Last updated: August 13, 2026

Free Discord auto moderation bot to stop spam, raids and scam links

Q: Is Nova Bot's auto moderation bot free?

Yes. Every auto moderation feature is free on every server, including spam blocking, invite link and scam link blocking, raid protection and warning escalation. There is no time limit or member cap. Premium adds other features, but auto moderation itself costs nothing to use.

A Discord auto moderation bot is an automated application that watches your server's messages and joins and removes spam, scam links, invite links and raids before a moderator sees them. Instead of staff deleting bad messages and kicking raid accounts by hand, the bot enforces your rules around the clock, the moment a message is sent or a member joins.

Nova Bot includes a free Discord auto moderation bot with a full set of automated protections: a master switch, invite link and scam link blocking, anti-spam, a mention cap, a banned word filter, raid protection with an optional auto-kick, automatic warning escalation, and a verification gate. You turn each one on from the web dashboard or with slash commands, and every rule is configured in minutes with no code.

Quick answer: Nova Bot is a free Discord auto moderation bot that automatically deletes spam, invite links, scam links and mass mentions, filters banned words, and trips raid protection when too many accounts join at once. Run /config automod to turn on the message filters and /config antiraid for join protection, or flip the switches in the web dashboard. Set up takes a few minutes, and moderators with the Manage Messages permission are never actioned.

How do you stop spam in a Discord server?

The AntiSpamEnabled setting detects when a user sends messages too quickly and deletes the offending message with a short warning. The MaxMentionsPerMessage setting caps how many users and roles a single message can mention, which stops mention spam and raid-style pings. Both run under the AutoModEnabled master switch, and members with the Manage Messages permission are exempt so your mods are never caught by the filter.

How do you block invite links and scam links?

The BlockInviteLinks setting detects and deletes Discord invite links, while BlockScamLinks removes lookalike domains and phishing links such as free-Nitro scams. You can also set a comma-separated list of BannedWords to filter any word you choose. When a message trips a filter, Nova Bot deletes it and posts a short warning that mentions the member and the rule they broke.

How do you set up raid protection?

The AntiRaidEnabled setting watches join rates, and when more members than your RaidJoinThreshold join within the window, Nova Bot alerts your mod-log channel. With RaidAutoKick on, members who join during a detected raid are kicked automatically for 60 seconds. You can also turn on VerificationEnabled so every new member must click a Verify button before they can see the server, which stops most raids before they start.

Can you auto-warn or timeout members?

Yes. Mods issue warnings with /warn, and the WarnThreshold setting decides how many warnings trigger an automatic action. The WarnAction setting picks what happens at that threshold: a timeout (length set by WarnTimeoutMinutes), a kick, or a ban. Set WarnThreshold to 0 or the action to None to disable escalation.

Need help? Join the Nova Bot support server: https://discord.gg/rWey9pFa53

Go further with Nova Bot Premium

Nova Bot Premium is $5/month. After you add the bot, run /premium in Discord to see premium features and subscribe.

Add Nova Bot's auto moderation bot to your Discord server free.

Block spam, raids, invite links and scam links automatically, with a web dashboard to tune every rule. Set up in under five minutes. Free to start, premium when you are ready to grow.

Add to Discord

Free forever. Premium starts at $5/month per server.

Frequently asked questions

Is Nova Bot's auto moderation bot free?

Yes. Every auto moderation feature on this page is free on every server, including spam blocking, invite link and scam link blocking, raid protection and warning escalation. There is no time limit or member cap. Premium adds other features, but auto moderation itself costs nothing to use.

Does auto moderation affect my moderators?

No. Messages from members with the Manage Messages permission are exempt from the filters, so your mods and admins are never deleted or warned by auto moderation. The bot only actions members who do not have moderation permissions.

What happens when a message breaks a rule?

Nova Bot deletes the message immediately and posts a short warning in the channel that mentions the member and the rule they broke. The warning disappears on its own after a few seconds so the channel stays clean.

Does raid protection kick innocent members?

Raid protection only trips when the number of joins in a short window passes your RaidJoinThreshold, which you control. If RaidAutoKick is off, Nova Bot only alerts your mod log and does not kick anyone. With it on, only accounts that join during the detected raid are kicked, and protection resets after 60 seconds.

Bottom line: Nova Bot's auto moderation gives your server automated protection against spam, scam links, invite links and raids, plus automatic warning escalation, in one free package. Add Nova Bot to your Discord server to turn it on in minutes, or see how it fits the wider bot landscape in our comparison of the best Discord bots.

Guide by The Nova Bot Team. Updated August 13, 2026.