Centrux Help Guide

Getting started

The landing page moves from a home workspace through tools, connected knowledge (Space), AI and Wiki, and a hands-on demo. Scroll down to advance through the scenes and up to return. The Skip to the demo link appears when reached with a keyboard; the opening scene also has a Try it out link.

The 3D scenes are product illustrations with sample data. As in the tool-dragging scene, on desktop you can drag a widget from the Add tools drawer onto the canvas. The actual Space view is available on desktop. After connecting through MCP, AI tools save, read or update wiki pages at your request; entire conversations are not saved automatically.

Each scene’s pause icon stops automatic animation while keeping scroll navigation available. Reduced-motion settings, data-saving mode or a 3D loading failure show still images and readable content. Mobile and short screens use simpler layouts; all explanations and the demo remain available by scrolling vertically.

Try the sample desk in the final Now, make it yours. section. It keeps the same area when switching between My day / Study / Research. In Study, use Add one to increase the goal and the adjacent circular-arrow Reset goal button to reset it. Explore the purpose and mood, then choose Sign up for free beside or below the demo to reach registration. Use Try without signing up to explore the app without an account. Existing users can choose Sign in in the header. After signing up, review or change your selected purpose and mood; sample content is not saved or copied into your account.

A first desk for your needs

Sign up with Google or email/password, then choose My day / Study / Research and name your space. My day and Study start with three tools; Research starts with Links and Notes. You can also start empty or set up later.

Use + in the sidebar to add a project. Free includes one owned project; Pro allows unlimited owned projects. If you already have a space, you can keep using it.

Your desk and scenes

The desktop top tabs are ordered Canvas → Notes → Calendar → Kanban → DB. Choose the view you need within the same project.

Arrange and resize tools on the canvas. Open Canvas tools at the top to find All / Morning / Focus / Review, Customize and Add tools. Move the pointer to the top or press the handle. With a keyboard, Tab to the handle and press Enter.

• Add tools: A tool drawer opens on the right side of the canvas. Each card shows what the widget looks like. Drag a card where you want it, or select it to add it to an open spot on screen. If the view is full, it goes to the next open spot below and the canvas moves to it. The drawer stays open while you place several tools; close it with X or Esc. Search by name or browse purpose groups. Preview a starter set before adding it to an existing space; matching tools are reused.
• Move around: Scroll with two fingers on a trackpad or with a mouse wheel. Hold Shift while turning the wheel to move sideways. You can also drag an empty spot, hold Space and drag (even over a widget), or drag with the middle mouse button. Select an empty spot and use the arrow keys (add Shift for bigger steps). When a list inside a widget can scroll further, the widget scrolls first. Space does not move the canvas while you type in a field.
• Zoom: Pinch on a trackpad, or hold ⌘ (Ctrl on Windows) and turn the mouse wheel, to zoom between 1% and 200% around the pointer. The zoom slider at the bottom left works too. 100% returns to actual size around the center of the screen. Fit to screen fits every widget on one screen once.
• Minimap and returning: The minimap at the bottom right shows where widgets are and the area on screen. Select a spot on it to go there, or drag the area box. Collapsing it is remembered in this browser. When no widget is on screen, a Back to your tools button appears at the bottom.
• Saved view: Your position and zoom are saved per account and project, so they carry over to other computers and after reloading. The view is personal: it never changes shared widget positions or sizes, and Viewers can use it too. From a scene, select All first.
• Scenes: Keep the tools you need for Morning, Focus or Review together. The X on a scene card removes it only from that scene. Move, resize or delete the original tool in the full canvas.
• Customize: Save your mood, background, spacing, tool aliases, colors and photo frames. Each scene can have its own appearance.

Tasks, calendar and repeats

Task table and Kanban

Edit names, status, priority, dates and assignees in the task table, and add custom columns as needed. In Kanban, move cards between status columns. Open task details for notes, checklists and conversations.

Times and date ranges

Select the due-date cell in the task table to add a time and an end date along with the date. You can also change them in the calendar’s task dialog and in task details on mobile. Clearing the date clears both, and moving the start date moves the end date by the same number of days.

If a task name includes a time, such as “Dentist 3pm” or “4:30 call”, a suggestion button appears next to the name. Select it to move the time into the date field and take it out of the name, or use × to dismiss it. Without AM or PM, 1–6 o’clock reads as afternoon and 7–11 as morning. A task without a date gets today’s date along with the time.

Calendar

Select a date to view or add tasks. Browse due dates, custom date columns, repeating plans and completion history. Group or expand repeats, and switch between Incomplete and All tasks. Incomplete shows actual outstanding occurrences; All tasks also includes future repeating plans. Tasks with a time show it before the name, and each day lists untimed tasks first, then the rest in time order. Tasks with an end date appear on every day of their range. Repeating tasks follow their schedule instead of a range.

