KeyRotate
A developer tool that monitors API keys and AI subscriptions and helps replace them when they need rotating.
At a glance
A native Mac app for monitoring and managing your servers, services, and devices, with an AI administrator that never sees your passwords.
| Category | Developer & Business Tools |
|---|---|
| Languages | English |
| Platforms | Mac |
| Requires | macOS 13 Ventura or later |
| Developer | Enfour, Inc. |
FrontierStack is Enfour’s server-management app for macOS. It turns one Mac into a control room for the servers, services, and devices you run, so you can check health, work on remote machines over SSH, review security, and fix problems without keeping a row of Terminal windows open. It is a modern replacement for the old macOS Server tools and handles Macs, Linux, Windows, Raspberry Pi, and network gear side by side.
Its built-in AI Administrator takes plain-English requests, runs read-only checks first and shows the exact script behind any change, which waits on an approval card until you say yes. Passwords, keys, and tokens stay in the macOS Keychain: the AI only ever sees secret names, and outgoing prompts are scrubbed and can be screened by a Prompt Firewall. It can run on Apple Intelligence on macOS 27, on a local model, or with a cloud provider of your choice, and coding agents such as Claude Code, Codex, Cursor, or Grok can use its tools over MCP without receiving credentials.
The download is free. A Standard licence covering up to three Macs and ten linked servers costs US$49 (¥7,500) a year or US$299 once; Full Fleet removes the limits. Every licence includes a year of KeyRotate, Enfour’s API-key manager. FrontierStack draws on Enfour’s experience running production services on Apple hardware since 1992.
How we use it: Enfour uses FrontierStack to monitor client systems in our Systems Administration service.
Key features
- Monitor and manage Macs, Linux, and Windows servers and devices from one Mac, over SSH
- AI Administrator that diagnoses first and runs changes only after your approval
- Credentials kept in the macOS Keychain and hidden from any AI, with a Prompt Firewall
- Web, database, and site setup with Cloudflare DNS and tunnels, plus Docker containers on any linked server
- Security and malware audits, alerts to Slack, Telegram, LINE, email, and SMS
- 500+ self-hosted and SaaS services, MCP access for coding agents, iPhone, and iPad companion
- Native app for macOS 13 Ventura or later, Apple silicon, and Intel
| Category | Developer & Business Tools |
|---|---|
| Languages | English |
| Website | https://frontierstack.app |
| Requires | macOS 13 Ventura or later |
| Platforms | Mac |
| Version | 2.0 |
| Developer | Enfour, Inc. |
Visit websiteBuy FrontierStack
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