How to Stop Spam Bots on Telegram
Spam bots on Telegram are automated accounts that join groups to post scams, phishing links, crypto promotions, and other unwanted messages. The fastest way to stop them is to add an anti-spam bot that screens every new member with a CAPTCHA, scores accounts for risk with AI, and deletes spam content automatically. Telegram Bot App does all three, and the two anti-spam layers that catch most attacks are on the free tier.
This guide explains what Telegram spam bots are, how a coordinated bot attack works, and the exact steps to get rid of spam bots in your group. Every feature described here is one you turn on from the dashboard. No commands to memorize, no code.
What a Telegram spam bot is
A Telegram spam bot is a script-controlled account, not a person. Operators run them in bulk: one operator can drive hundreds or thousands of accounts that join groups, wait, then post identical or near-identical messages on a schedule. The common payloads are cryptocurrency scams, phishing links, fake giveaways, "investment" pitches with guaranteed returns, and links to other groups.
Older spam bots were easy to spot because they posted the same keyword over and over. Modern ones rotate accounts, vary their wording, use shortened URLs, and sometimes hold a short, normal-looking conversation before dropping a payload. Some impersonate admins with near-identical usernames. Keyword blocklists alone do not keep up with this, which is why the protection below works on behaviour and message structure rather than fixed word lists.
What a Telegram bot attack is
A Telegram bot attack is a coordinated spam wave: many bot accounts join a group in a short window and post together, usually timed for when admins are likely offline. The goal is to flood the chat faster than a human can react and to outlast manual banning by sheer volume.
You stop a bot attack the same way you stop a single spammer, layered:
- CAPTCHA at the door breaks the automation, because each account now needs a human to solve a challenge before it can post.
- AI Spam Intelligence scores the accounts that get through and auto-kicks the ones that match the spammer profile, often after only 2-3 messages.
- Spamfinder deletes the individual spam messages and restricts the senders.
Because removal happens within milliseconds and penalties for repeat offenders escalate sharply, a coordinated wave accumulates penalties across all its accounts and gets removed before it can take over the chat.
How to stop spam bots on Telegram: step by step
These steps map directly to toggles in the dashboard. You can enable any subset, but using them together gives layered protection, because each layer catches what the others miss.
1. Turn on CAPTCHA verification for new members
CAPTCHA verification challenges every new member before they can send messages. New joiners get a simple challenge (a short arithmetic question or a button interaction) and stay restricted to read-only until they solve it. This is the single biggest deterrent against automated bots, because a script that joins hundreds of groups at once cannot solve an individual human challenge for each one.
Configure three things from the dashboard:
- Master toggle — enable verification for all new members.
- Time limit — how long a new member has to solve the challenge. Accepts 1 to 60 minutes; 15 minutes is the default.
- Kick on timeout — when enabled, members who do not verify in time are removed automatically. They can rejoin and try again; it is not a permanent ban.
A practical setting for a public group under attack is CAPTCHA on, a short time limit (5 minutes), and kick-on-timeout enabled. A casual community can use a 20-30 minute limit so members who join during a commute still get in. Full setup and tuning is covered in the CAPTCHA verification guide.
CAPTCHA proves a member is human. It does not prove good intent, so the next two layers handle accounts that pass the door and then misbehave.
2. Enable AI Spam Intelligence (free)
AI Spam Intelligence scores every user on a behavioural risk scale from 0.0 (safe) to 1.0 (definitely spam), then automatically kicks anyone whose score reaches 0.75 when the feature is enabled. It does not just read one message. It weighs the account's whole picture: violation history, how often offences occur relative to messages sent, whether the profile picture is flagged NSFW, whether the account has no handle, and whether it belongs to an unusually large number of groups with almost no engagement in each. Those are the fingerprints real spam accounts leave.
Positive signals pull the score down, which is what protects genuine members. Admin rights in other groups, a high message count with few violations, and steady participation all lower the risk score. Typical legitimate members sit around 0.05-0.30.
To turn it on: open your group's management page, go to Settings > AI Moderation, and enable Enable AI Spam Detection in the Spam Detection section. The system starts analysing immediately and applies retroactive analysis to past violations, so known bad actors already in your group get flagged at once.