Repeats support daily, weekdays, weekly and monthly schedules. Editing a repeating task’s date or rule, or deleting it, applies to the whole task. Complete or undo today’s occurrence; previous completion history remains.

Work inbox

Open Work inbox above the project list in the left sidebar. On mobile, use its button at the top of Tasks. Add a compact canvas widget through Add tools → Plan your day → Work inbox; Open inbox opens the same personal inbox in a larger view.

1. Choose projects: On first use, up to five projects are suggested, with the current project first. Review their names and select up to ten at a time. Applying a selection saves it with your assignment and date filters to your own account. This view limit is separate from your plan’s project allowance.
2. Assignment: ‘Owned or assigned to me’ includes all tasks in projects you own and your assigned tasks in shared projects. Work you delegated in your own projects is included. Switch to ‘Assigned to me’ or ‘All selected projects’ as needed.
3. Dates: Filter by All, Overdue, Today, This week or No due date using the default task deadline. Today uses your device’s local date, and weeks run Monday–Sunday. My day picks and custom date columns do not count as the deadline.
4. Open the original: Select a row to move to its project and open task details. Close details to return to the same inbox filters and list position. Complete tasks and change dates in details; editing shared work changes the shared original. Viewers have read-only access.

Query status and recurring review

Counts and ordering describe Loaded items. Larger projects show More to check → Load more; later pages may contain earlier deadlines. Partial results are not a complete search. If this view contains too many items, select fewer projects to continue. Refresh rechecks the page range you already viewed.

A completed recurring task that may need to advance is shown separately as Review next recurrence. It does not count as open or overdue work, and reading the inbox never changes its original status. Open details to review it. Ordinary completed tasks are omitted.

Use Refresh or each project’s Retry action and check the query time. Offline, reconnect before viewing results. Review project selection after access is removed or changed. This inbox is separate from collaboration notifications and does not replace your personal My day picks.

Tool guide

Focus and weekly review

1. Select a task using the focus action in My day or the Focus timer, then start.
2. Pause and resume as needed. When switching to another task, choose whether to save the current session, reset it or cancel the switch.
3. When finished, add a personal note if needed and save the session yourself.
4. Change the week or open a saved week in Weekly review to see completed work and personal focus history. Use Save to keep what went well and what you want to change.

My day, Focus timer and mobile Focus share one personal timer per project. Its state continues across refreshes and devices. Reaching the end of the timer does not automatically complete the task or save a focus record.

Notes, saving and recovery

Project notes and the Notes widget

Use the project Notes view for documents with headings, lists, checklists, code, images and attachments. The canvas Notes widget provides plain-text editing for a free note or a selected task note. Editing existing rich content in the widget saves it as plain text; use its original editor when you need to preserve formatting.

Autosave and conflicts

Notes save automatically. The widget’s corner spinner and check indicate save status. If saving fails, you go offline or another device edits the same content, follow the recovery prompt to compare your draft with the latest content and recover or retry. Copy any needed text before leaving an unresolved edit.

History and trash

Open a project note’s history to compare and restore earlier content. History keeps up to 20 versions from the last 30 days, within a combined 5MiB title-and-body limit. Not every autosave creates a version. Deleted project notes can be restored from Trash for 30 days; only the owner can permanently delete them.

History and Trash apply to project notes. Restoring a body does not recover attachment files that were explicitly deleted. Deleting a publicly shared note also revokes its existing public link.

Wiki and Knowledge Space

Wiki

Choose your personal wiki or a project’s shared wiki to organize knowledge in Markdown. Categories are Concept, Decision, How-to, Reference, Fact and Troubleshoot. Connect resources as references, evidence, follow-ups or replacements to trace decisions through to execution.

Look around in Space

Space shows where your tasks, notes and wiki pages are on one map. At the top, choose a Scope (all projects and your personal wiki, your personal wiki only, or one project), search titles and content, and select the Tasks, Notes and Wiki chips to show or hide each type. Each chip shows how many items of that type there are. Searching opens a results list at the top left of the map; use X to clear the search.

Select a point on the map to keep that item and the items directly connected to it bright and open it on the right. Read its title, project, due date and priority, its content and its Connected items (pages it refers to, task order and connections you made), or use Open original to go to it. Select an empty spot or press Esc to close it. Selecting a project lists its items. For an item with connections, Show only around this item gathers just its connected items; there you can choose directly connected or one step further, go to the previous or next item, find a way to another item, and see what to look at next. Back to the full map, an empty spot or Esc returns with the item still open.

