three.ws Tutor

Name: three.ws Tutor
Author: nirholas

by nirholasversion 0.1.2i★ 279 (Stars for the whole repo)iRuns on your computer

Registry nameio.github.nirholas/tutor-mcp

How to install

What it does

Read a Pay-As-You-Learn tutoring session's itemized tab and close it for an attested invoice.

Connects Runs on your computer
Account or key No key needed
Category Games, sports, food & learning

Install

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

Passed 3/3 checks · Runs on your computer · ✓ Commands checked Nov 14, 2026

First: which AI do you use?

ClaudeWeb · app · phoneChatGPTWebClaude CodeTerminalCursorCode editorVS CodeCode editorOtherOther apps

Pick your app and the steps appear below.

Works with Claude, with some setup first

Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Open the Claude desktop app’s settings file
SettingsDeveloperEdit Config
Done

Paste these settings and save the file

{
  "mcpServers": {
    "tutor": {
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/tutor-mcp"
      ]
    }
  }
}

Done

Quit Claude and open it again
Done
Try it
Use three.ws Tutor and tell me what you can do for me, then show me one thing
✓ If Claude says it is using three.ws Tutor or shows a three.ws Tutor tool in the answer, you are connected

2 optional setting(s) (works without them)

The command above works without these. Add them only if you want to change something, following the maker’s description.

THREE_WS_BASE Base URL of the three.ws API that serves the tutor session endpoint. Override only when self-hosting or targeting a preview deployment. · default https://three.ws
THREE_WS_TIMEOUT_MS Per-request timeout in milliseconds for the tutor session reads and the close call. · default 20000

Descriptions are as written by the maker.

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

ChatGPT cannot connect three.ws Tutor yet

three.ws Tutor 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 three.ws Tutor

Steps for Claude →Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
Steps for Claude Code →Install Node.js on your computer first (one time)
Steps for Cursor →Install Node.js on your computer first (one time)
Steps for VS Code →Install Node.js on your computer first (one time)

B · Others in Games, sports, food & learning that work with ChatGPT

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

ShipSwift✓ ChatGPT
Anime Garden✓ ChatGPT
Summer Engine✓ ChatGPT

Works with Claude Code, with some setup first

Install Node.js on your computer first (one time)

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Done

Paste this command and press Enter

claude mcp add --scope user tutor -- npx -y @three-ws/tutor-mcp

Done

Type /mcp in Claude Code
You should see three.ws Tutor listed as connected
Done
Try it
Use three.ws Tutor and tell me what you can do for me, then show me one thing
✓ If Claude Code says it is using three.ws Tutor or shows a three.ws Tutor tool in the answer, you are connected

2 optional setting(s) (works without them)

The command above works without these. Add them only if you want to change something, following the maker’s description.

THREE_WS_BASE Base URL of the three.ws API that serves the tutor session endpoint. Override only when self-hosting or targeting a preview deployment. · default https://three.ws
THREE_WS_TIMEOUT_MS Per-request timeout in milliseconds for the tutor session reads and the close call. · default 20000

Descriptions are as written by the maker.

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

Works with Cursor, with some setup first

Install Node.js on your computer first (one time)

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Click this button to open Cursor
Open in Cursor
Cursor asks you to confirm; click Install
Done
Open the AI chat in Cursor in Agent mode
Done
Try it
Use three.ws Tutor and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using three.ws Tutor or shows a three.ws Tutor tool in the answer, you are connected

2 optional setting(s) (works without them)

The command above works without these. Add them only if you want to change something, following the maker’s description.

THREE_WS_BASE Base URL of the three.ws API that serves the tutor session endpoint. Override only when self-hosting or targeting a preview deployment. · default https://three.ws
THREE_WS_TIMEOUT_MS Per-request timeout in milliseconds for the tutor session reads and the close call. · default 20000

Descriptions are as written by the maker.

