DeltaTask MCP Server

A powerful, locally-hosted task management application with Obsidian integration and a Model Context Protocol (MCP) server.

Remote serverstreamable-httpPython

What is the DeltaTask MCP server?

DeltaTask MCP server is a hosted integration for AI assistants that speak the Model Context Protocol. A powerful, locally-hosted task management application with Obsidian integration and a Model Context Protocol (MCP) server.

What you get

  • Smart Task Management — Create tasks with urgency levels and effort estimates
  • Prioritization Engine — Automatically sorts tasks by urgency and effort
  • Task Decomposition — Split larger tasks into manageable subtasks
  • Tagging System — Organize tasks with custom tags
  • Local Storage — All data stored locally in SQLite database
  • Obsidian Integration — Bi-directional sync with Obsidian markdown files

What the assistant can call

Once DeltaTask is connected, these are the calls the assistant has available:

  • get_task_by_id — Get a specific task by ID
  • search_tasks — Find tasks by title, description, or tags
  • create_task — Create a new task
  • update_task — Update a task's properties
  • delete_task — Remove a task
  • sync_tasks — Sync tasks from Obsidian markdown into SQLite
  • list_tasks — List all tasks
  • get_statistics — Retrieve metrics about tasks
  • create_subtasks — Split a task into multiple subtasks
  • get_all_tags — Get all unique tag names
  • get_subtasks — Get subtasks for a given parent task
  • finish_task — Mark a task as completed

Setting it up

Being a remote server, there is no local install. You register the endpoint with your client, authorise it once, and the tools appear.

Configuration and credentials

  • Python 3.10+ - SQLite3 - Obsidian (optional, for markdown integration)

Choosing this one

Among the planning and project tracking options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. DeltaTask's toolset — get_task_by_id, search_tasks, create_task and 11 more — is a fair guide to whether it matches your workflow. It is maintained by brysontang; worth a glance at recent repository activity before you build anything load-bearing on it.

SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.

Before you rely on it

  • Your data travels to the provider's service, so the usual questions apply about what you send and what they retain.
  • With 14 tools registered it takes up a noticeable share of the context window; turn it off in projects that never touch DeltaTask.
  • MCP clients confirm each tool call by default. Leave that on until you have watched what the deltatask mcp server does with a few real requests.

Available tools

ToolWhat it does
get_task_by_idGet a specific task by ID
search_tasksFind tasks by title, description, or tags
create_taskCreate a new task
update_taskUpdate a task's properties
delete_taskRemove a task
sync_tasksSync tasks from Obsidian markdown into SQLite
list_tasksList all tasks
get_statisticsRetrieve metrics about tasks
create_subtasksSplit a task into multiple subtasks
get_all_tagsGet all unique tag names
get_subtasksGet subtasks for a given parent task
finish_taskMark a task as completed
PrerequisitesThe Prerequisites tool exposed by this server.
Installation1. Clone this repository 2. Set up the Python environment using uv:

How to install the DeltaTask MCP server

{
     "mcpServers": {
       "deltatask": {
         "command": "uv",
         "args": [
           "--directory",
           "/ABSOLUTE/PATH/TO/DeltaTask",
           "run",
           "server.py"
         ]
       }
     }
   }

Configuration as documented by the project. Restart the client after saving.

Configuration

  • Python 3.10+ - SQLite3 - Obsidian (optional, for markdown integration)

Example prompts to try

  • Use DeltaTask to get task by id.
  • Use DeltaTask to search tasks.
  • Use DeltaTask to create task.

Frequently asked questions

It connects DeltaTask to MCP-compatible AI assistants such as Claude and Cursor, exposing 14 tools (get_task_by_id, search_tasks, create_task, and more) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with DeltaTask directly.