Custom Subdomains
With mcpr Cloud, you can claim a custom subdomain instead of using a random hash:
yourapp.tunnel.mcpr.appClaiming a subdomain
Section titled “Claiming a subdomain”- Sign up at cloud.mcpr.app
- Go to the dashboard → Subdomains
- Claim your subdomain (e.g.,
yourapp) - Use the tunnel token from the dashboard in your
mcpr.toml:
mcp = "http://localhost:9000"tunnel_token = "your-cloud-token"Your tunnel URL will be yourapp.tunnel.mcpr.app — persistent across machines, not just restarts.
Benefits over random URLs
Section titled “Benefits over random URLs”| Free tunnel | Cloud subdomain | |
|---|---|---|
| URL format | abc123.tunnel.mcpr.app | yourapp.tunnel.mcpr.app |
| Persists across restarts | Yes (same machine) | Yes (any machine) |
| Persists across machines | No | Yes |
| Shareable with team | Difficult (URL changes) | Yes (stable URL) |
| Configurable in AI client | Must update when URL changes | Set once |
Subdomain rules
Section titled “Subdomain rules”- Subdomains must be unique across all mcpr Cloud users
- 3-63 characters, lowercase letters, numbers, and hyphens
- Cannot start or end with a hyphen
- First come, first served