Bunpro MCP Server

Name: Bunpro MCP Server
Author: Alexxanddr

by Alexxanddrversion 0.3.0i★ –iRuns on your computer

Registry nameio.github.Alexxanddr/bunpro-mcp-server

Install

Overview

Description from the maker (original English)

Read-only access to Bunpro profile, reviews, study statistics, vocabulary, and search.

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
UsageiNot measured yet★ –

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: Search & AI memory
You need to fill in: BUNPRO_API_TOKEN

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).
You fill in yourself: BUNPRO_API_TOKEN

Values marked secret are keys to your account. Never share them or paste them into a chat.

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": {
    "bunpro": {
      "command": "npx",
      "args": [
        "-y",
        "bunpro-mcp-server"
      ],
      "env": {
        "BUNPRO_API_TOKEN": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add bunpro --env BUNPRO_API_TOKEN=your-value -- npx -y bunpro-mcp-server

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "bunpro": {
      "command": "npx",
      "args": [
        "-y",
        "bunpro-mcp-server"
      ],
      "env": {
        "BUNPRO_API_TOKEN": "your-value"
      }
    }
  }
}

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": {
    "bunpro": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "bunpro-mcp-server"
      ],
      "env": {
        "BUNPRO_API_TOKEN": "your-value"
      }
    }
  }
}

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.

Values you fill in

BUNPRO_API_TOKEN secret required env
Bunpro frontend bearer token without the Bearer prefix.

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 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account Alexxanddr, 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 Search & AI memoryi

More stars than 0% of the other 7283 servers in this category
Published to the registry more recently than 71% of the other 7283 servers in this category
Basic checks equal to or better than 100% of the other 7283 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 Bunpro MCP Server 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?

You need to fill in: BUNPRO_API_TOKEN

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 (0.3.0) reached the registry 16 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: Context7, Codebase Memory, Exa

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

Context7

by upstash

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

Computer or cloud★ 64,224MITUpdated yesterday

Install

Codebase Memory

by DeusData

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

Runs on your computer★ 48,148MITUpdated 21 days ago

Install

Exa

by exa-labs

Connect AI agents to Exa for web search, content fetching, and multi-step research.

Runs in the cloud★ 5,213MITUpdated last month

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.

Bunpro MCP

A read-only Model Context Protocol server that lets MCP clients work with your Bunpro profile, review queue, forecasts, SRS progress, vocabulary, learning content, and search.

[!WARNING]

This project uses Bunpro's unofficial, reverse-engineered frontend API. It may change without notice. This project is not affiliated with or endorsed by Bunpro.

What you can do

Ask for your profile, due count, review queue, or current quiz questions.
Inspect JLPT progress, SRS levels, forecasts, activity, and last-session accuracy.
Search Bunpro grammar and vocabulary with compact results.
Retrieve vocabulary details and notes, deck learning content, or topic replies.

The server exposes no account-changing, review-submission, or deletion tools.

Requirements

A Bunpro account and a current frontend bearer token.
Node.js 22 or newer when running from source or through npx.
An MCP client that supports local stdio servers.

Get your Bunpro token

Sign in to Bunpro in your browser.
Open the browser developer tools and select Network.
Select a request to https://api.bunpro.jp/api/frontend/....
Copy the Authorization request header value without the Bearer prefix.

Treat this token like a password. Do not commit it, paste it into issues, or expose it in screenshots.

Configure an MCP client

Install and launch the published package directly from your MCP client:

"mcpServers": { "bunpro": { "command": "npx", "args": ["-y", "bunpro-mcp-server"], "env": { "BUNPRO_API_TOKEN": "your-token" } } } }

For local development, build the repository and configure the client with an absolute path:

"mcpServers": { "bunpro": { "command": "node", "args": ["/absolute/path/to/bunpro-mcp-server/dist/index.js"], "env": { "BUNPRO_API_TOKEN": "your-token" } } } }

Restart the MCP client after changing its configuration or rebuilding the server.

Run locally

npm ci

npm run build BUNPRO_API_TOKEN='your-token' node dist/index.js

The last command starts an MCP stdio process and waits for protocol messages; it has no interactive prompt. Prefer the MCP client's environment configuration so the token does not enter shell history.

