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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.

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Maintenance

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Resources

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