Short answer: a Telegram bot for a small business is a program that answers customers or teammates inside Telegram and passes work on to your other tools: your CRM, calendar, spreadsheet or inbox. Telegram does not charge for bots by default, so the cost is mostly the build and the AI usage behind it. With me, one bot with one clear job starts from €950 excl. BTW. Since 2 August 2026, EU rules also expect a bot that talks to people to make clear it is an AI.
This guide is for owners and team leads who keep answering the same questions in a chat app and wonder whether a bot can take that over. It covers what a business bot can actually do, what Telegram allows and limits, how a bot is built with n8n, how it compares with WhatsApp, which privacy and EU AI rules to plan for, and what it costs. Technical claims come from Telegram’s and n8n’s own documentation, linked at the end.
What a business Telegram bot can do
A bot is most useful when it has one job. Teams that try to build “an assistant that does everything” usually end up with something nobody trusts. These are the jobs that work well in practice:
- Answer repeat questions. Opening hours, prices, delivery times, how to book. The bot answers from a short, approved knowledge base and says so when it does not know.
- Qualify leads before a call. The bot asks three or four questions (what do you need, budget, timing, contact details), writes the answers to your CRM or a sheet, and alerts you only when the lead looks real. My AI lead-vetting case study follows this pattern for a consultancy.
- Turn messages into documents. I built a Telegram bot that turns a voice note into a PowerPoint for a medical practice: the voice note is transcribed with OpenAI, the fields fill a Google Slides template, and the files come back in the same chat.
- Summarise and remember. A group-chat bot built with n8n, PostgreSQL and AI models summarises long discussions and answers questions about them.
- Internal tools. Stock checks, daily reports, approval requests or “who is on call” lookups, restricted to your own team.
- Notifications. New order, failed payment, form submission or server alert, sent to the right chat the moment it happens.
What a bot should not do on its own: make binding promises, quote prices it has not been given, handle complaints, or touch payments without a human check. Build in a handover to a person from day one.
What Telegram gives you, and what it limits
Telegram describes itself as one of the top 10 most downloaded apps in the world with over 1 billion active users. For a business, the useful part is its Bot API, which Telegram documents in detail and which bots can use at no cost by default. According to Telegram’s bot documentation, bots can use:
- Commands, keyboards and buttons so customers tap an answer instead of typing it.
- Mini Apps, small web apps that open inside Telegram for forms, dashboards or approvals.
- Payments through third-party payment providers that support bots and Mini Apps.
- Business bots (Secretary Mode), which let a bot process messages from a connected business account and, where permitted, reply on the owner’s behalf. The account owner decides which chats the bot can access.
- AI features such as streaming replies and threaded conversations, with the model, memory and logic left to you.
Telegram’s FAQ is also clear about limits you should design around. By default bots can message their users at no cost, within these rates:
| Situation | Limit per Telegram’s FAQ |
|---|---|
| One chat | Avoid more than one message per second; bursts may work, then 429 errors start |
| A group | No more than 20 messages per minute |
| Bulk notifications | About 30 messages per second |
| Files the bot can download | Up to 20 MB |
| Files the bot can send | Up to 50 MB |
Paid broadcasts exist, at 0.1 Stars per message above the free 30 per second, but Telegram requires at least 100,000 Stars on the bot’s balance and at least 100,000 monthly active users. A small business will never need that. For a few hundred customers, the free limits are far more than enough.
How a Telegram bot is built with n8n
n8n is a workflow tool: each step of the bot is a node you can see, test and change. A typical build looks like this:
- Create the bot. You start a chat with @BotFather, send
/newbot, choose a name and a username that ends in “bot”, and receive an access token. The username cannot be changed later, so pick it with care. n8n’s Telegram credentials use exactly this token. - Receive messages. n8n’s Telegram Trigger node starts a workflow for events such as a new message, a button press (callback query), a channel post or a business message. You can restrict it to specific chat IDs or user IDs, which is how an internal-only bot stays internal.
- Decide what to do. The workflow checks the message: a command, a button, free text or a voice note. Free text can go to an AI model together with your approved answers; a voice note can be transcribed first.
- Connect your tools. The same workflow can create a CRM record, check a calendar, add a row to a sheet or send you an email.
- Reply, or hand over. The bot answers in the chat, or tells the customer a person will follow up and alerts you in Telegram, email or your CRM.
Two details from the documentation save hours of debugging. Telegram can deliver updates by long polling or by webhook, and webhooks need a valid SSL certificate, work only on ports 443, 80, 88 and 8443, and do not support redirects. n8n adds that if you run it behind a reverse proxy you must set the WEBHOOK_URL environment variable to a public HTTPS address. And because Telegram allows only one webhook per bot, testing and production fight over it: use a separate bot for testing, or unpublish the live workflow while you test.
Where the workflow runs also matters for privacy, which is the next section.
Telegram or WhatsApp for customer chats?
The honest answer is: use the channel your customers already use. In some markets and communities that is Telegram; for many local customers in the Netherlands it will be WhatsApp or email. The costs are different:
- Telegram: bots can message users at no cost by default, within the rate limits above. Customers need a Telegram account, which many do not have.
- WhatsApp Business Platform: businesses are charged per message delivered, based on the country and the message category (marketing, utility, authentication or service). Service messages, the replies a business sends within the 24-hour window after a customer writes, are not charged, and neither are utility messages sent in response to a user. Marketing messages are charged. Meta publishes the rates per market, so check the current table for the Netherlands before you plan volume.
