Local-first MCP for provider-neutral mail and calendars with isolated accounts and guarded writes.
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io.github.nkiyohara/corresync is an MCP server that local-first MCP for provider-neutral mail and calendars with isolated accounts and guarded writes. Its tool list has not been published yet over stdio, sse and http, requires no API key, and scores 39/100 on MCPpedia's security, maintenance and efficiency rubric.
Config is the same across clients — only the file and path differ.
{
"mcpServers": {
"io-github-nkiyohara-corresync": {
"command": "<see-readme>",
"args": []
}
}
}Are you the author?
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Provider-neutral, local-first tooling for AI agents, scripts, and you.
No automated test available for this server. Check the GitHub README for setup instructions.
Five weighted categories — click any category to see the underlying evidence.
No known CVEs.
No package registry to scan.
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Mail, calendars, and tasks. One local MCP server and CLI.
Provider-neutral, local-first tooling for AI agents, scripts, and you.
Website · Getting started · Providers · Features · Safety · Privacy · Terms · Technical docs
corr brings isolated mail, calendar, and task accounts into one terminal—and
one local
Model Context Protocol server.
Gmail, Google Calendar, and Google Tasks are available through a Desktop OAuth
client in a Google Cloud project you control. Corresync-managed Google OAuth
remains dormant. The canonical task tools also include explicit Microsoft To
Do, Todoist, TickTick, and CalDAV VTODO routes; remaining task-provider adapters
stay unavailable until their contracts are implemented.
$ corr mail search --all-accounts \
--query 'subject:"Quarterly plan"' --limit 3
● work · microsoft-owa Ana Ruiz Plan review
· personal · jmap Finance Plan receipt
$ corr agenda list --all-accounts \
--start 2026-07-29T00:00:00Z \
--end 2026-07-30T00:00:00Z
Connect an agent to the same local core:
corr integrations detect
corr integrations plan codex claude-code
corr integrations setup codex claude-code
# Phase A also includes github-copilot, gemini-cli, qwen-code, qoder, kimi-code
Then ask naturally:
Check my inboxes, cal
... [View full README on GitHub](https://github.com/nkiyohara/corresync#readme)