KeyTalk AI: Chat & Writing

KeyTalk AI is a fast, private AI chat app built for writing and getting real work done. Bring your own Anthropic API key and chat directly with Claude models. Your conversations go straight to Anthropic under your own key and never touch our servers.

No account. No sign up. No tracking.

WRITE ANYTHING
- Fix grammar and spelling in seconds
- Summarize long text into the key points
- Rewrite to sound clearer and more human
- Draft and polish emails
- Turn rough notes into a clean Slack message
- Research questions and get thorough answers

A REAL CHAT APP
- Switch between Claude models (Sonnet, Opus, Haiku)
- Beautiful answers with headings, lists, tables and syntax highlighted code
- Mermaid diagrams render right inside the chat
- Attach an image and ask about it
- Optional on device memory so it remembers useful facts about you
- Incognito mode for chats that are never saved

PRIVATE BY DESIGN
- Bring your own Anthropic API key (BYOK)
- Your key is stored only on your device, encrypted in the system keystore
- Chats are stored locally and backed up to your own cloud, not ours
- Nothing is sent to KeyTalk servers because there are none

KNOW YOUR USAGE
- Track tokens and estimated cost by day, week, month or a custom range
- Per model breakdown so you always know what you are spending

FAST AND EFFICIENT
- Replies stream in live as they are written
- Prompt caching and short, focused outputs keep token use low

KeyTalk AI is perfect for writers, students, developers, founders and anyone who wants a private, no nonsense AI assistant in their pocket.

To use KeyTalk AI you need your own Anthropic API key from console.anthropic.com. KeyTalk AI is an independent client and is not affiliated with or endorsed by Anthropic.