PlainHub

Name: PlainHub
Author: ricrio-inc

by ricrio-incversion 1.8.0i★ –iRuns on your computer

Registry nameio.github.ricrio-inc/plainhub

Install

Overview

Description from the maker (original English)

Open files and diffs from your agent in PlainHub, and keep a shared ledger in your own GitHub repo.

PopNx MCP’s three pillars

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

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiEarly↓ 837/wk · ★ –

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: Runs on your computer
Transport: stdio
Category: Accounting, finance & tax

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.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "plainhub": {
      "command": "npx",
      "args": [
        "-y",
        "plainhub",
        "mcp"
      ]
    }
  }
}

Run this in your terminal

claude mcp add plainhub -- npx -y plainhub mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "plainhub": {
      "command": "npx",
      "args": [
        "-y",
        "plainhub",
        "mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "plainhub": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "plainhub",
        "mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

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

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 8, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account ricrio-inc, 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 Accounting, finance & taxi

More stars than 0% of the other 2933 servers in this category
Published to the registry more recently than 91% of the other 2933 servers in this category
Basic checks equal to or better than 100% of the other 2933 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 PlainHub 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 (1.8.0) reached the registry 2 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: Finance Toolkit, SolidInvoice, Korea Tax Calculator

Alternatives

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

Finance Toolkit

500+ transparent financial methods calculated from raw statements, not third-party endpoints.

by JerBoumaWidely used↓ 15.5K/wk★ 5.5KUpdated yesterday

Computer or cloud

Install

SolidInvoice

Create and send invoices and quotes, manage clients, and track payments in SolidInvoice.

by SolidInvoiceGrowing★ 981Updated 9 days ago

Runs in the cloud✓ solidinvoice.co

Install

Korea Tax Calculator

Korean tax calculation and tax-audit judgment MCP: 96 tools with statutory citations.

by UpstageAIGrowing↓ 3.2K/wk★ 97Updated 2 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.

PlainHub

A GitHub editor, wired to Claude Code

Open, write and save Markdown and plain-text files in your own GitHub repos from a browser or phone; every save is a commit. Connect the Claude Code on your PC, talk to it by voice, and approve its proposals from anywhere. Your files stay in your GitHub.

Website · ▶ 30-second intro (YouTube) · Documentation · 日本語ドキュメント · Why I built it

Three ways to use it

1. Edit — open, write, save

Open a file in your GitHub repositories, write, and save — no Git knowledge required. Every save is a commit in your own repository. Ask the AI about the file in front of you, and review each proposed edit before it is applied. → User Guide

2. Ledger — progress and decision cards in your repo

Your agents write their messages and decision cards as Markdown files in .agents/ in your own repository. Send it to GitHub with plainhub ledger sync . and open the repository in PlainHub. If you can write to it, decision cards waiting for you show Approve and Decline buttons, on your PC or your phone. Starting a ledger needs only Git and Node.js 18 or later. → How to use the ledger

3. Your agent — connect your own Claude Code

Ask in the PlainHub AI panel, and Claude Code on your own PC answers — from the same PC or from your phone. No API key needed: it runs signed in with your own Claude account. → Your agent

What's inside

The cli/ folder is the source of the npm package plainhub: the CLI, the MCP server, Your agent and the ledger. It holds the same files as the published version on npm.

The ledger works without PlainHub. Your AI agents write messages and decision cards as Markdown files in .agents/ of your own repository, with the MCP tools plainhub_ledger_init, plainhub_post, plainhub_decide, plainhub_ledger_read and plainhub_ledger_sync (or the same plainhub commands), and send them with Git. Nothing goes through PlainHub's servers or screens, and there is no other service to depend on. → Use without PlainHub

A person decides. Through the MCP tools, an agent can't choose the owner role, so approving a card is left to a person. PlainHub is the easiest place to do that: open the repository on your phone and press Approve.

