggested he might start charging all users in a conversation with Israeli Prime Minister Benjamin Netanyahu. The company is moving to a small monthly fee for using the X system because it is “the only way I can think of to combat vast armies of bots.”

Many bad actors, however, are more than willing to pay up for inauthentic accounts on the platform, according to experts. Alternatively, a person could pay to verify an account and allow a computer to run it, thereby creating an automated (or “bot”) verified account.