# Varta
> AI moderation bot for Telegram groups and channels

Varta is an AI-powered anti-spam bot that learns the specific rules and context of each Telegram group. Unlike keyword-based bots, Varta adapts to your community automatically.

## What Varta Does

Varta protects Telegram groups and channels from spam, scams, and malicious content using artificial intelligence. The bot analyzes messages in context — not just keywords — to catch sophisticated threats while avoiding false positives.

Key capabilities:
- **AI-powered spam detection**: Understands message intent, sender reputation, and conversation context
- **Image and QR code analysis**: Detects visual spam, screenshots of scams, and phishing QR codes
- **Link checking**: Integrates with Google Safe Browsing to block malicious URLs
- **Multi-language support**: Works in 33 languages including English, Ukrainian, Russian, Spanish, German, French, Arabic, Hindi, Turkish, and more
- **Group-specific learning**: Adapts to each community's unique patterns and norms
- **Cross-group intelligence**: Spammers banned in one group are flagged across all your communities
- **Voice interaction**: Only Telegram bot that understands voice commands from admins

## Progressive Trust

Varta's unique progressive trust system lets admins test the bot's judgment before giving it power:

1. **Shadow Mode**: Bot watches and flags spam privately, doesn't delete anything
2. **Delete Only**: Removes spam messages but doesn't ban users
3. **Cautious**: Deletes obvious spam automatically, flags edge cases for review
4. **Autonomous**: Handles everything, admins get summaries instead of play-by-play

This eliminates the "install and pray" problem where bots have full power from day one.

## Key Features

- Progressive trust (shadow → delete → cautious → autonomous)
- Voice and text interaction with the bot
- 33 languages
- Cross-group intelligence
- Image and QR code analysis
- Google Safe Browsing integration
- Works for both groups and channels
- No web dashboard needed — everything in Telegram
- GDPR compliant (EU company, EU servers)

## Pricing

- **Free**: Forever plan (500 members, basic keyword protection)
- **Hobby**: $5/month (2,000 members, 10K AI checks/month)
- **Starter**: $19/month (6,500 members, 50K AI checks/month)
- **Pro**: $49/month (25,000 members, 250K AI checks/month)
- **Business**: $99/month (100,000 members, 1M AI checks/month)
- **Enterprise**: Custom pricing (contact us)

Annual plans: 20% discount
Trial model: free to add; no timer starts until the bot catches its FIRST spam message. From that moment, the admin has a 5-day active AI trial. Groups that never see spam stay free — the clock never starts. No credit card required.
Money-back guarantee: 48 hours on first payment

Member limits are total across ALL groups — unlimited number of groups per plan.

## How Varta Compares

**vs Combot**: Combot focuses on analytics and manual rules. Varta uses AI that learns automatically. Combot doesn't analyze images or share cross-group intelligence.

**vs Rose Bot**: Rose is free and feature-rich but purely keyword-based. Requires manual configuration. Varta uses AI with zero setup.

**vs Shieldy**: CAPTCHA-based bot. Ineffective against human spam farms in 2026. Creates friction for legitimate members.

**vs Watchdog**: AI-powered like Varta but starts at $29/month with no free tier. English-only. No progressive trust system.

**vs ModerAI**: AI-powered but $9 per chat/month (expensive for multiple groups). No voice interaction, no progressive trust.

## Use Cases

**Crypto communities**: High spam volume, sophisticated scams. Varta catches phishing, fake airdrops, and investment scams.

**Job/hiring groups**: Fake job offers and recruitment scams. Varta detects patterns in "work from home" spam.

**Marketplace groups**: Needs lenient rules for legitimate ads. Varta learns what's normal for your marketplace.

**Support groups**: Legitimate users share links and contact info. Varta understands context to avoid false positives.

**Channels**: Comment spam, scam links in posts, impersonators. Varta protects both groups AND channels.

## Technical Details

**AI Providers**:
- Primary: Anthropic (Claude models)
- Fallback: OpenAI (GPT models), Google (Gemini models)
- Data processing: API data not used for model training (contractual guarantee)

**Data Storage**:
- Primary servers: EU (Finland, Hetzner)
- Data retention: 90 days for flagged content, 180 days for reputation data
- GDPR deletion: /deletedata command or email request

**Company**:
- Legal entity: "DEEP IN" EDPK (ДИЙП ИН ЕДПК)
- Registration: EIK 208772397, Sofia, Bulgaria
- Data controller: EU-based, GDPR compliant

## Common Questions

**Q: Does Varta work for channels?**
A: Yes, both groups and channels. Analyzes comments, posts, and detects impersonators.