This is a free-tier feature. Every group gets it regardless of plan. Detail and real-world tuning are in the AI Spam Intelligence guide.
3. Enable Spamfinder content detection (free)
Spamfinder is a machine-learning classifier that reads each message and returns a spam probability from 0% to 100%. Where AI Spam Intelligence judges the account, Spamfinder judges the content. It is trained on millions of spam and legitimate messages across many languages, so it recognises promotional language, suspicious link structures, repeated text blocks, and formatting tricks even when the exact wording changes.
You set the threshold yourself with a slider:
- 60-70% — high sensitivity, catches subtle promotion, more false positives.
- 75-80% — balanced, recommended for most groups (75% is the default).
- 85-90% — conservative, only the clearest spam.
When a message crosses your threshold, Spamfinder deletes it and the message sender gets a temporary restriction (a 5-minute mute is the standard first step), with longer restrictions stacking for repeat offenders. Enable it under Settings > AI Moderation > Spam Detection with the Enable Spam Finder toggle, then set the threshold slider. Changes apply to new messages immediately.
Spamfinder is also free for every group. See the spam pattern detection guide for threshold tuning and examples.
4. Block invite links
Block Invite Links specifically targets Telegram and WhatsApp invite links, the most common way spammers redirect your members to their own groups. It is a focused filter that complements Spamfinder: Spamfinder catches broad promotional spam, this catches group-promotion links directly. Enable it in the same AI Moderation section.
5. Let escalating punishments handle repeat offenders
You do not have to ban each spammer by hand. Violations feed an automated punishment system where penalties grow for repeat offenders rather than adding up in a flat line. A first minor offence is a small, recoverable penalty; the next ones rise steeply. A legitimate member who trips the system once gets a minor warning they recover from. A spam bot that relies on repetition piles up penalties fast and is removed automatically.
This is what makes the system merciful to humans and unforgiving to bots: bots cannot outlast it by posting more, because posting more is exactly what removes them.
How the layers work together
The three main layers cover different attack stages, which is why running them together works better than any one alone:
- CAPTCHA stops fully automated bots at the join event.
- Spamfinder removes the spam messages from accounts that get through and mutes the sender.
- AI Spam Intelligence watches behaviour over time and kicks accounts whose risk score crosses 0.75, including human-operated spam accounts that solved a CAPTCHA manually.
When both spam layers run, the link tightens. Every message Spamfinder flags becomes a violation on that user's record, which raises their AI risk score. Enough flagged messages push the score past 0.75, and AI Spam Intelligence kicks the account. That is the escalation path from "delete one message and mute" to "remove the account" without an admin lifting a finger.
The same protection applies whether a group has 50 members or hundreds of thousands. Enforcement runs automatically, so it does not depend on an admin being online. That matters most during off-hours, which is exactly when bot attacks are timed.
Recommended setup for a group under attack
If spam bots are hitting your group right now, turn on all of the following from Settings > AI Moderation:
- CAPTCHA verification — on, short time limit, kick on timeout.
- AI Spam Intelligence — on (auto-kick at risk score 0.75).
- Spamfinder — on, threshold around 75%.
- Block Invite Links — on.
Then watch the group statistics for a week. If legitimate messages are being flagged, raise the Spamfinder threshold by 5%. If obvious spam slips through, lower it by 5%. The defaults are tuned for most communities, so most groups need little adjustment.
Free vs. paid: what stops spam at no cost
The two layers that catch most spam attacks, AI Spam Intelligence and Spamfinder, are free for every group, along with CAPTCHA verification, invite-link blocking, and the core moderation and punishment system. There is no paywall on stopping spam bots.
Paid plans add capacity and extra media moderation on top of the free anti-spam core:
- Gold: $4.99/month
- Platinum: $9.99/month
- Ultimate: $49.99/month
The free tier also includes 500 image scans and 1,000 sentiment checks per month plus the full moderation toolkit. You can run an effective anti-spam setup on the free tier alone and upgrade only if you need more scan volume. Compare plans in the premium guide.
Frequently asked questions
How do I get rid of spam bots on a Telegram group?
