Atlas / MCP servers / arpitbatra123 / Google Tasks

Google TasksCAUTION

mcp/arpitbatra123/google-tasks-1

This Model Context Protocol (MCP) server provides a bridge between LLMs and Google Tasks, allowing you to manage your task lists and tasks directly through Claude.

Verdict
CAUTION
Grade
B
Trust score
87 /100
Exposed tools
15 6r · 6w · 3d
Transport
stdio
License
MIT
Stars
50
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 provides a bridge between MCP clients and Google Tasks, allowing you to manage your task lists and tasks directly from clients like Claude Desktop, Cursor, and Codex.

[!NOTE] All (bar some edits) code in this project was "vibe coded" - generated with Claude/Copilot with instructions from me.

Features

This MCP server provides the following functionality:

Task List Management

  • list-tasklists - List all your task lists
  • get-tasklist - Get details about a specific task list
  • create-tasklist - Create a new task list
  • update-tasklist - Update an existing task list
  • delete-tasklist - Delete a task list

Task Management

  • list-tasks - List all tasks in a task list, including paginated results
  • get-task - Get details about a specific task
  • create-task - Create a new task
  • update-task - Update an existing task
  • delete-task - Delete a task
  • complete-task - Mark a task as completed
  • move-task - Move a task (reorder, change parent, or move across task lists)
  • clear-completed-tasks - Clear all completed tasks from a list

Setup Instructions

1. Create Google Cloud Project & Enable API

  1. Go to the Google Cloud Console
  2. Create a new project
  3. Navigate to "APIs & Services" > "Library"
  4. Search for "Google Tasks API" and enable it
  5. Go to "APIs & Services" > "Credentials"
  6. Click "Create Credentials" > "OAuth Client ID"
  7. Configure the OAuth consent screen (External is fine for personal use)
  8. For Application Type, select "Web application"
  9. Add "http://localhost:3000/oauth2callback" as an authorized redirect URI
  10. Create the client ID and secret

2. Configure Environment Variables

Create a .env file in this project directory:

GOOGLE_CLIENT_ID=your_client_id_here
GOOGLE_CLIENT_SECRET=your_client_secret_here
GOOGLE_REDIRECT_URI=http://localhost:3
Read from source at commit fa0412b62e81OBSERVED · 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. Replace the environment placeholders with a token scoped to the least it needs.

claude-code
claude mcp add google-tasks-mcp --env GOOGLE_CLIENT_SECRET=${GOOGLE_CLIENT_SECRET} -- npx -y [email protected]
claude-desktop
{
  "mcpServers": {
    "google-tasks-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "GOOGLE_CLIENT_SECRET": "${GOOGLE_CLIENT_SECRET}"
      }
    }
  }
}
03

Exposed tools (15)

6 read · 6 write · 3 destructive. Blast radius: 3 tools can delete or overwrite — an agent that can be talked into calling a tool can be talked into calling this one.

ToolRiskDescription
authenticateread
clear-completed-tasksdestructive
complete-taskread
create-taskwrite
create-tasklistwrite
delete-taskdestructive
delete-tasklistdestructive
get-taskread
get-tasklistread
list-tasklistsread
list-tasksread
move-taskwrite
set-auth-codewrite
update-taskwrite
update-tasklistwrite
04

Trust audit

CAUTIONgrade B · trust 87/100 Install with care. The audit found things worth knowing before you trust its output.

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

What the source does

Filesystem
declared (1 observation(s))
Network
none-observed
Shell
none-observed
Dependencies
not all pinned
Secrets in source
found

Findings (6)

HIGHHard-coded secrets · inv.env_committed · CWE-798, CWE-321
.env
.env
Why it matters. a real .env in the package
Fix. ship .env.example with placeholders only
MEDIUMFilesystem / path · mcp.destructive_tools · CWE-22, CWE-59
clear-completed-tasks, delete-task, delete-tasklist
Why it matters. 3 tool(s) can delete or overwrite
Fix. prefer a read-only mode or scoped tokens; the page states the blast radius
LOWInventory / provenance · inv.hidden_file · CWE-1104
.env
.env
Why it matters. hidden member outside the usual dotfiles
Fix. review its purpose
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
package.json
@modelcontextprotocol/sdk, dotenv, google-auth-library, googleapis, zod, @types/node, ts-node, typescript
Why it matters. 8 dependency range(s) float
Fix. pin exact versions or ship a lockfile
INFOInventory / provenance · inv.oversize · CWE-1104
screenshot.png
screenshot.png
Why it matters. 1686854 bytes not read
INFOPrompt injection · prompt.credential_read · CWE-94, CWE-1427
README.md:128
- **No re-authentication needed** - After the initial setup, you won't need to authenticate again unless you revoke access or delete the credentials file
Why it matters. asks the agent to read credentials

Gates applied: no_behavioural_pass.

Audited 2026-10-08 · audit v0.4.1 · source sha fa0412b62e81full audit observations/trust-audit/mcp-server/arpitbatra123__google-tasks-1.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
2026-10-08fa0412b62e81CAUTIONB87first audit
06

Questions

What is the Google Tasks MCP server?

This Model Context Protocol (MCP) server provides a bridge between LLMs and Google Tasks, allowing you to manage your task lists and tasks directly through Claude.

What tools does Google Tasks expose?

15 in total: 6 read-only, 6 that write, and 3 that can delete or overwrite (clear-completed-tasks, delete-task, delete-tasklist). Every one is listed on this page with its risk.

Is Google Tasks safe to connect to an agent?

With care. The audit graded it B (87/100) and found 6 things worth knowing before you trust this server, listed below with the exact line each was found on. Separately from the audit: 3 of its tools can destroy data, so scope the token you give it to what you actually need.

What credentials does Google Tasks need?

It reads GOOGLE_CLIENT_SECRET from the environment. Give it a token scoped to the least it needs — an agent that can be talked into calling a tool can be talked into calling it with your credentials.

How does Google Tasks run?

It speaks stdio, so it runs as a local process your client starts. It is published on npm as google-tasks-mcp at 1.0.0.

How current is this page?

The grade is for one exact copy of the source (fa0412b62e81), read on 2026-10-08. The repository is watched and re-audited when it changes.

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