nworks

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Full-featured MCP server for LINE WORKS (NAVER WORKS). CLI + MCP server — 26 tools covering messages, calendar, drive, mail, tasks, and boards.

Quickstart

npm install -g nworks
nworks login --user
nworks calendar list

AI Agents Actually Use It Like This

User: Show me today's schedule

Claude → nworks_calendar_list
  → 3 events: Standup (10:00), Lunch meeting (12:00), Code review (15:00)

User: Send a deploy complete message to the team channel

Claude → nworks_message_send
  { "channel": "C001", "text": "v1.2.0 deploy complete" }
  → Message sent

User: Check my unread emails and summarize them

Claude → nworks_mail_list (unread)
  → 3 unread emails
Claude → nworks_mail_read (each)
  → "3 unread: 1) Deploy approval from CTO, 2) Meeting invite for Friday, 3) Weekly report reminder"

Install

npx nworks             # Run directly
npm install -g nworks  # Global install

Login

# User OAuth (calendar, drive, mail, tasks, boards)
nworks login --user --scope "calendar calendar.read file file.read mail mail.read task task.read board board.read user.read"

# Bot messaging (Service Account)
nworks login

# Check auth status
nworks whoami

# Logout
nworks logout

nworks login --user only requires CLIENT_ID + CLIENT_SECRET. Values already set via environment variables or existing config won't be asked again.

Developer Console: To use User OAuth, register http://localhost:9876/callback as a Redirect URL in the Developer Console.

---

AI Agent Integration (MCP Server)

Works with Claude Desktop, Cursor, and other MCP-compatible clients.

Setup

Login first:

nworks login --user --scope "calendar calendar.read file file.read mail mail.read task task.read board board.read user.read"

Then add to your MCP config (~/.config/claude/claude_desktop_config.json):

{
  "mcpServers": {
    "nworks": {
      "command": "nworks",
      "args": ["mcp"]
    }
  }
}

One login enables all 26 tools. No extra env setup needed.

Without CLI login, an AI agent can call nworks_setup → nworks_login_user to authenticate via browser directly.

MCP Tools (26)

Tool	Description	Auth
Setup / Auth
nworks_setup	Configure API credentials (Client ID/Secret)	—
nworks_login_user	User OAuth browser login (all scopes included)	—
nworks_logout	Delete credentials and tokens	—
nworks_whoami	Check auth status	—
nworks_doctor	Diagnose connection (auth, tokens, API health)	—
Messages
nworks_message_send	Send message to user/channel	Service Account
nworks_message_members	List channel members	Service Account
nworks_directory_members	List organization members	Service Account
Calendar
nworks_calendar_list	List calendar events	User OAuth (calendar.read)
nworks_calendar_create	Create calendar event	User OAuth (calendar + calendar.read)
nworks_calendar_update	Update calendar event	User OAuth (calendar + calendar.read)
nworks_calendar_delete	Delete calendar event	User OAuth (calendar + calendar.read)
Drive
nworks_drive_list	List drive files/folders	User OAuth (file.read)
nworks_drive_upload	Upload file to drive	User OAuth (file)
nworks_drive_download	Download file (saves locally if >5MB)	User OAuth (file.read)
Mail
nworks_mail_send	Send mail	User OAuth (mail)
nworks_mail_list	List mailbox	User OAuth (mail.read)
nworks_mail_read	Read mail detail	User OAuth (mail.read)
Tasks
nworks_task_list	List tasks	User OAuth (task.read)
nworks_task_create	Create task	User OAuth (task + user.read)
nworks_task_update	Update/complete task	User OAuth (task + user.read)
nworks_task_delete	Delete task	User OAuth (task + user.read)
Boards
nworks_board_list	List boards	User OAuth (board.read)
nworks_board_posts	List board posts	User OAuth (board.read)
nworks_board_read	Read board post detail	User OAuth (board.read)
nworks_board_create	Create board post	User OAuth (board)

AI Agent Usage Example

User: Schedule a meeting tomorrow at 2pm and notify the team channel

Claude → nworks_calendar_create
  { "summary": "Meeting", "start": "2026-03-15T14:00:00", "end": "2026-03-15T15:00:00" }
  → Event created

Claude → nworks_message_send
  { "channel": "C001", "text": "Meeting scheduled tomorrow at 14:00" }
  → Message sent

User: Check my unread emails and summarize them

Claude → nworks_mail_list (unread)
  → 3 unread emails
Claude → nworks_mail_read (each)
  → "3 unread: 1) Deploy approval from CTO, 2) Meeting invite for Friday, 3) Weekly report reminder"

---

CLI Usage

All commands support --json for pipe/script/agent parsing. message send, mail send, and drive upload support --dry-run for testing without sending.

