Four Great Interfaces.
Zero Compromises.
Choose the exact interface that fits your flow. Every capability is 100% synchronized in real time through the background daemon IPC server.
1. The Glassmorphic Desktop GUI (Featured)
Native Desktop Visual Elegance & Micro-Interactions
The primary desktop application built with Tauri v2 and React. Offers rich dark mode glassmorphism, responsive split panes, HTML sandboxed email viewing, visual drag-and-drop rule creation, and interactive calendar planning.
- Tauri v2 native performance with minimal memory & CPU footprint
- Sandboxed HTML email rendering with strict tracking protection
- Visual drag-and-drop rule builder, account switcher, and interactive calendar
- Customizable glassmorphic themes with instant light/dark toggle
2. The Vim-Fueled Terminal TUI
Keyboard-Driven Navigation for Distraction-Free Flow
A blazing-fast Ratatui terminal application built for power users who refuse to touch the mouse. Triage hundreds of emails per minute using Vim keybindings, single-key chords, and instant split views.
- Vim motions (j/k/h/l/g i/e/s) & single-key archive/delete chords
- Interactive NSQL rule editor & dry-run condition tester built-in
- Full split-pane layout with unread badges and live log streaming
- Zero-latency rendering (<16ms frame rate target)
3. The Lightning POSIX CLI
Unmatched Command-Line Speed & Automation
Designed for developers, sysadmins, and shell enthusiasts who want zero-friction scriptability. Query inboxes, search calendars, and trigger automations directly from your shell with deterministic JSON outputs.
- Pipeable JSON outputs for jq & shell scripts (--json)
- Headless background sync daemon (nunciod)
- Instant search across 100,000+ messages in under 10 milliseconds
- Complete CLI subcommands for accounts, mail, calendar, and rules
4. The Native LLM Agent Co-Pilot (MCP)
AI Agents Working Directly Alongside You
Exposes Nuncio's local database and actions to LLM agents (Claude Desktop, Antigravity CLI, Cursor, ChatGPT) via Anthropic's Model Context Protocol (MCP) over standard stdio JSON-RPC streams.
- Ask AI agents to summarize long threads or draft replies automatically
- Schedule calendar meetings & check availability via natural language
- McpAgentPolicy enforcing RBAC capability flags & account/folder filters
- Automatic sensitive data redaction masking SSNs and credit cards