saas.tf MCP Server
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@saas.tf MCP ServerI need a subdomain for my demo app"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
@benjp009/saas-tf-mcp-server
Get 2 FREE subdomains forever with automatic DNS provisioning for your projects!
MCP (Model Context Protocol) server for saas.tf - the easiest way to get free subdomains for your demos, side projects, and development environments directly through Claude Code and other LLM-powered development tools.
✨ Features
2 FREE Subdomains Forever - No credit card required
Automatic DNS - Google Cloud DNS provisioning (~60 seconds)
Zero Configuration - Works out of the box with Claude Code
Secure Authentication - OS keychain storage for credentials
Smart Suggestions - Get alternatives when names are taken
Quota Management - Easy upgrade path to paid plans
🚀 Quick Start
Installation for Claude Code
npm install -g @benjp009/saas-tf-mcp-serverThen add to your Claude Code MCP settings:
{
"mcpServers": {
"saastf": {
"command": "saastf-mcp"
}
}
}Restart Claude Code, and you're ready to go!
First Subdomain in 60 Seconds
Once installed, just ask Claude:
"I need a subdomain for my demo app"Claude will:
Check if you're authenticated (or help you register/login)
Check subdomain availability
Create your subdomain with DNS automatically configured
Give you your full domain (e.g.,
myapp.saas.tf)
📖 Available Tools
The MCP server provides 12 tools for complete subdomain management:
Authentication (4 tools)
saastf_auth_status- Check if you're logged in and see your quotasaastf_register- Create a new account (2 FREE subdomains included!)saastf_login- Login with your credentialssaastf_logout- Logout and clear stored credentials
Subdomain Management (5 tools)
saastf_check_availability- Check if a subdomain name is availablesaastf_list_subdomains- View all your subdomainssaastf_create_subdomain- Create a new subdomain with automatic DNSsaastf_update_subdomain- Update the IP address for a subdomainsaastf_delete_subdomain- Delete a subdomain (frees up quota)
Subscription Management (3 tools)
saastf_get_quota- Check your current usage and remaining quotasaastf_get_plans- View available subscription planssaastf_create_checkout- Get Stripe checkout URL to upgrade
📚 Resources
The server also provides 3 resources:
saastf://documentation- Complete guide (markdown)saastf://user/profile- Your profile and subscription details (JSON)saastf://user/subdomains- All your subdomains (JSON)
💡 Example Conversations
Create Your First Subdomain
You: "Create a subdomain myapp pointing to 192.168.1.100"
Claude: Let me check your authentication status...
✓ Not authenticated yet. Let me help you register!
To get started with your 2 FREE subdomains, I'll need:
- Email address
- Password (min 8 characters)
What email would you like to use?
You: "user@example.com and password MyPass123"
Claude: ✓ Account created successfully! Welcome to saas.tf!
You now have 2 FREE subdomains available.
Now creating myapp.saas.tf...
✓ Successfully created myapp.saas.tf → 192.168.1.100
DNS will be active in ~60 seconds. You have 1 of 2 subdomains remaining.Check What Subdomains You Have
You: "List my subdomains"
Claude: Your subdomains (2/2 used):
• myapp.saas.tf → 192.168.1.100
• staging.saas.tf → 192.168.1.200
Remaining: 0 subdomains
💡 You've used all your free subdomains. Use saastf_get_plans
to see upgrade options, or delete one to free up space.Update IP Address
You: "Update myapp to point to 10.0.0.5"
Claude: ✓ Updated myapp.saas.tf → 10.0.0.5
DNS changes will propagate in ~60 seconds.Check Available Plans
You: "What plans are available?"
Claude: Available Subscription Plans:
📦 Free
Price: $0
Quota: 2 subdomains
📦 5 Subdomains Package
Price: $10/year
Quota: 7 subdomains
Features:
• All free tier features
• Priority support
📦 50 Subdomains Package
Price: $50/year
Quota: 52 subdomains
Features:
• All free tier features
• Priority support
Use saastf_create_checkout to upgrade your plan.🔧 Technical Details
Subdomain Rules
Valid Format:
3-63 characters
Lowercase letters (a-z), numbers (0-9), hyphens (-)
Must start and end with letter or number
No consecutive hyphens
Examples:
✅ Valid:
myapp,demo-project,staging-api,test123❌ Invalid:
my(too short),MyApp(uppercase),demo--project(consecutive hyphens)
Reserved Names
150+ subdomains are reserved including:
System: admin, root, system, support, help
Technical: api, www, mail, ftp, ssh, cdn
DNS: ns, ns1-4, dns, mx, mx1-2
DNS Configuration
Provider: Google Cloud DNS
Record Type: A records (IPv4 only currently)
TTL: 300 seconds (5 minutes)
Propagation: ~60 seconds typically
Reliability: 99.99% uptime SLA
Security
JWT Authentication: Secure token-based auth
OS Keychain Storage: Uses macOS Keychain, Windows Credential Manager, Linux Secret Service
Encrypted Fallback: Encrypted file storage if keychain unavailable
HTTPS Only: All API communications encrypted
No Password Storage: Only secure tokens stored locally
🎯 Common Use Cases
Development:
dev.myapp.saas.tf,staging.myapp.saas.tfDemos:
demo.myproject.saas.tfSide Projects:
myblog.saas.tf,myapi.saas.tfTesting:
test.myapp.saas.tfWebhooks:
webhooks.myapp.saas.tfAPIs:
api.myservice.saas.tf
📦 Pricing
FREE Plan
2 subdomains forever
Perfect for hobbyists and side projects
No credit card required
All core features included
PACKAGE_5 ($10/year)
7 total subdomains (2 free + 5 additional)
Great for multiple projects
Priority support
PACKAGE_50 ($50/year)
52 total subdomains (2 free + 50 additional)
Perfect for agencies and teams
Priority support
🛠️ Advanced Configuration
Custom MCP Settings
You can configure the MCP server with environment variables:
{
"mcpServers": {
"saastf": {
"command": "saastf-mcp",
"env": {
"SAASTF_API_URL": "https://api.saas.tf/api/v1"
}
}
}
}Using with Other MCP Clients
The server works with any MCP-compatible client:
# Run the server directly
npx @benjp009/saas-tf-mcp-server
# Or install globally
npm install -g @benjp009/saas-tf-mcp-server
saastf-mcp🐛 Troubleshooting
Authentication Issues
# Clear stored credentials
# macOS
security delete-generic-password -s "saastf-mcp"
# Or delete the fallback file
rm -rf ~/.saastf-mcpKeychain Access Denied (macOS)
If you see keychain permission errors:
Open Keychain Access app
Find "saastf-mcp" in System or Login keychain
Right-click → Get Info → Access Control
Add Claude Code / your terminal to allowed applications
Connection Issues
Check your internet connection
Verify
https://api.saas.tfis accessibleCheck for firewall/proxy settings blocking the API
🤝 Contributing
Contributions are welcome! This is a fully open-source project.
Fork the repository
Create your feature branch (
git checkout -b feature/amazing-feature)Commit your changes (
git commit -m 'Add amazing feature')Push to the branch (
git push origin feature/amazing-feature)Open a Pull Request
📄 License
MIT License - see LICENSE file for details
🔗 Links
Website: https://saas.tf
npm: https://www.npmjs.com/package/@benjp009/saas-tf-mcp-server
Support: support@saas.tf
🌟 Show Your Support
Give a ⭐️ if this project helped you!
Made with ❤️ by the saas.tf team
Get your 2 FREE subdomains today at saas.tf!
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