Drafting workstation
Pick a channel target, paste context, get output shaped for email, threads, posts, or messages, then paste into Mail, Slack, LinkedIn, or wherever you work.
Draft in your voice.Paste and send.
Perennial Echo applies your communication fingerprint to everyday outbound writing for individuals and teams. Your voice is a file you own. Drafts go to the API you choose, not through us.
Preview the app interface
Click any screenshot to view full size
Why Perennial Echo
Your voice is a file
Import your communication fingerprint (the Markdown spec you own from Perennial) or start from the built-in template. Switch between personal and team fingerprints anytime.
Local-first by design
Fingerprints and drafts stay on your machine. Remote calls are only for app updates and the AI APIs you configure with your own keys.
Everything you need to write in your voice
GUI first: channel-aware drafts on your desktop. Built-in MCP second: the same rules in assistants and workflows you already run, not a coding-only add-on.
- Unlimited free usage: core drafting stays free forever
- No account and no subscription required
- Local storage for fingerprints, drafts, and preferences
- Bring your own keys across six providers: OpenAI, Anthropic, xAI, Google, Kimi, and Qwen
- Four channel targets today: Email, Social post, Thread, and Message
- Built-in MCP server: same voice and channel rules in AI assistants you already use
- Default fingerprint template plus personal and team fingerprint switching
- Auto-copy output, text editor with restore, and hide-promotions toggle
- Simple onboarding and auto-update when new releases ship
BUILT-IN MCP
Same fingerprint in your assistants
Perennial Echo ships with an MCP server bundled and ready to use: the same generation engine and channel rules as the app. Connect it to AI assistants and automations you already run. Included in the free app, not a separate integration to request.
Free forever for how you actually work
Core drafting, channel targets, fingerprint import, BYOK, and built-in MCP stay free with generous usage: no account, no subscription, no Perennial login. Pay only your AI provider when you generate.
On the roadmap
Coming soon, not in the current build.
- Three more targets: Long form, Legal, and Academia
- Three tone presets: Professional, Friendly, and Direct
- Input and output history
- Optional cloud team fingerprints for shared rollout
Download Perennial Echo
Latest release: v0.1.20
The app checks for updates automatically.
Need a communication fingerprint?
Echo runs the Markdown spec you own. Create one on Perennial, then import it in Echo.