Messages (Bot API)

# Send text to user
nworks message send --to <userId> --text "Hello"

# Send text to channel
nworks message send --channel <channelId> --text "Announcement"

# Button message
nworks message send --to <userId> --type button --text "PR review request" \
  --actions '[{"type":"message","label":"Approve","postback":"approve"}]'

# List message
nworks message send --to <userId> --type list --text "Today's tasks" \
  --elements '[{"title":"Code review","subtitle":"PR #382"}]'

# List channel members
nworks message members --channel <channelId>

Directory

nworks directory members   # List organization members

Calendar (User OAuth)

# List today's events
nworks calendar list

# Specify date range
nworks calendar list --from "2026-03-14T00:00:00+09:00" --until "2026-03-14T23:59:59+09:00"

# Create event
nworks calendar create --title "Meeting" --start "2026-03-14T14:00+09:00" --end "2026-03-14T15:00+09:00"

# With location/description
nworks calendar create --title "Lunch" --start "2026-03-14T12:00+09:00" --end "2026-03-14T13:00+09:00" \
  --location "Conference Room" --description "Quarterly review"

# With attendees + notification
nworks calendar create --title "Team meeting" --start "2026-03-14T10:00+09:00" --end "2026-03-14T11:00+09:00" \
  --attendees "[email protected],[email protected]" --notify

# Update event
nworks calendar update --id <eventId> --title "Updated title"

# Delete event
nworks calendar delete --id <eventId>

Drive (User OAuth)

# List files/folders
nworks drive list

# Upload file
nworks drive upload --file ./report.pdf

# Upload to specific folder
nworks drive upload --file ./report.pdf --folder <folderId>

# Download file
nworks drive download --file-id <fileId>

# Specify output path/name
nworks drive download --file-id <fileId> --out ./downloads --name report.pdf

Mail (User OAuth)

# Send mail
nworks mail send --to "[email protected]" --subject "Subject" --body "Body"

# With CC/BCC
nworks mail send --to "[email protected]" --cc "[email protected]" --subject "Subject" --body "Body"

# List inbox
nworks mail list

# Unread only
nworks mail list --unread

# Read mail detail
nworks mail read --id <mailId>

Tasks (User OAuth)

# List tasks
nworks task list

# Incomplete only
nworks task list --status TODO

# Create task
nworks task create --title "Code review" --body "Review PR #382"

# With due date
nworks task create --title "Deploy" --due 2026-03-20

# Mark as done
nworks task update --id <taskId> --status done

# Delete task
nworks task delete --id <taskId>

Boards (User OAuth)

# List boards
nworks board list

# List posts
nworks board posts --board <boardId>

# Read post detail
nworks board read --board <boardId> --post <postId>

# Create post
nworks board create --board <boardId> --title "Announcement" --body "Content"

# With notification + disable comments
nworks board create --board <boardId> --title "Notice" --body "Content" --notify --no-comment

CI/CD Deploy Notification

# Notify team channel after deployment in GitHub Actions
nworks message send --channel $CHANNEL_ID --text "v${VERSION} deployed"

Team Automation Script

# Send daily standup reminder to all members
for userId in $(nworks directory members --json | jq -r '.users[].userId'); do
  nworks message send --to "$userId" --text "Standup at 10:00 today"
done

---

OAuth Scopes

Add the required scopes in the LINE WORKS Developer Console.

Scope	Purpose	Auth	Required For
bot	Bot messaging	Service Account	message send
bot.read	Bot channel/member read	Service Account	message members
calendar	Calendar write	User OAuth	calendar create/update/delete (requires calendar.read)
calendar.read	Calendar read	User OAuth	calendar list, also needed for calendar write
file	Drive read/write	User OAuth	drive list/upload/download
file.read	Drive read-only	User OAuth	drive list/download
mail	Mail read/write	User OAuth	mail send/list/read
mail.read	Mail read-only	User OAuth	mail list/read
task	Tasks read/write	User OAuth	task create/update/delete (requires user.read)
task.read	Tasks read-only	User OAuth	task list
user.read	User info read	Service Account / User OAuth	directory members, also needed for task write
board	Boards read/write	User OAuth	board list/posts/read/create
board.read	Boards read-only	User OAuth	board list/posts/read

Tip: After changing scopes, reissue your token:

nworks logout && nworks login --user --scope "..."

---

Environment Variables

Set environment variables to use nworks without nworks login (useful for CI/agents).

# Required
NWORKS_CLIENT_ID=
NWORKS_CLIENT_SECRET=

# Bot messaging only (not needed for User OAuth)
NWORKS_SERVICE_ACCOUNT=
NWORKS_PRIVATE_KEY_PATH=
NWORKS_BOT_ID=

# Optional
NWORKS_DOMAIN_ID=
NWORKS_SCOPE=              # default: bot bot.read user.read
NWORKS_VERBOSE=1           # debug logging

MCP Server with Environment Variables

Instead of nworks login, you can pass credentials directly:

{
  "mcpServers": {
    "nworks": {
      "command": "npx",
      "args": ["-y", "nworks", "mcp"],
      "env": {
        "NWORKS_CLIENT_ID": "<Client ID>",
        "NWORKS_CLIENT_SECRET": "<Client Secret>"
      }
    }
  }
}

Add NWORKS_SERVICE_ACCOUNT, NWORKS_PRIVATE_KEY_PATH, and NWORKS_BOT_ID for bot messaging.

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License

Apache-2.0