Example requests

“Show my Bunpro profile.”
“How many reviews are due?”
“Show my hourly review forecast.”
“Search Bunpro vocabulary for 日本語.”
“What was my last review-session accuracy?”

Available tools

Tool	Purpose
`get_user`	Get the current user profile.
`get_user_furigana`	Get furigana settings.
`get_due`	Get items currently due.
`get_queue`	Get the current review queue.
`get_quiz_questions`	Get the current read-only quiz queue.
`get_base_stats`	Get base study statistics.
`get_jlpt_progress`	Get mixed JLPT progress.
`get_daily_forecast`	Get the daily review forecast.
`get_hourly_forecast`	Get the hourly review forecast.
`get_srs_overview`	Get the SRS level overview.
`get_review_activity`	Get daily or hourly review activity.
`get_last_session`	Get last-session accuracy.
`get_weak_items`	Rank weak grammar and vocabulary using study count and accuracy.
`get_vocab`	Get vocabulary by slug or ID.
`get_vocab_notes`	Get notes for vocabulary.
`get_vocab_neighbors`	Get adjacent vocabulary in a deck.
`get_learning_content`	Get learning content for a deck.
`get_topic_replies`	Get replies for a Bunpro discussion topic.
`get_srs_level_details`	Get paginated SRS-level details.
`get_self_study_srs_details`	Get paginated self-study SRS details.
`get_ghost_srs_details`	Get ghost-review SRS details.
`search`	Search grammar and vocabulary with compact results.

Exact inputs, outputs, defaults, and errors are in MCP contracts.

Configuration

Variable	Required	Description
`BUNPRO_API_TOKEN`	Yes	Frontend bearer token without the `Bearer` prefix.
`BUNPRO_API_BASE_URL`	No	API override mainly for tests. It receives the token; use only a trusted URL.

Development

npm ci

npm run check

Authenticated live checks are separate:

cp .env.example .env

Edit .env locally, then:

npm run test:live

The live suite is read-only and .env is ignored. See Testing and Contributing.

Troubleshooting

`BUNPRO_API_TOKEN is required`: provide it in the MCP client configuration and restart the client.
`Bunpro API 401` or `403`: obtain a fresh token and omit the Bearer prefix.
Tool list did not change after rebuilding: restart the MCP client.
`404` or `5xx` from Bunpro: the unofficial endpoint may have changed; run live tests and open a sanitized issue.
No output when launched in a terminal: expected; stdio is waiting for an MCP host.

Architecture and limitations

The server is a local stdio package using the official TypeScript MCP SDK. Most outputs pass through Bunpro's JSON, so upstream shape changes are possible. It currently provides tools only—no resources, prompts, hosted HTTP endpoint, browser login, or OAuth flow.

Read Architecture, Technical security, and the community API reference.

Releases and distribution

The npm package is published as bunpro-mcp-server and can be launched with npx -y bunpro-mcp-server. Release metadata is also prepared for the official MCP Registry through server.json.

Releases use Semantic Versioning and GitHub Releases. The release tag must match v ; GitHub Actions then tests, publishes through tokenless npm Trusted Publishing, and registers the same version in the official MCP Registry. See Publishing.

A future hosted streamable-HTTP server could reduce installation friction, but it first needs secure per-user authentication and token storage. Local stdio keeps the current bearer token on the user's machine.

Security, contributions, and license

Read SECURITY.md before reporting a vulnerability. Contributions follow CONTRIBUTING.md. Never include credentials or personal Bunpro responses in a report.

Licensed under the existing MIT License. Downstream users must also comply with Bunpro's applicable terms and policies.

Bunpro MCP Server

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

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 Search & AI memoryi

Common questions

Alternatives

Context7

Codebase Memory

Exa

README from the maker

Bunpro MCP

What you can do

Requirements

Get your Bunpro token

Configure an MCP client

Run locally

Example requests

Available tools

Configuration

Development

Edit .env locally, then:

Troubleshooting

Architecture and limitations

Releases and distribution

Security, contributions, and license