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Corresync MCP Server

by nkiyohara Your server? Claim it
local only

Corresync runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 6 Nov 2026.

Local-first mail, calendar, and task MCP with isolated accounts and guarded writes.

—
Installs / week
not published
2
Stars
26 open issues
6 Nov 2026
Last commit
from GitHub
Apache-2.0
License
Go

What the code does

We read the source, 1 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Builds a database query by concatenation internal/provider/graphapi/task.go:20
const graphTaskSelect = "id,title,body,status,importance,startDateTime,dueDateTime," +
    "completedDateTime,isReminderOn,reminderDateTime,recurrence,categories"

type graphTaskList struct {
Touches key and credential files cmd/corr/graphical_login.go:165
        return nil, errors.New("--host must be an SSH alias or user@host; configure ports and jump hosts in ~/.ssh/config")
Touches key and credential files cmd/corr/graphical_login.go:165
        return nil, errors.New("--host must be an SSH alias or user@host; configure ports and jump hosts in ~/.ssh/config")

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

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Corresync — questions

Answers built from our own checks of this server.

Why is there no uptime for Corresync?
Corresync runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone.
Is Corresync open source?
Yes — it is published under the Apache-2.0 licence, written in Go, 2 stars on GitHub and 26 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.