I build on Telegram first, and also connect website chat, email and WhatsApp Business through its official API. The workflow logic is the same; only the first and last node change. If you are not sure which channel fits, start with a short call and a list of where your customers write to you today.
Privacy and the EU AI Act: what to plan for
A bot that handles customer messages processes personal data, and one that uses AI also falls under the EU AI Act. This is not legal advice, but these are the points I design around.
What the bot can see
Telegram’s FAQ states that a bot can see a user’s public name, username and profile picture, the messages they send it, their interface language and the groups they share with it. It cannot see the phone number, last seen time or other chats unless the user shares them. Telegram also says every bot must have a privacy policy and its developer must delete a user’s data on request. So: publish a short privacy notice, store only what the job needs, and have a process for deletion requests.
Where Telegram is based
Telegram’s FAQ says its development team is based in Dubai, and its GDPR answer says it stores only the data it needs to run as a cloud service and does not use chat content for ad targeting. If your customers are in the EU and the messages are sensitive, discuss with your data-protection adviser whether Telegram is the right channel. For health, legal or financial details, collect them in a form on your own site instead and let the bot only send the link.
Telling people it is an AI
The AI Act’s transparency rules in Article 50 apply from 2 August 2026. Systems intended to interact directly with people must be designed so those people are informed they are dealing with an AI, unless that is obvious from the context. The 2026 Digital Omnibus on AI postponed the high-risk rules, not Article 50, according to EY’s summary, and law firm Houthoff lists a customer-service chatbot as a typical example of a system that is affected. The practical fix is cheap: the bot’s first message says it is an AI assistant, offers a human, and links to the privacy notice.
What a business Telegram bot costs
There are three cost lines: the build, the running costs and your own time.
| Cost line | What to expect |
|---|---|
| Telegram | No charge for bots by default, within the rate limits above |
| Build (my AI / Telegram Bot package) | From €950 excl. BTW: one bot with one clear job, conversation design and AI setup, a connection to your CRM, sheet or calendar, testing, handover and a usage dashboard |
| AI usage | Usually a few euros to a few tens of euros per month, depending on volume; I estimate it before the build |
| WhatsApp (if used) | Per message delivered, by category and country, from Meta’s published rates |
| Hosting for n8n | Depends on where n8n runs: your own server, a managed server or a cloud plan |
What pushes a quote up: several integrations, more than one language, a large knowledge base, a Mini App, or a complex handover. What keeps it down: one job, one channel, a short list of approved answers and one person who owns the bot after launch. Every project starts with a fixed quote, and all prices are excl. BTW.
A five-step plan to start
- Pick the one job. Write it in one sentence: “The bot qualifies new enquiries and books a call.”
- Write the answers. Collect the ten questions you answer most, and the approved answers. This is the bot’s knowledge base.
- Define the handover. Who gets alerted, where, and what the customer is told while they wait.
- Decide on disclosure and data. The AI notice, the privacy notice, what is stored and for how long.
- Measure one number. Questions answered without a human, qualified leads per week, or hours saved. Review it after a month.
Want a bot for your own business? Book a free 20-minute call or describe the job through the contact form, and you get a fixed quote and a plan. You can also see the AI and Telegram bot service page.
Frequently asked questions
Does it cost money to run a Telegram bot?
Telegram does not charge bots to message their users by default, within its rate limits: about one message per second in a chat, 20 per minute in a group and about 30 per second for bulk notifications. You pay for the build, the AI model usage and the server that runs the workflow.
Can I build a Telegram bot without coding?
Telegram’s FAQ says there is no out-of-the-box way to create a working bot if you are not a developer. A workflow tool such as n8n removes most of the code, but you still need to design the conversation, connect the tools and secure the setup. That is the part I do for you.
Does the bot have to say it is an AI?
If it uses AI to talk directly with people, the AI Act’s Article 50 requires that they are informed, unless it is obvious from the context. The rule applies from 2 August 2026. The simplest approach is a clear first message and an easy way to reach a human.
Can the bot hand the chat over to a person?
Yes. The bot can escalate to a person in Telegram, email or your CRM, and tell the customer what happens next. I recommend a handover for complaints, quotes and anything involving payment.
Telegram or WhatsApp: which is cheaper?
Telegram bots can message users at no cost by default. WhatsApp Business charges per delivered message by category and country, although service messages inside the 24-hour customer window are free. The cheaper channel is only useful if your customers actually use it, so start from where they write to you today.
Sources
- Telegram Bots FAQ (limits, webhooks, paid broadcasts, file sizes)
- Telegram Bot Features (Business bots, Mini Apps, payments, AI agents)
- Telegram FAQ (user numbers, GDPR, what bots can see, where Telegram is based)
- n8n Telegram Trigger node, Telegram credentials and common issues
- WhatsApp Business Platform pricing
- AI Act, Article 50, the European Commission AI Act Service Desk timeline, EY on the Digital Omnibus on AI and Houthoff on the transparency obligations
Rules and prices change. Check the linked sources for the current position before you decide.
Systems & Automation Specialist
Alec Asgari is a systems and automation specialist with experience in CRM implementation, workflow automation, and cross-functional process design. He writes about organizational strategy, technology, and operational execution.
