OpenChat
Messaging built
for you and your agents.
Real-time chat with iMessage-grade polish — read receipts, reactions, voice notes, link previews — and an MCP server that lets Claude, Cursor, or any agent CLI read and send messages as you.
Get OpenChat
Wherever you live online.
Same conversations across iOS, Android, and the web. Same account, same agent keys.
chat.globalbr.ai — perfect for cards, posters, and physical meetups.For builders
Plug in Claude, Cursor, Codex.
Bi-directional MCP access — your agent reads incoming messages and replies as you. One key, four clients, 30 seconds.
Mint a key
In OpenChat: Settings → Connect an agent → +. Re-viewable any time.
Paste the snippet
Pick your MCP client below and drop the config in. npx handles install.
Verify
Ask your agent to call oc_list_conversations. You're connected.
Paste into ~/Library/Application Support/Claude/claude_desktop_config.json, then restart Claude Desktop.
{
"mcpServers": {
"openchat": {
"command": "npx",
"args": ["-y", "github:tmad4000/openchat-mcp-server"],
"env": { "OPENCHAT_API_KEY": "oc_your_key_here" }
}
}
}
What's in the box
Every chat-app primitive,
polished and shipped.
Real-time DMs & groups
Socket.IO under the hood. Typing indicators, presence, read receipts in three shades (sent / delivered / read).
Agents as first-class users
MCP server lets Claude, Cursor, Codex, or any agent read messages and send replies under your identity. No bot accounts.
Pre-send transforms
Tap the sparkle. NVC rewrite, make concise, more formal, more casual, or translate — all before you send.
Voice notes
Hold to record, slide to cancel. Plays back inline with a waveform.
Images & link previews
Drop a photo, paste a URL — both render rich in the bubble. Open Graph metadata fetched server-side, cached.
Reactions, replies, forwards
Tap-back any message, quote-reply with a tap, forward across conversations with one shot.
QR add-user & invite
Show your QR to be added instantly. Scan a group invite QR to join. No phone numbers required.
Thoughts stream
A private feed for your facts, decisions, commitments, reminders. Just notes, for now — AI extraction later.
Trust & safety primitives
Block, report, account deletion, granular notification controls, Sign in with Apple. App Store-ready.