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mkostersitz

cloud-connectors

by mkostersitz
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cloud-connectors

Monorepo of MCP connectors for personal cloud services, packaged as one-click Claude Desktop extensions (.mcpb). Built for eventual marketplace publishing: each connector ships separately with its own credential model and privacy story; shared plumbing lives in a core package.

Packages

Package

What

Auth

packages/core

@cloud-connectors/core — shared MCP skeleton: stdio bootstrap, tool-result/error helpers, retry-aware fetch, file utils, HTML→text

—

packages/windows-live-connector

Personal Microsoft Account: Outlook Mail + OneDrive via Microsoft Graph (19 tools)

OAuth 2.0 + PKCE, tokens in DPAPI/Keychain

packages/icloud-connector

iCloud: Mail via IMAP/SMTP + iCloud Drive via the local sync folder (17 tools)

Apple app-specific password (stored in OS keychain by Claude Desktop, sensitive user_config)

Related MCP server: fastmail-mcp

Build & pack

$env:PATH = "C:\tools\nodejs;$env:PATH"
npm install            # workspace install at repo root
npm run build          # core -> windows-live -> icloud, deterministic order
node scripts/pack-mcpb.mjs windows-live-connector   # -> dist-bundle/windows-live-connector-<ver>.mcpb
node scripts/pack-mcpb.mjs icloud-connector         # -> dist-bundle/icloud-connector-<ver>.mcpb

scripts/pack-mcpb.mjs exists because npm workspaces hoist dependencies to the root node_modules (and symlink core), which would break mcpb pack's self-contained-bundle assumption. It stages the target package with a real npm install --omit=dev (core injected as a tarball) and packs from the staging dir.

Bundles install by double-clicking the .mcpb / dragging it onto Claude Desktop (Settings → Extensions). Per-connector setup (Entra app registration, Apple app-specific password) is documented in each package's README/manifest description.

Note: a .mcpb built on Windows carries Windows-only native bindings for the secure token store (keytar); on macOS both connectors fall back to permissions-restricted plaintext storage with a logged warning. Repack on a Mac for Keychain-backed storage there.

History

Grew out of the standalone project where I tinkered with windows live connectivity because I live in that eco system in addition to Google and Apple.

This server cannot be deployed

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Maintenance

ActivityInactive
ResponsivenessNo issues

Resources

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