Atlas / MCP servers / rossshannon / Things

ThingsSAFE

mcp/rossshannon/things-4

MCP server for Things 3 with read/write support for tasks, projects, areas and tags.

Verdict
SAFE
Grade
B
Trust score
89 /100
Exposed tools
24 19r · 5w · 0d
Transport
—
License
NOASSERTION
Stars
44
01

Overview

From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.

This Model Context Protocol (MCP) server lets you use Claude Desktop to interact with your task management data in Things 3. You can ask Claude or your MCP client of choice to create tasks, analyze projects, help manage priorities, and more.

This MCP server leverages a combination of the Things.py library and Things 3’s AppleScript support, enabling reading and writing to Things 3.

Why Things MCP?

This MCP server unlocks the power of AI for your task management:

  • Natural Language Task Creation: Ask Claude to create richly-detailed tasks and descriptions in natural language
  • Smart Task Analysis: Let Claude explore your project lists and focus areas and provide insights into your work
  • GTD & Productivity Workflows: Let Claude help you implement productivity and prioritisation systems
  • Seamless Integration: Works directly with your existing Things 3 data

Features

  • Access to all major Things lists (Inbox, Today, Upcoming, Logbook, Someday, etc.)
  • Project and Area management and assignment
  • Tagging operations for tasks and projects
  • Advanced search capabilities
  • Recent items tracking
  • Support for nested data (projects within areas, todos within projects)
  • Checklist/Subtask support - Read and display existing checklist items from todos

Installation

Prerequisites

  • Python 3.12+
  • Claude Desktop
  • Things 3 for MacOS

Step 1: Install the package

Option A: Install from PyPI in a virtual environment (recommended)

# Create a virtual environment in your home directory
python3 -m venv ~/.venvs/things3-mcp-env
source ~/.venvs/things3-mcp-env/bin/activate

# Install the packag
Read from source at commit 2422f85bf82bOBSERVED · 2026-10-08
02

Connect

Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control.

claude-code
claude mcp add Things3-MCP-server -- uvx Things3-MCP-server
claude-desktop
{
  "mcpServers": {
    "Things3-MCP-server": {
      "command": "uvx",
      "args": [
        "Things3-MCP-server"
      ]
    }
  }
}
03

Exposed tools (24)

19 read · 5 write · 0 destructive.

ToolRiskDescription
add_projectwriteCreate a new project in Things.
add_todowriteCreate a new todo in Things.
get_anytimereadGet all todos from Anytime list. Note that this will return an extensive list of tasks. It is generally recommended to use get_todos with filters or search_todos instead.
get_areasreadGet all areas from Things. Use these names when assigning a task or project to an area.
get_inboxreadGet todos from Inbox.
get_logbookreadGet completed todos from Logbook, defaults to last 7 days.
get_projectsreadGet all projects from Things.
get_random_anytimereadGet a random sample of items from the Anytime list.
get_random_inboxreadGet a random sample of todos from Inbox.
get_random_todosreadGet a random sample of todos, optionally filtered by project.
get_recentreadGet recently created items.
get_somedayreadGet todos from Someday list.
get_tagged_itemsreadGet items with a specific tag.
get_tagsreadGet all tags.
get_todayreadGet todos due today.
get_todosreadGet todos from Things, optionally filtered by project.
get_trashreadGet trashed todos.
get_upcomingwriteGet all upcoming todos (those with a start date in the future).
search_advancedreadAdvanced todo search with multiple filters.
search_itemsreadSearch for items in Things.
search_todosreadSearch todos by title or notes.
show_itemreadShow a specific item or list in Things.
update_projectwriteUpdate an existing project in Things.
update_todowriteUpdate an existing todo in Things.
04

Trust audit

SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.

LayerWhat it checksResult
L0Provenance & inventoryPASS
L1Static analysis of the codePASS
L2Instruction surface (what it tells the agent)PASS
L3Class-specific surfacePASS
L4Behavioural (sandbox)SKIPPED

What the source does

Filesystem
none-observed
Network
none-observed
Shell
none-observed
Dependencies
pinned
Secrets in source
none-found

Findings (6)

LOWInventory / provenance · inv.hidden_file · CWE-1104
.envrc
.envrc
Why it matters. hidden member outside the usual dotfiles
Fix. review its purpose
LOWInventory / provenance · inv.hidden_file · CWE-1104
.pre-commit-config.yaml
.pre-commit-config.yaml
Why it matters. hidden member outside the usual dotfiles
Fix. review its purpose
LOWInventory / provenance · inv.hidden_file · CWE-1104
.safety-project.ini
.safety-project.ini
Why it matters. hidden member outside the usual dotfiles
Fix. review its purpose
LOWObfuscation / stealth · obf.zero_width · CWE-506, CWE-94
tests/test_task_operations.py:180
rename_test_area(area3_id, f"{test_namespace}-🏃🏽♂️ Fitness")
LOWObfuscation / stealth · obf.zero_width · CWE-506, CWE-94
tests/test_task_operations.py:191
result = update_todo(id=test_todo, list_name=f"{test_namespace}-🏃🏽♂️ Fitness")
LOWSupply chain · prompt.pipe_to_shell · CWE-829, CWE-1357
README.md:54
curl -LsSf https://astral.sh/uv/install.sh | sh

Gates applied: no_behavioural_pass.

Audited 2026-10-08 · audit v0.4.1 · source sha 2422f85bf82bfull audit observations/trust-audit/mcp-server/rossshannon__things-4.json · Report an issue / request a re-scan
05

Audit history

Every audit this server has had. A grade with a past is a grade somebody is still checking.

DateSourceVerdictGradeScoreChange
2026-10-082422f85bf82bSAFEB89first audit
06

Questions

What is the Things MCP server?

MCP server for Things 3 with read/write support for tasks, projects, areas and tags.

What tools does Things expose?

24 in total: 19 read-only, 5 that write, and 0 that can delete or overwrite. Every one is listed on this page with its risk.

Is Things safe to connect to an agent?

The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean server reads B.

What credentials does Things need?

No credential environment variables were found in its source, so it appears to need none.

How current is this page?

The grade is for one exact copy of the source (2422f85bf82b), read on 2026-10-08. The repository is watched and re-audited when it changes.

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