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

Works with VS Code, with some setup first

Install Node.js on your computer first (one time)

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Click this button to open VS Code
Open in VS Code
VS Code asks you to confirm; click Install
Done
Open the AI chat in VS Code in Agent mode
Done
Try it
Use three.ws Tutor and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using three.ws Tutor or shows a three.ws Tutor tool in the answer, you are connected

2 optional setting(s) (works without them)

The command above works without these. Add them only if you want to change something, following the maker’s description.

THREE_WS_BASE Base URL of the three.ws API that serves the tutor session endpoint. Override only when self-hosting or targeting a preview deployment. · default https://three.ws
THREE_WS_TIMEOUT_MS Per-request timeout in milliseconds for the tutor session reads and the close call. · default 20000

Descriptions are as written by the maker.

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

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 three.ws Tutor💬 Discussion →

For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

claude mcp add --scope user tutor -- npx -y @three-ws/tutor-mcp

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "tutor": {
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/tutor-mcp"
      ]
    }
  }
}

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "tutor": {
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/tutor-mcp"
      ]
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "tutor": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/tutor-mcp"
      ]
    }
  }
}

Values you fill in

THREE_WS_BASE env
Base URL of the three.ws API that serves the tutor session endpoint. Override only when self-hosting or targeting a preview deployment.
THREE_WS_TIMEOUT_MS env
Per-request timeout in milliseconds for the tutor session reads and the close call.

Descriptions are as written by the maker.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

At a glance

GitHub stars i: 279 (Stars for the whole repo)
This repo holds several MCP listings; its stars count once in rankings
Downloads per weeki: 62/wk
Licence i: Apache-2.0
Connection: Runs on your computer
Transport: stdio
Latest versioni: 0.1.2
Categoryi: Games, sports, food & learning
Published to registryi: Oct 11, 2026
Code last changedi: Nov 14, 2026
Maker: nirholas
Packages: npm: @three-ws/tutor-mcp
Repo: nirholas/three.ws
Website: three.ws
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

Claude Goose LM Studio Msty Studio Cherry Studio Cursor VS Code + GitHub Copilot Visual Studio Windsurf (Devin Desktop)Zed Kiro Cline Continue JetBrains AI Assistant Claude Code Codex CLI Gemini CLI OpenCode nodecode Warp LibreChat Raycast

All apps, with pros and cons →

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 14, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account nirholas, which owns the repo
✓ Pass
Still maintained
Code last changed today
✓ Pass
Has a licence
Uses Apache-2.0
– 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.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

User reviews

No reviews yet

Compared with others in Games, sports, food & learningi

More stars than 0% of the other 1496 servers in this category
Published to the registry more recently than 41% of the other 1496 servers in this category
Basic checks equal to or better than 100% of the other 1496 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 three.ws Tutor safe?

It passed 3 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 today, and the latest version (0.1.2) reached the registry 34 days ago.

Which apps can use it?

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

What can I use instead?

In the same category: Honcho, ShipSwift, Pm Claude Skills

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

Honcho

Memory that reasons: continual learning for stateful agents. Better context, fewer tokens.

by plastic-labsWidely used★ 8.1KUpdated 3 months ago

Runs in the cloud

How to connect

ShipSwift

40+ production-ready SwiftUI recipes for building full-stack iOS apps via MCP.

by signerlabsWidely used★ 3.3KUpdated 9 months ago

Runs in the cloud

How to connect

Pm Claude Skills

1310 professional Agent Skills + workflow recipes — searchable & fetchable over MCP.

by mohitagw15856Widely used↓ 2.5K/wk★ 1.5KUpdated 22 days ago

Runs on your computer

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.

@three-ws/tutor-mcp

Manage a Pay-As-You-Learn tutoring session from any AI agent — read its itemized running tab and close it for an attested invoice.

A Model Context Protocol server that exposes the three.ws Pay-As-You-Learn tutor ledger over stdio. Read a tutoring session's itemized tab — one line item per answered question, with per-item cost and a running total — and close the session to seal an attested invoice.

