Stable domains for local development ports, eliminating conflicts with free open-source tunnels and paid cloud options
Keep your Mac awake while AI agents work, also with the lid closed
Stage
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Founded
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Based in
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TR
Pricing model
Freemium
Free trial
Pricing
Free and Open Source: $0 (unlimited local tunnels, open source); Professional: $49/mo or $490/yr (unlimited cloud tunnels, visitor auth, feedback comments); Team: $149/mo or $1,490/yr (everything in Professional plus unlimited members, teams, shared subdomains, approvals, organization billing); Ente
Free for 7 days. After trial: $9 once (launch price), full price $14. One payment covers up to 3 Macs. Includes 1 year of updates.
Key features
Stable local domains (*.portzero.local) for processes and containers
Cloud tunnels (*.tunnel.portzero.cloud) with HTTPS for LAN and internet access
Support for multiple programming languages
Git worktree support with per-branch URLs
AI agent integration with MCP server
Visitor authentication and access control
Feedback comments on live tunnels
Team access policies and approvals
Audit log (Enterprise plan)
Organization billing with no per-seat charges
Detects 40+ AI coding agents automatically
Keeps Mac awake with lid closed
Pause for 30 minutes, 1 hour, or until tomorrow
Stay reachable for 1, 2, or 4 hours
Display dims as lid closes
Sound notification when lid closes
iPhone hotspot fallback when Wi-Fi drops
Battery level indicator in menu bar
Command-line integration and MCP server support
What makes it different
Eliminates port conflicts by assigning stable virtual domains instead of port numbers
Free and open source for local use; no additional cost for cloud features on paid plans
Flat pricing with no meters, overages, or per-seat charges
Agent-ready with native MCP server integration for AI coding agents
Works across multiple OS and languages with zero port bookkeeping required
Agent-aware sleep prevention knows when your agents work and only keeps Mac awake during actual work
Closes lid without waking Mac or draining battery
Automatic iPhone hotspot switching when Wi-Fi drops
Port Zero
Agent Caffeine