Automation is allowed via the API — at a price
X allows automated posting and engagement through its official API, but write and DM access requires at least the paid Basic tier (roughly $100–200/month); the free tier is read-limited. Tools that respect this operate within X’s terms; that is why X is a Pro-plan, bring-your-own-credentials connection in FounderReply — X binds its automation rules to the owner of the developer app rather than to the person using it. Building on access that sits outside those terms is what creates risk.
What X suspends accounts for
X’s automation rules prohibit bulk, aggressive, or spammy behaviour: posting duplicative content, aggressive following/unfollowing, mass replies or mentions, and any coordinated multi-account activity. The principle mirrors Reddit’s — automation that amplifies a real account is tolerated; automation that fakes scale is not.
How to automate replies safely
Use your own account via the official API, keep replies genuinely contextual and human-approved, and avoid blasting the same message at many users. Quality over volume keeps you clear of the spam thresholds. A human approving each draft is the simplest guarantee that what goes out reads like you, not a bot.