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PopNx MCPMCP servers for people who use AI · explained in plain words

Extra Caffeine

by cwong5version 0.1.1i★ 1iRuns on your computer
Registry nameio.github.cwong5/extra-caffeine

How to install

What it does

Control Mac idle sleep with the free Extra Caffeine 1.2+ app. macOS 14+; local use only.

  • Connects Runs on your computer
  • Account or key No key needed
  • Category Clinics & health

Install

Pick the AI app you use, then copy the settings.

Passed 2/3 checks · Runs on your computer

First: which AI do you use?

Pick your app and the steps appear below.

Works with Claude, with some setup first

No key, nothing to install · Only the Claude desktop app (Windows or Mac), not the web or phone

  1. Download the maker’s installer

    Download the maker’s .mcpb file

    The .mcpb file comes straight from the maker; we do not change it

  2. Double-click the file, then click Install in the Claude desktop app

  3. Try it

    Use Extra Caffeine and tell me what you can do for me, then show me one thing

    ✓ If Claude says it is using Extra Caffeine or shows a Extra Caffeine tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

ChatGPT cannot connect Extra Caffeine yet

Extra Caffeine runs on your computer, but ChatGPT can only connect servers that run on the web

What you can do instead

A · Use an app that can connect Extra Caffeine

  • No key, nothing to install · Only the Claude desktop app (Windows or Mac), not the web or phone

B · Others in Clinics & health that work with ChatGPT

Picked from the most used in the same category, only ones that connect by address with no key

Claude Code cannot connect Extra Caffeine yet

The maker only provides an installer for the Claude desktop app

What you can do instead

A · Use an app that can connect Extra Caffeine

  • No key, nothing to install · Only the Claude desktop app (Windows or Mac), not the web or phone

Cursor cannot connect Extra Caffeine yet

The maker only provides an installer for the Claude desktop app

What you can do instead

A · Use an app that can connect Extra Caffeine

  • No key, nothing to install · Only the Claude desktop app (Windows or Mac), not the web or phone

VS Code cannot connect Extra Caffeine yet

The maker only provides an installer for the Claude desktop app

What you can do instead

A · Use an app that can connect Extra Caffeine

  • No key, nothing to install · Only the Claude desktop app (Windows or Mac), not the web or phone

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

JSON settings are under “For developers” below

Stuck? Ask people who use Extra Caffeine💬 Discussion →

At a glance

Downloads per weeki
Not on npm/PyPI
Licencei
No licence stated
Connection
Runs on your computer
Latest versioni
0.1.1
Published to registryi
Nov 9, 2026
Code last changedi
Nov 6, 2026
Maker
cwong5
Packages
mcpb: …/extra-caffeine-0.1.0.mcpb
Registry status
Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Run on your computer in

ClaudeGooseLM StudioMsty StudioCherry StudioVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatRaycast

All apps, with pros and cons →

Related guides

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 13, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account cwong5, which owns the repo

  • ✓ Pass

    Still maintained

    Code last changed 7 days ago

  • ! Caution

    Has a licence

    GitHub could not identify the licence type; open the file to check

  • – Not applicable

    Endpoint responds

    This one runs on your computer; there is no internet endpoint

  • – Not applicable

    Sign-in with OAuth

    Runs on your computer and uses local settings instead

  • … Not checked yet

    No hidden instructions in tool descriptions

    Runs on your computer; we can only read tool lists from internet endpoints

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

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User reviews

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Compared with others in Clinics & healthi

  • More stars than 82% of the other 1095 servers in this category
  • Published to the registry more recently than 85% of the other 1095 servers in this category
  • Basic checks equal to or better than 51% of the other 1095 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Extra Caffeine safe?

It passed 2 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed 7 days ago, and the latest version (0.1.1) reached the registry 4 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need MCPB on your computer.

What can I use instead?

In the same category: Medplum MCP, Mirobody, Apple Health

Others in the same category

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Medplum MCP

Securely access and manage FHIR healthcare data stored in Medplum.

by medplumWidely used★ 2.8KUpdated 4 months ago

Runs in the cloud✓ service owner · medplum.com

Mirobody

Lab results to LOINC codes and UCUM units, symptoms and diagnoses to ICPC-3. Offline, no API key.

by thetahealthGrowing↓ 290/wk★ 1.5KUpdated 3 days ago

Runs on your computer✓ thetahealth.ai

Apple Health

Local-first Apple Health MCP server for questions about your sleep, workouts and heart data.

by neiltronGrowing↓ 106/wk★ 575Updated 2 months ago

Runs on your computer

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Extra Caffeine for AI agents

Keep a local Mac awake while authorized AI work needs it. Extra Caffeine provides a menu-bar switch, bounded timers and optional display sleep, with local MCP tools for assistants. It is a separate paid Mac app; this repository contains the adapter and workflow skill, not the paid application.

Get the Mac app · Setup guide · MCP Registry entry

Install the workflow skill

Review the skill, then use your client's supported skill installer. With the Skills CLI:

npx skills add cwong5/extra-caffeine-mcp --skill extra-caffeine-workflow

Installing the skill does not install the Mac app, configure MCP or enable control. Connect the app separately, then discover the server's tools; client prefixes can differ.

Connect the local app

Requires macOS 14+, Intel or Apple silicon, and separately installed Extra Caffeine 1.2+. Purchase/download through the product website or Mac App Store. Open the chosen edition and enable AI assistants.

  • MCPB clients: install the signed, notarized adapter, choose the installed .app and enable the extension. Claude Desktop installation and read-only connection were tested.
  • Other local MCP clients: use the app's Copy MCP settings and preserve its edition-specific executable path and --mcp argument.
  • Verify connection with get_status. Tool discovery alone does not mean control is enabled.

The Registry name is io.github.cwong5/extra-caffeine. No hosted endpoint or API key is needed. Adapter details.

When an agent should suggest it

Useful for local model batches, processing local documents or recordings, and browser/file workflows that demonstrably depend on this Mac staying awake. A cloud-only AI job may continue without it. Ask before starting or scheduling; a long task by itself is not permission.

Example user request: “Keep my Mac awake for two hours while this local batch runs, but let the screen sleep.” Read the baseline first. Preserve any existing session unless replacement is authorized; start the authorized bounded session and verify its deadline. Let it expire by default. The skill contains exact arguments, scheduling and timeout recovery.

The app must remain open. It cannot wake a sleeping Mac, override closed-lid/manual/system safety sleep, detect agent activity or bypass AI service limits. No automatic installation, purchase or access enablement.

*Cheaper than using your tokens to write it.*

Copyright Chester Wong Consulting Ltd. All rights reserved.