File in `cli/src/`	What it does
`cli.js`	The `plainhub` command: open files, sign in, the ledger commands, `agent` and `doctor`
`mcp-server.js`	The MCP server (`plainhub-mcp`): registers the tools for your AI IDE
`tool-docs.js`	The description of each MCP tool that your AI reads
`ledger.js`	The ledger: its rules, checks and writing (`.agents/`)
`core.js`	Building PlainHub links, opening the browser, keeping your token
`cli-options.js`	The options of `plainhub open` (also used for the docs)
`agent.js`	Your agent on this PC: connects your Claude Code to the AI panel (local only)
`mailbox.js`	Your agent from your phone: questions and answers go through a private repository of yours
`agent-core.js`	The shared core of Your agent: one question in, a stream of events out
`agent-mcp.js`	The PlainHub tools that Your agent can use in the panel
`agent-spec.js`	Fixed values shared by `agent.js` and `mailbox.js`
`doctor.js`	`plainhub doctor`: checks this PC before you start Your agent

Some comments are in Japanese.

Why PlainHub

GitHub-native — Your files are saved only in your own GitHub repository. PlainHub doesn't store them.
File contents never pass through PlainHub's servers — Reading and saving go directly between your browser and the GitHub API. Sign-in uses a small server step — see the privacy policy.
BYOK (Bring Your Own Key) — Use your own AI API keys (e.g., Anthropic Claude). Keys stay in your browser, never sent to PlainHub servers.
AI for idea development — Brainstorm, write, and edit alongside an AI assistant. Voice input and TTS read-aloud supported.
Frontend for GitHub — Like github.dev, but for non-engineers. A notepad with version control built in.

Features

Edit from your phone

Open a note on your phone, fix a line, and it is saved — as a commit in your own repository.

Editor

Markdown 3-mode editing — Code / Visual (WYSIWYG) / Preview
Syntax highlighting — Markdown, JSON, YAML, and more
Undo / Redo — Full edit history
Line numbers, auto-indent, line wrapping — Configurable
Whitespace visualization — Toggle invisible characters
Keyboard shortcuts — VS Code-style shortcuts (Ctrl+S, Ctrl+Z, etc.)

File Management

Create / rename / duplicate / delete files and folders
File history — View past versions with diff
Sync & conflict resolution — Real-time sync with GitHub
Image paste — Paste images directly, auto-upload to repo
Cross-repo search — Search across all your repositories

Integration

CLI — plainhub open -r from your terminal
MCP Server — Control from AI IDE (Claude Code, Cursor, VS Code)
Deep linking — Share URLs with theme, font size, line number settings
PWA — Install as native app on desktop and mobile

Design

Dark / Light theme — Automatic or manual
Mobile responsive — Full-featured on phone and tablet

Quick Start

Web

Visit [plainhub.dev](https://plainhub.dev) and sign in with GitHub.

CLI

npm install -g plainhub

plainhub auth --from-gh plainhub open README.md -r owner/repo

MCP Server (AI IDE)

npm install -g plainhub

claude mcp add plainhub -- plainhub-mcp

Then say: *"Open the README in owner/repo on PlainHub"*

Documentation

[User Guide](docs/USER_GUIDE.md) — Editor features and shortcuts
[Features](docs/FEATURES.md) — Key features, data ownership, enterprise
[Use Cases](docs/USE_CASES.md) — When and how to use PlainHub
[CLI Reference](docs/CLI.md) — Terminal commands and options
[MCP Server](docs/MCP_SERVER.md) — AI IDE integration
[Your agent](docs/YOUR_AGENT.md) — Connect your own Claude Code to the AI panel
[FAQ](docs/FAQ.md) — Troubleshooting and common questions
[日本語ドキュメント](docs/ja/) — Japanese documentation

Ask / Report

Ask a question or report a problem: open an issue — no question is too small. We usually reply within 2 business days.

❓ How do I…? — ask how to do something
🐞 Bug — something doesn't work as expected
💡 Idea — suggest an improvement

Replies may be drafted with the help of an AI assistant and are checked by the PlainHub team. Please don't post personal information, tokens, or private file contents — this repository is public.

License

The code in cli/ (the npm package plainhub) is released under the MIT License.

The documents in this repository are generated from another place, so please don't edit them here. If something needs fixing, let us know with an issue.

PlainHub

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

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

Compared with others in Accounting, finance & taxi

Common questions

Alternatives

Finance Toolkit

SolidInvoice

Korea Tax Calculator

README from the maker

PlainHub

Three ways to use it

1. Edit — open, write, save

2. Ledger — progress and decision cards in your repo

3. Your agent — connect your own Claude Code

What's inside

Why PlainHub

Features

Edit from your phone

Editor

File Management

Integration

Design

Quick Start

Web

CLI

MCP Server (AI IDE)

Documentation

Ask / Report

Links

License