Add an anti-spam bot and turn on three things from the dashboard: CAPTCHA verification so new bots cannot post until a human solves a challenge, AI Spam Intelligence so risky accounts are auto-kicked at a 0.75 risk score, and Spamfinder so spam messages are deleted and senders muted. All three are on the free tier, and together they remove most spam without manual moderation.
Is there a free anti-spam bot for Telegram?
Yes. Telegram Bot App's two main anti-spam layers, AI Spam Intelligence and Spamfinder, are free for every group regardless of plan, as are CAPTCHA verification and invite-link blocking. Paid plans add image-scan and media capacity, not the core spam protection.
What is a Telegram bot attack and how do I stop it?
A Telegram bot attack is a coordinated wave of spam bot accounts joining and posting together, usually when admins are offline. You stop it by layering CAPTCHA (breaks the automation at the join), AI Spam Intelligence (auto-kicks the accounts that match the spammer profile), and Spamfinder (deletes the spam content). Because penalties escalate for repeat offenders and removal happens in milliseconds, the wave is cleared before it can flood the chat.
How does the bot stop spam bots without banning real members?
It judges behaviour and content, not just keywords. Genuine members build a low risk score (typically 0.05-0.30) through normal participation, so they are not kicked. Spamfinder's threshold lets you require high confidence (75%+) before a message is flagged, and the punishment system gives an accidental first offence a minor, recoverable penalty. False-positive rates in most communities are below 0.2%.
Will the spam filter block real crypto, investment, or business links?
Not from established members posting in context. Spamfinder scores message structure and language, so a long-time member sharing a news article scores differently from a new account posting "Invest now, 1000% returns guaranteed." If legitimate links from one source keep getting flagged, raise your Spamfinder threshold a few points to let them through while still catching obvious spam.
How do I stop bots on Telegram during off-hours?
This is where automation matters most, because bot attacks are timed for when admins sleep. AI Spam Intelligence and Spamfinder run continuously and act on their own, auto-kicking high-risk accounts and deleting spam without anyone online. Review the automatic-kick log in the morning to confirm the removals were correct.
Can spam bots solve the CAPTCHA?
Pure automated bots cannot solve the challenge, so CAPTCHA blocks them at the door. Some operations pay human workers to solve challenges manually, which is far more expensive and slow than running a script. Those manually-verified accounts still get caught afterward by Spamfinder and AI Spam Intelligence once they start posting, so the layered setup covers this case.
How fast does the bot react to new spam tactics?
Spamfinder is a machine-learning classifier retrained on updated spam data, so it recognises new variants of known tactics automatically. Changing "crypto investment" to "digital asset opportunity" does not change the structural patterns it scores. AI Spam Intelligence updates its risk scores in near real time as new behaviour data arrives.
Do new members get watched more closely than regulars?
Yes. New accounts get tighter scrutiny because spam bots almost always use fresh or low-history accounts. A new member with no handle, no profile picture, and membership in dozens of groups starts at a higher risk score than an established member. As genuine new members participate normally, their score settles into the safe range and the extra scrutiny eases off.
What if a real member gets kicked by mistake?
Open their User Intelligence report to see exactly which factors raised their score, then reinvite them if it was a false positive. Their risk score decays over time as they build a clean history. Automatic kicks are logged for review, so admins keep full oversight of every automated decision.
What is a Telegram spam info bot?
When people look for a "spam info bot" they usually want to check whether an account is a known spammer. Telegram Bot App provides this through User Intelligence: every account carries a spam rating from 0.0 (trustworthy) to 1.0 (spammer), built from behaviour and violation history across groups. You can open any member's User Intelligence report to see their spam rating, risk level, and full violation history, and a public spam-rating API returns the same information as JSON. The "spam info" lives in the dashboard and API rather than in a separate command you type in chat.
How do I stop spam messages and spam-group links in my group?
Three settings handle the bulk of it. Spamfinder deletes spam messages the moment they are posted and mutes the sender. AI Spam Intelligence removes the spammer accounts and spam bots behind them, auto-kicking anyone who reaches a 0.75 risk score. And invite-link blocking stops the "join my spam group" links that spamming groups rely on, deleting any message containing a Telegram invite link. Together they clear spam messages and the spam-group promotion that usually comes with them, without an admin watching the chat.