If you can edit, expand Manage connections at the bottom of the item panel to connect items in the same scope as references, evidence, follow-ups or replacements, or to remove a connection. While nothing is connected yet, a short note appears below the map; closing it with X keeps it closed in this browser.

Move the map with two fingers or the mouse wheel, and pinch or hold ⌘ (Ctrl on Windows) and turn the wheel to zoom around the pointer. You can also drag an empty spot, and use the controls at the bottom left to zoom or fit the map.

More at the top right holds: list all items (also a keyboard way to choose items), show completed tasks, group daily and weekly records (on by default), suggest connections from shared tags, pause motion, checks (items with no connections, important tasks without sources) and saved views. Run checks after choosing one project or your personal wiki. Saved views stay on this device for this account and remember only the settings and the chosen item. The slowly moving points and stars are decorative and follow your device’s reduced motion setting.

The all-projects scope includes project tasks and notes plus your personal wiki. Choose a project as the scope to see its shared wiki.

Sharing, conversations and notifications

Invitations and roles

Invite people by email from the project’s sharing menu and choose Editor or Viewer. Accept using a verified account matching the invited email. Editors can change shared content. Viewers can read it and still use their own scenes, focus records and reflections.

Task conversations and team overview

Review task information, notes, and checklists, and leave comments and replies in task details. Properties use a two-column, two-row layout: Status and Priority on the first row, and Due date and Recurring on the second. On wide screens, conversations stay in the right panel while task info and comments scroll independently. Comments appear newest first, and the comment box stays at the bottom of the panel. On short screens, scroll the conversation panel to reach all controls. When reading older comments, use Back to latest to return to the latest page. The current task name appears in the header. On mobile or narrow screens, switch with Task info / Conversation at the top. Switching within the same task preserves your unsent draft. Opening a comment notification shows its conversation directly. Type @ in the comment box to find current project members by name or email. Select with ↑↓ and Enter, or tap a member. Selection adds @name to the text and a mention recipient. Deleting the selected mention text or using its × removes the recipient. Typing a name without selecting it does not notify anyone; mentions are delivered after saving, subject to existing notification settings. You can select up to 20 members. Viewers can read conversations only. Online indicators reflect recent presence, not proof that someone is actively working.

Team overview

Use the people SVG icon, Team overview, in the top bar or at the top of Tasks on mobile. Cards show the current project’s members and their unfinished assigned tasks, including each member’s name, role, unfinished count and in-progress count. Preview three tasks per member, ordered by earliest due date. Use the downward arrow to expand longer lists, then the left and right arrows to browse ten tasks per page. Select a task to open its details. Shared assignments appear under each assignee; unassigned tasks and tasks assigned only to former members are excluded. Check Calendar for individual recurring dates. Change assignees and read conversations in task details, and find mentions in the collaboration inbox. Shared members can use the exit icon below the cards to review and confirm leaving the project.

Collaboration inbox

Mentions, task assignments, replies to your comments and changes to items you watch notify you by default. You start watching a task when you create it, are assigned to it or comment on it, and a note when you create it or edit its text. Use the eye icon in task details or at the top of a note to watch or stop watching; an item you stopped watching is not watched again automatically. Changes to the same item share one notification that keeps its people, count and changed values up to date until you read it. Mark individual notifications or the current page as read, delete notifications, and adjust account preferences, project muting and all-changes notifications in Settings. The badge covers recent notifications, not a lifetime total of unread items.

Project news

Project news, at the top of a shared project (on mobile, at the top of Tasks), gathers the tasks and notes other people changed since you last checked, one row per item. Status, dates, assignees, checklists and columns show their new values, note text shows how much it grew or shrank, and selecting a row opens the item. Opening the panel does not clear it; Mark all read does, and the same point applies on your other devices. The first time, it shows the last 7 days, and one person's edits within 10 minutes are grouped together.

Leaving a project or losing access prevents you from opening its shared resources. An owner’s project deletion affects all members; review the explanation shown before deleting.

Connect AI through MCP

Use an MCP-compatible AI client to manage tasks, notes and wiki pages in a conversation. Open Settings → AI connections · API keys and generate a connection key. The full key is displayed only once.

Let a coding AI set up the connection

1. Select Claude Code, Codex or Gemini CLI.
2. To pass the key to the AI, explicitly select “Include the API key I just generated.” The default prompt contains no key and guides local credential setup. Including a key gives the AI a credential that can read and change your account’s wiki and tasks; use a trusted private AI session.
3. Click “Copy setup prompt” and paste it into that coding AI. It needs access to local configuration and may require an MCP reconnect or restart.
4. Check that the AI actually reads your project list. An empty list is successful; configuration registration alone is not a verified connection.

This method is for local coding AI clients. ChatGPT and Claude web require separate connector registration in their web settings; the prompt does not create a web connector automatically.

