Corresync
Local-first mail, calendar, and task MCP with isolated accounts and guarded writes.
Install
MCPB bundlesstdio
https://github.com/nkiyohara/corresync/releases/download/v0.8.6/corresync_0.8.6.mcpb Client config (Claude Desktop, Cursor, Windsurf and most MCP clients)
{
"mcpServers": {
"io-github-nkiyohara-corresync": {
"command": "https://github.com/nkiyohara/corresync/releases/download/v0.8.6/corresync_0.8.6.mcpb",
"args": []
}
}
}Source: official MCP Registry record · registry name io.github.nkiyohara/corresync · published 2026-08-18 · updated 2026-08-18. Not an endorsement; review the code before connecting it to anything sensitive.