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

Toolpiper

by ModelPiperversion 0.0.10-betai★ –i–
Registry nameio.github.ModelPiper/toolpiper

Install

Overview

Description from the maker (original English)

On-device MCP tools for macOS: local AI, speech, vision, browser automation, system control.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: –
  • Transport:
  • Category: Design, images & audio

Install

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

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on your computer with your user’s permissions (files, network, apps).
  • The registry lists no key to fill in.

The maker has not listed install details in the registry. See the maker’s README below.

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 6, 2026

  • ✓ Pass

    Maker matches the repo

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

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • – 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

Compared with others in Design, images & audioi

  • More stars than 0% of the other 2171 servers in this category
  • Published to the registry more recently than 59% of the other 2171 servers in this category
  • Basic checks equal to or better than 100% of the other 2171 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 Toolpiper safe?

It passed 1 of 1 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 –, and the latest version (0.0.10-beta) reached the registry 21 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code.

What can I use instead?

In the same category: Figma Context MCP, Claude Real Video, Figma MCP Server

Alternatives

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

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

Give your coding agent access to your Figma data. Implement designs in any framework in one-shot.

Runs on your computer★ 16,165MITUpdated 5 months ago
Install

Claude Real Video

by HUANGCHIHHUNGLeo

Let any LLM watch a video locally — and search everything it has ever watched.

Runs on your computer★ 2,284MITUpdated 2 months ago
Install

Figma’s official server gives AI your design data so it can turn designs into code or describe them accurately. Connects to Figma’s cloud.

Runs in the cloud★ 2,152Updated 13 months ago
Install

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.

ToolPiper MCP Server for macOS

400+ Model Context Protocol tools, all running on-device. ToolPiper is a native macOS app that turns your Mac into a local AI platform: bundled inference (llama.cpp on Metal, Apple Intelligence, speech on the Neural Engine), an OpenAI-compatible API at localhost:9998, and a built-in MCP server that exposes the whole machine to any MCP client: Claude Code, Cursor, Codex, or your own scripts.

No cloud required for local models. No Docker. No Python. No API keys. Your prompts, files and outputs stay on your Mac, and you can check what ToolPiper connects to yourself: lsof -i -P | grep ToolPiper while it runs.

  • Website: https://modelpiper.com/toolpiper
  • Download: https://modelpiper.com/download (free; the full local model runner has no caps and needs no account)
  • Docs: https://modelpiper.com/docs/toolpiper
  • Tool catalog: https://modelpiper.com/mcp-tools
  • Community: https://github.com/ModelPiper/modelpiper-community

This repository is the official home for ToolPiper's MCP server manifest (server.json), the Claude Code plugin (plugins/toolpiper), and the setup guides. The ToolPiper app itself is not open source, but its privacy claims do not ask for trust: every byte of network traffic is observable on your own machine. Open-source siblings live in this org: PiperSR (ANE super-resolution model), FluidAudio, mlx-audio-swift.

Quick start

Install ToolPiper, launch it once, then connect any MCP client over Streamable HTTP. Loopback connections need no auth: no token, no OAuth step.

Download the disk image from modelpiper.com/download, or install with Homebrew:

brew tap modelpiper/tap

brew trust modelpiper/tap brew install --cask toolpiper

The trust line is required once: Homebrew 6 refuses casks from taps outside its own until you trust them.

Claude Code, as a plugin (one server entry, nothing to configure by hand):

claude plugin marketplace add ModelPiper/toolpiper

claude plugin install toolpiper@modelpiper

Claude Code, as a manual server:

claude mcp add --transport http toolpiper http://127.0.0.1:9998/mcp

Codex, as a plugin:

codex plugin marketplace add ModelPiper/toolpiper

codex plugin add toolpiper@modelpiper

Or as a manual server: codex mcp add toolpiper --url http://127.0.0.1:9998/mcp. Codex signs in to ToolPiper once; approve ToolPiper's consent page when it appears.

Any other MCP client, in its server configuration:

{

"mcpServers": { "toolpiper": { "type": "http", "url": "http://127.0.0.1:9998/mcp" } } }

Claude Desktop, as a one-click extension: download toolpiper-1.0.0.mcpb from Releases and double-click it; Claude Desktop shows its install sheet. The JSON block above does not apply to Claude Desktop, whose config file runs local stdio servers only. Source, build script and privacy statement: desktop-extension/. It is a small Node.js forwarder that relays Claude Desktop's stdio to the same loopback server, and it serves the directory profile: the catalog minus every tool that uses an AI model to generate images, video or audio.