The tutor bills per answered question; this server's tools are free. Viewing the running tab and closing the session never charge the learner — a learner must never pay to see what they owe or to end the session. Sessions are addressed by an opaque sessionId, so no API key and no signer are required — point THREE_WS_BASE at a deployment and go.

Install

npm install @three-ws/tutor-mcp

Or run with npx (no install):

npx @three-ws/tutor-mcp

Quick start

Claude Code, one line:

claude mcp add tutor -- npx -y @three-ws/tutor-mcp

Claude Desktop / Cursor (claude_desktop_config.json or mcp.json):

"mcpServers": { "tutor": { "command": "npx", "args": ["-y", "@three-ws/tutor-mcp"] } } }

Inspect the surface with the MCP Inspector:

npx -y @modelcontextprotocol/inspector npx @three-ws/tutor-mcp

Tools

Tool	Type	What it does
`load_session`	read	Read a session's itemized running tab by `sessionId` — line items (question, level, tokens, cost), status, and running total.
`close_session`	write	Finalize a session and return its attested invoice — seals the ledger with a SHA-256 attestation and locks further billing.

Both tools are free and move no funds: the per-question answers are the paid action (handled elsewhere). load_session reads live data — the tab grows as questions are billed, so it is not idempotent. close_session mutates state (open → closed) but is itself idempotent: re-closing returns the same itemized total.

Input parameters

`load_session` — sessionId (required, ≤100 chars).

`close_session` — sessionId (required, ≤100 chars).

Example

// load_session

{ "sessionId": "learn-abc123" }

{ "ok": true, "sessionId": "learn-abc123", "status": "open", "createdAt": "2026-06-24T03:40:00.000Z", "questionCount": 2, "lineItems": [ { "n": 1, "question": "What is a Solana PDA?", "level": "intro", "outputTokens": 180, "costAtomics": 10000, "costUsd": "0.010000", "at": "2026-06-24T03:41:00.000Z" }, { "n": 2, "question": "How do CPIs work?", "level": "intro", "outputTokens": 220, "costAtomics": 10000, "costUsd": "0.010000", "at": "2026-06-24T03:42:00.000Z" } ], "totalAtomics": 20000, "totalUsd": "0.020000" }

// close_session

{ "sessionId": "learn-abc123" }

{ "ok": true, "sessionId": "learn-abc123", "createdAt": "2026-06-24T03:40:00.000Z", "closedAt": "2026-06-24T03:45:00.000Z", "questionCount": 2, "lineItems": [ /* same itemized line items */ ], "totalAtomics": 20000, "totalUsd": "0.020000", "attestation": "sha256:…" }

A sessionId with no stored history returns an empty open session (questionCount: 0) rather than an error — an honest "nothing billed yet", not a failure.

Requirements

Node.js >= 20.
Network access to https://three.ws (or your own THREE_WS_BASE).

Environment variables

Variable	Required	Default
`THREE_WS_BASE`	no	`https://three.ws`
`THREE_WS_TIMEOUT_MS`	no	`20000`

three.ws Tutor

What it does

Install

Install Node.js

Open the Claude desktop app’s settings file

Paste these settings and save the file

Quit Claude and open it again

Try it

What you can do instead

Install Node.js

Open Terminal

Paste this command and press Enter

Type /mcp in Claude Code

Try it

Install Node.js

Click this button to open Cursor

Open the AI chat in Cursor in Agent mode

Try it

Install Node.js

Click this button to open VS Code

Open the AI chat in VS Code in Agent mode

Try it

Installed on your computer

Values you fill in

At a glance

Which apps can use it

Related guides

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Discussion

User reviews

Compared with others in Games, sports, food & learningi

Common questions

Others in the same category

Honcho

ShipSwift

Pm Claude Skills

README from the maker

Install

Quick start

Tools

Input parameters

Example

Requirements

Environment variables

Links