Manual setup

1. Open your MCP client’s remote-server settings.
2. Set the server URL to https://centrux.kr/api/mcp.
3. Set the authentication header to Authorization: Bearer YOUR_API_KEY, replacing YOUR_API_KEY with your actual key.

Header configuration depends on the client. Use this endpoint and authentication header instead of the older key-in-URL format. If a key is exposed, revoke it in Settings and generate a replacement.

Available tools

Projects shared with you can be read (Viewer) or changed (Editor) through AI as well. Dates and times follow your local calendar, and times and ranges are saved in the task’s time and end date fields rather than its name. If the AI does not send today’s date, “today” follows the time zone of the device you last opened Centrux on (Korea time if none is known).

Try asking

• “Add a team dinner at 6 pm today.”
• “What’s on my schedule this week, day by day?”
• “Show tasks due today and work that is blocked.”
• “Add a design review task and checklist to my Research project.”
• “Search the wiki first, then update the existing page with this decision.”
• “Connect this note as evidence for the decision and create a follow-up task.”

Using mobile

Use the five bottom tabs: Tasks / Notes / Wiki / Focus / Settings.

• Tasks: Lists, Kanban, quick add and task details. Everyday tools provide My day and your personal scenes.
• Notes: Edit project notes and open history or Trash. Switch between Notes and Links to access the link library.
• Wiki: Search, filter by category, read and edit pages.
• Focus: Use the same personal timer and records as desktop.
• Settings: Profile, appearance, language, notifications, plan, export and help.

Use your browser’s Add to Home Screen or Install App option to install Centrux. For actions that save to the server, check the connection and save feedback.

Settings and plans

Choose monthly or yearly Pro

In Settings, select Choose Pro — monthly or yearly, then choose a billing interval. Base prices are USD 8.99/month or USD 89.90/year. In Korea, prices are KRW 9,900/month or KRW 99,000/year, VAT included. Yearly Pro is billed in full upfront and renews each year. The Korean equivalent of KRW 8,250/month is a comparison, not monthly installments; it saves KRW 19,800 against twelve monthly payments.

Monthly and yearly Pro offer the same features. Widgets, wiki and MCP connections are included in Free. The final amount and taxes depend on checkout country; US sales tax may apply. Check the amount in Paddle before paying. Changing the billing interval clears the consent checkbox so you can review the new terms.

Canceling stops the next renewal and keeps Pro active until the end of the paid period. A refund request is separate; see the Refund Policy. Switching an existing monthly Pro subscription to yearly is not currently available directly in the app. Contact support if you need to change it.

Manage your name, avatar, system/light/dark mode, desk appearance, language and notifications in Settings. Change the display language in Settings → Language. On a first visit, Korean IP addresses default to Korean; all other locations and unknown countries default to English. Your browser language is not used to infer your country. Your explicit choice is saved in this browser and takes priority over your location and the /ko/ or /en/ URL. Choose it again on other devices or browsers; when browser storage is blocked, the choice lasts only in the current tab. Spanish, Chinese and Japanese can also be selected, with English fallback where translations are unavailable. Help is available in Korean and English. Project names, tasks and notes you write are not automatically translated. Export project data as PDF, XLSX, CSV or JSON.

Check the pricing page and app Settings for current prices, file storage limits and subscription status. A JSON export does not contain attachment files themselves or every earlier version. Download any needed past note content separately from History.

Common questions

Where is the quick inbox?

The quick inbox tool was retired because it overlapped with Notes, Sticky wall, Links and quick task creation. Use those tools for new captures. Existing private inbox data and converted tasks, notes and links were not deleted. The collaboration inbox for mentions and assignments remains available.

Is a routine stamp private?

A stamp completes or undoes today’s occurrence of a repeating task. In a shared project, members see the same task status and completion history. Keep personal habits in a personal project. Weekday routines show weekends as rest days and skip them when counting streaks.

Why are my changes not saved?

Check your connection and editing permissions, then follow the retry or draft-recovery prompt. If another device changed the content, compare the latest version with your draft. Copy any unsaved content before a required refresh.

Contact and support

After signing in, use “Contact support / My tickets” in Settings or the sidebar to submit a ticket and read replies. A verified email is required for new tickets and replies. Enter a category, subject and message; diagnostics are optional and previewed before submission. You can mark a ticket resolved. Start a new ticket for a closed conversation. This is not live chat or an automatic email notification service.

Use “Replay getting started” in Settings to practice creating a task, focusing and saving a record. Optional usage analytics can be allowed or withdrawn in Settings or the public footer; all features work without it.

Email: teletobi_00@naver.com

Include the screen, device, steps and error message when asking for help. Do not send passwords or API keys.

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