Installing with an AI agent? Point it at llms-install.md.

What's in the catalog

400+ tools, 5 resources, and 5 workflow prompts. Names follow _ (vision_ocr, system_window_snap, browser_assert). The live catalog, with per-tool documentation, is at modelpiper.com/mcp-tools.

CategoryExamplesWhat it covers
Core AIchat, audio_transcribe, audio_speak, text_embedLocal LLM inference, speech-to-text and text-to-speech on the Neural Engine, embeddings
Apple frameworks + RAGvision_ocr, image_analyze, text_analyze, rag_queryApple Vision OCR, image analysis, natural-language analysis, hybrid HNSW + BM25 document search
Browser automationbrowser_snapshot, browser_action, browser_assert, browser_interceptChrome via CDP: AX-tree snapshots, self-healing selectors, network mocking, Web Vitals, coverage
Testingtest_run, test_save, test_exportSaved browser test sessions, fast replay, Playwright/Cypress export
System actionssystem_*Windows, Spaces, clipboard (with OCR'd history), audio, displays, Finder, Calendar, Reminders, Contacts, notifications, processes, network, Bluetooth, Shortcuts, and more
Video creatorvideo_record, video_render, video_edit_timelineScreen-recorded screenplays, non-destructive timeline editing, OTIO/FCP XML/EDL export
Outreachhn_search, reddit_search, github_compare, gsc_analyticsHN, Reddit, GitHub, Google Search Console
Model managementmodel_search, model_download, model_loadSearch HuggingFace, download GGUF/CoreML, load/unload
Routing + integrationsendpoint_set, endpoint_recommend, claude_code_installSwitch inference endpoints per session, Claude Code helper install

Resources: toolpiper://status, toolpiper://models, toolpiper://backends, toolpiper://tests, toolpiper://categories Prompts: setup-model, audit-page, create-test, voice-over, research-topic

Category and profile filtering

Don't want the whole catalog in context? Pass category or profile as a query parameter on the /mcp URL. Both the tool list and the server instructions trim to match:

# Just LLM inference (core category)

claude mcp add --transport http toolpiper "http://127.0.0.1:9998/mcp?category=core"

Web dev workflow (automation profile: core + browser + testing)

claude mcp add --transport http toolpiper "http://127.0.0.1:9998/mcp?profile=automation"

Transport

TransportEndpointAuth
Streamable HTTPPOST http://127.0.0.1:9998/mcp (plus GET /mcp, the SSE channel for tools/list_changed)None for loopback peers, enforced at the kernel socket, so Host/Origin spoofing cannot widen it. LAN and remote peers present Authorization: Bearer.

Streamable HTTP is the only transport. ToolPiper has no stdio server, and older guides that described one are obsolete.

Privacy

Your prompts, files and outputs stay on your Mac when you use local models. ToolPiper contacts our servers for update checks, a license check when you're signed in and a daily activity count, and it can send optional usage counts. You can turn the last two off in Settings, and none of them include your content. There are no crash uploads, and local use needs no account. Everything else is traffic you ask for: model downloads from HuggingFace, a cloud provider you add, and tools that explicitly target the web. You can watch it yourself:

lsof -i -P | grep ToolPiper

You will see update, license and activity requests to modelpiper.com hosts, optional usage counts to PostHog if you leave them on, plus any downloads or providers you chose, and none of them carry your content. Full policy: modelpiper.com/privacy.

Requirements and pricing

  • macOS 26 or later on Apple Silicon
  • Free: the full local model runner and every speech feature (transcription, text to speech, dictation). No caps, no account.
  • Paid plans add more of the catalog. The current ladder is at modelpiper.com/pricing.

FAQ

Is this the same as "ToolPipe"? No. ToolPiper (this page, modelpiper.com) is the macOS MCP server by ModelPiper. Unrelated projects with similar names exist in some directories.

What does the MIT license in this repo cover? The contents of this repository: the server manifest, the Claude Code plugin, and the setup guides. The ToolPiper app itself is proprietary.

Does it work without an internet connection? Yes. Inference, speech, vision, RAG, and system tools are all on-device. You only need the network to download models.

Can other machines connect? Loopback is zero-config. LAN and remote access go through bearer-token auth.

I already added ToolPiper with `claude mcp add`. Do I need the plugin? No. Claude Code keeps your manual toolpiper server and skips the plugin's copy while the manual one exists, so nothing doubles up. The plugin is for a fresh setup, or if you remove the manual entry.

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