Telegram Welcome Bot: Greet, Verify, and Onboard New Members

A telegram welcome bot greets every new member who joins your group, then guides them through the first steps of membership: an automated welcome message, a CAPTCHA check that confirms they're human, and a set of rules they can read on demand. Instead of a join going unnoticed, each new arrival gets a consistent introduction and your group gets a checkpoint that automated spam accounts have to clear before they can post.

Telegram Bot App handles all three of these at the moment of joining. This guide covers what each piece does, how the settings fit together, and how to tune them for your community.

What a telegram welcome bot actually does

The job splits into three parts, all triggered the instant someone joins:

1. Welcome message — a custom greeting posted in the group chat, with your own text and Telegram markdown formatting.
2. CAPTCHA verification — a short challenge the new member must complete before they can send messages. Until they pass, their posting rights are held back.
3. Rules — an auto-generated or manually written rule set the member can pull up with the /rules command.

Each part has its own toggle, so you can run all three or just the ones you want. A small private group might only need the welcome message. A large public group facing constant spam waves usually wants the welcome message and CAPTCHA both on, with rules referenced in the greeting.

Automated welcome messages

The welcome message is the first thing a new member sees from your group. When the welcome toggle is on, the bot posts your greeting in the group chat the moment someone joins. When it's off, members join silently.

The greeting text is yours to write. It accepts custom text up to a few hundred characters and supports Telegram markdown, so you can use bold, italic, code, and [link text](url) syntax to structure the message and point to resources. A good greeting usually does three things:

• Acknowledges the new member. "Welcome to the group!" satisfies the basic need to feel noticed.
• Points to the rules. "Read our rules with /rules" tells them where expectations live.
• Suggests a first action. "Introduce yourself in the chat" turns a passive join into participation.

Keep it short. New members skim, so two or three lines covering where the rules are and how to get started beats a wall of text. You can change the greeting at any time from the dashboard, and you can disable it temporarily during a recruitment push when dozens of members join at once and repeated welcomes would clutter the chat.

The greeting fires for returning members too, not just first-timers, so anyone who left and rejoined sees the current information again. For more on writing greetings and structuring rules, see the welcome messages and rules guide.

CAPTCHA verification on join

The welcome message is friendly. The CAPTCHA is the gate. When verification is enabled, every new member receives a short challenge, often a simple arithmetic question or a button interaction, and their ability to send messages stays restricted until they answer correctly. A genuine person clears it in seconds. An automated spam script that joined to dump preset links can't, because the challenge needs a human in the loop.

That single requirement breaks the spam economic model. Spam operators rely on joining many groups at once and posting immediately. A per-account human challenge raises the cost enough that your group stops being worth targeting.

Three settings control how strict the gate is:

• CAPTCHA toggle — on or off for the whole group. Turn it up during spam waves, relax it during recruitment.
• Time limit — how long the new member has to answer. Configurable from 1 to 60 minutes, with 15 minutes as the default. Shorter limits give spam operators less time to solve challenges by hand; longer limits give real people who join on a commute time to respond.
• Timeout enforcement — what happens when the limit runs out. With auto-removal on, unverified members are kicked when their time expires (they can rejoin and try again, they're not banned). With it off, they stay in the group with restricted posting until they verify.

During the verification window the member can read the chat but not post, so they see what the group is about while unverified accounts stay quiet. The system also sends reminders as the deadline nears, which cuts down on real users losing access because they missed the first prompt.

A reasonable starting point for most groups is 15 minutes with auto-removal on, then adjust based on what your dashboard shows. If you see legitimate members timing out often, lengthen the limit. The CAPTCHA verification guide goes deeper on configuration and edge cases like users whose privacy settings block bot direct messages.

Auto-generated rules

Rules give the welcome message somewhere to point. Telegram Bot App can generate a rule set from your active moderation settings, so the written rules match what the bot actually enforces. Turn on NSFW filtering and a line about it appears in the rules; turn off language enforcement and the language rule drops out. Members read the current rules with the /rules command in the chat.

You have two modes:

• Auto-generated — the bot builds the rules from your enabled features (spam protection, language enforcement, media restrictions, and so on) and keeps them in sync as you change settings. Best when your moderation is mostly about spam, content, and basic civility.
• Manual — you write the rules yourself, which lets you cover behavioural and cultural expectations no automated system can judge, like critique etiquette or topic boundaries.

Many groups run auto-generated rules for the technical baseline and add a few manual lines for community-specific conduct. Whichever you pick, reference /rules inside your welcome message and a pinned post so new members know it exists at the moment they're most ready to read it.

How the three pieces work together

The welcome message, CAPTCHA, and rules form the onboarding layer, and they hand off to the rest of the moderation stack once a member is in.