**Q: Can it delete legitimate messages by mistake?**
A: Any system can make mistakes. Progressive trust minimizes this — start in shadow mode, see what it catches, then give permissions. One-tap undo if needed.

**Q: How many groups can I protect?**
A: Unlimited groups per plan. Limits are based on total member count and AI check usage, not number of groups.

**Q: What languages does it support?**
A: 33 languages including English, Ukrainian, Russian, Spanish, German, French, Arabic, Hindi, Bengali, Turkish, Italian, Portuguese, Polish, Romanian, Dutch, Swedish, Czech, Greek, Hebrew, and more.

**Q: How is it different from keyword bots?**
A: Keyword bots match exact phrases (easy to evade, many false positives). Varta understands context, sender reputation, conversation flow, and adapts to your group's specific patterns.

## Developer API

Varta exposes a public REST API and MCP server for AI agents, bots, and developers.

### Spam Classification (via isitaspam.com)

- [POST /api/check](https://isitaspam.com/api/check): Classify a text message as SPAM / SUSPICIOUS / SAFE using 7-layer AI detection (multi-LLM consensus + vector similarity + URL safety + stylometrics). Returns verdict, confidence, category, risk signals, plain-language recommendation. Free: 15/day per IP; 50/day with free API key.
- [GET /api/check/:slug](https://isitaspam.com/api/check/:slug): Retrieve a past classification result.
- [GET /api/stats](https://isitaspam.com/api/stats): Daily aggregated stats (total, spam, suspicious).
- [GET /api/recent](https://isitaspam.com/api/recent): Five most recent public spam verdicts.
- [POST /api/feedback](https://isitaspam.com/api/feedback): Correct a verdict (requires API key). Feeds training corpus.

### Auth

Pass X-API-Key: varta_xxxxxxxx header to skip Cloudflare Turnstile and get higher rate limits.
Free API key: https://isitaspam.com/developers (instant, no email verification required to start)
Paid tiers: $19/mo = 2,000 checks/day; $49/mo = 10,000 checks/day

### MCP Server (Claude Code, Cursor, Manus)

Remote SSE URL: https://mcp.getvarta.com/sse
Auth: Authorization: Bearer YOUR_VARTA_API_KEY
Tools: check_spam_text, get_spam_stats, get_spam_examples
Install: claude mcp add varta --transport sse https://mcp.getvarta.com/sse --header "Authorization: Bearer YOUR_KEY"

### Machine-readable spec

OpenAPI 3.1: https://isitaspam.com/openapi.yaml

### Latency

p95 ~3s (LLM path), ~30ms (cache hit). Use on join-request queues or async flows — not per-message hot paths.

## Links

- Website: https://getvarta.com
- Add bot: https://t.me/Varta_moderator_bot?startgroup=true
- Developer API: https://isitaspam.com/developers
- MCP server: https://mcp.getvarta.com/sse
- OpenAPI spec: https://isitaspam.com/openapi.yaml
- Blog: https://getvarta.com/blog
- FAQ: https://getvarta.com/faq
- About: https://getvarta.com/about
- Privacy Policy: https://getvarta.com/privacy
- Terms of Service: https://getvarta.com/terms
- Contact: daryna@getvarta.com

## Articles

- How to Stop Spam in Telegram Groups (Complete Guide): https://getvarta.com/blog/how-to-stop-spam-in-telegram-groups
- Best Telegram Anti-Spam Bots Compared (2026): https://getvarta.com/blog/best-telegram-anti-spam-bots-compared
- What Is Progressive Trust?: https://getvarta.com/blog/what-is-progressive-trust-telegram-moderation

## Founder

Daryna Fornalska — founder of Varta. Built the product after managing high-volume Telegram communities with 10,000+ members and experiencing firsthand how existing spam bots fail against sophisticated threats.