io.github.cvrt-jh/clickup-mcp

clickup-mcp

Lightweight ClickUp MCP server focused on task management. 39 tools with token-optimized responses - API responses automatically slimmed from thousands of characters to essentials.

Why This Server?

ClickUp's API returns extremely verbose JSON. This server strips it down:

Response	Before	After	Reduction
clickup_whoami	~3,500 chars	~160 chars	95%
clickup_create_comment	~1,500 chars	~38 chars	97%

Less tokens = faster responses, lower costs, more context for your AI.

Installation

npm install -g @cavort-it-systems/clickup-mcp

Or run directly:

npx @cavort-it-systems/clickup-mcp

Configuration

Claude Code CLI

claude mcp add clickup -e CLICKUP_API_TOKEN=your-token -- npx @cavort-it-systems/clickup-mcp

Claude Desktop / Manual

Add to your MCP config (~/.claude.json or Claude Desktop settings):

{
  "mcpServers": {
    "clickup": {
      "command": "npx",
      "args": ["@cavort-it-systems/clickup-mcp"],
      "env": {
        "CLICKUP_API_TOKEN": "your-token"
      }
    }
  }
}

From Source

git clone https://github.com/cvrt-jh/clickup-mcp.git
cd clickup-mcp
npm install && npm run build

Then configure with the built path:

claude mcp add clickup -e CLICKUP_API_TOKEN=your-token -- node /path/to/clickup-mcp/build/index.js

Get Your API Token

1. Go to ClickUp Settings > Apps
2. Generate a Personal API Token
3. Set as CLICKUP_API_TOKEN

Response Slimming

All responses are automatically trimmed to save tokens. The ClickUp API returns extremely verbose JSON - this server strips it down to what matters.

clickup_whoami - from ~3,500 chars to ~160:

// Before (ClickUp API raw)
{"user":{"id":12345678,"username":"Jane Doe","email":"jane@example.com","color":"#0388d1",
"profilePicture":"https://attachments.clickup.com/...","initials":"JD",
"week_start_day":1,"global_font_support":true,"timezone":"Europe/Berlin"},
"teams":{"teams":[{"id":"99999999","name":"My Workspace","color":"#40BC86",
"avatar":"https://attachments2.clickup.com/...?Expires=...&Key-Pair-Id=...&Signature=...",
"members":[{"user":{"id":11111111,"username":"Bob Smith","email":"bob@example.com",
"color":"#aa2fff","profilePicture":null,"initials":"BS","role":4,"role_subtype":2,
"role_key":"guest","custom_role":null,"last_active":"...","date_joined":"...",
"date_invited":"..."},"invited_by":{"id":22222222,...},
"can_see_time_spent":true,...}, ...]}]}}

// After (slimmed)
{"id":12345678,"username":"Jane Doe","email":"jane@example.com",
"timezone":"Europe/Berlin","workspaces":[{"id":"99999999",
"name":"My Workspace","member_count":4}]}

clickup_create_comment - from ~1,500 chars to 38:

// Before
{"id":90150191300876,"hist_id":"...","date":1770053982842,
"version":{"object_type":"comment","object_id":"...","workspace_id":99999999,
"operation":"c","data":{"context":{"root_parent_type":1,"is_chat":false,
"audit_context":{"userid":12345678,"current_time":...,"route":"*"},...},...},...}}

// After
{"id":90150191300876,"date":1770053982842}

What gets stripped:

Field	Where	Why
features{}	spaces	~50 lines of boolean flags per space
sharing{}, permission_level	tasks	Internal access config, not useful
watchers[]	tasks	Usually same as assignees
Full user objects	everywhere	Reduced to {id, username, email}
profilePicture, initials, color	users	Visual metadata, not useful for LLMs
version{} blobs	comment/reply creates	Internal versioning data
invited_by, profileInfo	members	Invitation metadata
Pretty-print JSON	all responses	Compact single-line output
Empty arrays	tasks	checklists, dependencies, custom_fields omitted when empty

Tools (37)

Navigation (7)

• clickup_whoami - Current user + workspaces
• clickup_get_spaces - Spaces in workspace
• clickup_get_folders - Folders in space
• clickup_get_lists - Lists in folder or space
• clickup_get_list - Single list details
• clickup_create_list - Create list in folder or space
• clickup_delete_list - Delete a list (permanent)

Task CRUD (5)

• clickup_get_task - Get task by ID
• clickup_create_task - Create task with all fields
• clickup_update_task - Update any task field
• clickup_get_tasks - List tasks in a list
• clickup_search_tasks - Search tasks across workspace

Custom Fields (1)

• clickup_set_custom_field - Set custom field value

Tags (6)

• clickup_get_space_tags - List space tags
• clickup_create_space_tag - Create tag
• clickup_edit_space_tag - Edit tag
• clickup_delete_space_tag - Delete tag
• clickup_add_tag_to_task - Tag a task
• clickup_remove_tag_from_task - Untag a task

Checklists (6)

• clickup_create_checklist - Create checklist
• clickup_edit_checklist - Edit checklist
• clickup_delete_checklist - Delete checklist
• clickup_create_checklist_item - Add item
• clickup_edit_checklist_item - Edit item
• clickup_delete_checklist_item - Delete item

Dependencies (4)

• clickup_add_dependency - Add dependency
• clickup_delete_dependency - Remove dependency
• clickup_add_task_link - Link tasks
• clickup_delete_task_link - Unlink tasks

Comments (5)

• clickup_create_comment - Add comment
• clickup_get_comments - Get comments
• clickup_update_comment - Edit/resolve comment
• clickup_create_reply - Threaded reply
• clickup_get_replies - Get replies

Delete Task (1)

• clickup_delete_task - Delete a task

Multi-List Membership (2)

• clickup_add_task_to_list - Add a task to an additional list (multi-homing)
• clickup_remove_task_from_list - Remove a task from an additional list

These do not move a task. The ClickUp v2 API has no move-between-lists endpoint. Verified against the live API 2026-08-12: POST /list/{list}/task/{task} adds a secondary location and leaves the home list unchanged, while a list_id in PUT /task/{id} returns HTTP 200 and is silently ignored. To genuinely move a task and keep its custom ID and history, use the ClickUp web UI (right-click -> Move). Multi-list membership also requires the paid Tasks-in-Multiple-Lists feature.

Workspace Members (2)

• clickup_get_workspace_members - All workspace members
• clickup_get_list_members - List-specific members

Architecture

src/
  index.ts          # Entry: McpServer + StdioServerTransport
  client.ts         # ClickUp API v2 fetch wrapper
  types.ts          # Shared Zod schemas + jsonResult helper
  slim.ts           # Response slimming transformers
  tools/
    navigation.ts   # 7 tools
    tasks.ts        # 9 tools (CRUD + custom fields + delete + multi-list)
    tags.ts         # 6 tools
    checklists.ts   # 6 tools
    dependencies.ts # 4 tools
    comments.ts     # 5 tools
    members.ts      # 2 tools

License

MIT