Passing the CAPTCHA proves a member is human. It doesn't prove good intent, so verified members still pass under the same checks as everyone else. The behavioural spam score and the message-content classifier watch early messages closely (a manually solved CAPTCHA from a spam-for-hire worker tends to show its hand quickly), profile scanning evaluates the account's avatar and characteristics, and sentiment and toxicity detection flags hostile behaviour a CAPTCHA would never catch. A single account solving one challenge doesn't get a free pass into the group.

Both anti-spam layers run on the free tier. The behavioural risk score rates each account from 0.0 to 1.0 and auto-kicks at 0.75 or above; the content classifier scores messages against a threshold you set from 0 to 100 percent. You can read how they differ in the AI Spam Intelligence and spam pattern detection guides.

Which telegram welcome bot settings to start with

Settings depend on how much spam your group attracts. Three common profiles:

• Public group, high spam (crypto, deals, large open communities): welcome message on, CAPTCHA on, 5 to 10 minute limit, auto-removal on. Strict, because the threat is constant.
• Regional or hobby group, moderate traffic: welcome message on, CAPTCHA on, 20 minute limit, timeout warnings rather than auto-removal. Casual members get room to respond.
• Small private group: welcome message on, CAPTCHA optional. Manual greetings from existing members often carry the culture, and rules stay available for reference.

If you're deciding on the best telegram welcome bot settings for your group, treat the defaults as a baseline and adjust from the dashboard rather than guessing. The live feed and verification metrics show whether your time limits are too short or your spam threshold is too loose. The threshold optimization guide covers how to read those numbers.

What this bot is and isn't

To set expectations clearly: Telegram Bot App is a moderation and management bot for Telegram groups. It does not build other bots, and it isn't a userbot. On the onboarding side, the welcome message bot telegram feature posts greetings, the CAPTCHA verifies humans, and the rules system documents expectations. Everything past that, spam scoring, NSFW image scanning, language enforcement, badwords filtering, and automated punishments, is the broader moderation stack that onboarding feeds into.

The free tier includes the full onboarding set (welcome messages, CAPTCHA, rules) plus core moderation: spam detection, language enforcement, media restrictions, badwords, profile scanning, and invite-link blocking, with 500 image scans and 1,000 sentiment analyses per month. Paid plans (Gold $4.99/mo, Platinum $9.99/mo, Ultimate $49.99/mo, roughly 20 percent off with annual billing) raise those quotas and add support. Welcome and CAPTCHA features themselves don't sit behind a paywall.

Frequently asked questions

What is a telegram welcome bot?

A telegram welcome bot is an automated tool that greets new members when they join your group and runs them through onboarding steps. In Telegram Bot App that means three things at the moment of joining: a custom welcome message in the chat, a CAPTCHA challenge that confirms the member is human before they can post, and a /rules command that shows your group's rules.

Do welcome messages and CAPTCHA cost anything?

No. Welcome messages, CAPTCHA verification, and auto-generated rules are part of the free tier, along with core moderation like spam detection and invite-link blocking. Paid plans (Gold, Platinum, Ultimate) raise quotas on metered features such as image and sentiment scanning, but the onboarding tools aren't gated.

How long do new members get to complete the CAPTCHA?

You set the time limit anywhere from 1 to 60 minutes; the default is 15. If a member doesn't verify in time and timeout enforcement is on, they're removed from the group, but they can rejoin and try again. If enforcement is off, they stay with restricted posting until they verify.

Can I write my own welcome message?

Yes. The greeting text is fully custom and supports Telegram markdown, so you can use bold, italic, code, and links. Keep it short and point to your rules with /rules. You can edit or disable it from the dashboard at any time, which is handy during recruitment drives when many members join at once.

Will a CAPTCHA stop every spam bot?

It stops automated scripts, which is most of them, because the challenge needs a human to solve it. Sophisticated operations sometimes pay human workers to solve challenges, so CAPTCHA isn't the whole defence. Verified members still pass under the behavioural spam score, content classifier, and profile scanning, which catch manually operated spam accounts after they're in.

Do welcome messages reach members who rejoin?

Yes. The greeting posts every time someone joins, whether it's their first time or a return visit, so returning members see the current rules and information again. You can word the greeting to acknowledge both, for example "Welcome (back) to the group."

Add the welcome bot to your group

Onboarding works best when the welcome message, CAPTCHA, and rules are set up together, so new members get a consistent first experience and spam accounts hit a gate before they can post. To get started, follow the step-by-step guide to adding the bot, then open the dashboard to configure your greeting and verification settings. You can also see the full feature overview on the homepage.