Instant Microsoft
Activation
Get your Confirmation ID in seconds. Automated phone activation service for Windows & Office products.
How It Works
Get your Confirmation ID in 3 simple steps
Register & Top Up
Create your free account and add funds via cryptocurrency or promo code.
Enter Installation ID
Open phone activation on your PC, paste the Installation ID into our panel.
Get Confirmation ID
Instantly receive your CID. Enter it to activate Windows or Office.
See It in Action
Why Choose KeyCID
We provide the best service for Microsoft product activation
Lightning Fast
Get your Confirmation ID in under 3 seconds. Our automated system ensures instant delivery every time.
Bank-Level Security
End-to-end encryption, rate limiting, and secure infrastructure. Your data is always protected.
Powerful REST API
Full-featured API with documentation. Generate API keys, integrate into your workflow or build your own tools.
Multi-Language
Full interface available in English and Russian. Switch languages instantly with one click.
Best Prices
Starting from just $0.025 per CID. No subscriptions, no hidden fees. Pay only for what you use.
Telegram Bot
Get CID, check keys, and manage your balance directly from Telegram. Fast and convenient.
24/7 Support
Get help anytime via Telegram. Our support team is always ready to assist you.
Simple, Transparent Pricing
Supported Products
Phone activation for all Windows & Office versions
Windows
Microsoft Office
Other Products
Powerful REST API
Integrate CID generation into your projects with our simple API
curl -X POST https://keycid.com/api/get-cid \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"iid": "002666-077894-165590-671640
-289740-451088-042498-367498"
}'{
"success": true,
"cid": "849264-370215-948127-536041
-719382-084523-261748-593016",
"blocks": [
"849264", "370215", "948127",
"536041", "719382", "084523",
"261748", "593016"
],
"remaining_balance": 4.96
}Trusted by Thousands
Instant Delivery
CID generated and delivered in under 3 seconds, automatically.
Secure Payments
Cryptocurrency payments with full encryption and privacy protection.
Money Back Guarantee
If the CID doesn't work, contact support and get your balance refunded.
“I activate dozens of machines every week. KeyCID saves me hours compared to calling Microsoft. The API integration is a game changer.”
“Best prices on the market and the speed is incredible. I've been using KeyCID for over a year without a single issue.”
“Simple, fast, reliable. Top up balance, enter IID, get CID. No unnecessary steps. Highly recommended!”
Get CID directly from Telegram
Our bot lets you get CID, check keys, and manage balance without leaving Telegram
Instant CID
Send IID → get CID in seconds
Photo Recognition
Send a screenshot — bot extracts IID automatically
Key Check
Send a product key → get Live/Dead status
Balance Management
Check balance and buy CID packages
Frequently Asked Questions
A Confirmation ID is a code used to complete phone activation of Microsoft products like Windows and Office. Instead of calling Microsoft, our service generates it instantly.
Open the phone activation dialog on your Windows or Office product (usually via slui 4 or the activation wizard), and you'll see the Installation ID displayed on screen.
We accept cryptocurrency payments (Bitcoin, USDT, and more) as well as promo codes. Top up is instant once the transaction is confirmed.
Yes! Our REST API lets you automate CID generation. Generate an API key from your dashboard and integrate it into your scripts or tools.
Ready to Activate Your Products?
Join thousands of satisfied customers. Start activating your products right now.