list_tasksReadList tasks
See active or completed tasks and their priority order.
The One Thing for AI assistants
Your assistant can help with the list, too.
The One Thing includes a secure remote MCP server. Connect it once, choose the permissions you are comfortable with, and let your assistant capture and complete tasks alongside you.
Remote MCP endpoint
https://mcp.theonethingapp.com Connect in three steps
Secure by default.
Simple on purpose.
Any remote MCP client with OAuth support can connect. The exact button names vary by client, but the flow is the same.
- 01
Add the server
Open your assistant’s MCP or connector settings and add
https://mcp.theonethingapp.comas a remote server. - 02
Sign in to The One Thing
Your browser opens a secure authorisation page. Sign in with the same account you use in the app.
- 03
Choose access
Approve read access, write access or both. You can revoke the connection later.
What is my one thing today?
↗Calling list_tasksReading active tasks
Your first priority is “Send the proposal”. Want me to mark it complete when you are done?
Yes, it’s done.
✓Calling complete_taskTask completed
Less task admin
Use natural language. Keep control.
Ask your assistant to capture something before you forget it, tell you the current priority, review recent momentum or complete a task. Every action stays tied to your signed-in account and the permissions you approved.
- “Add book the dentist to my list.”
- “What should I focus on next?”
- “How many tasks did I finish this week?”
Available tools
Seven focused capabilities.
No open-ended database access.
get_taskReadGet a task
Retrieve one task using its secure task ID.
get_completion_trendsReadCompletion trends
Summarise recent completions, averages and streaks.
add_taskWriteAdd a task
Capture a new task without leaving the conversation.
update_taskWriteUpdate a task
Rename or reprioritise a task with Pro access.
complete_taskWriteComplete a task
Mark an active task complete and move forward.
delete_taskDestructiveDelete a task
Permanently delete one of your tasks.
What stays protected
Your password never goes to the AI client.
The connection uses OAuth 2.1 with PKCE. Sign-in happens on The One Thing’s own secure authorisation page, and the client receives a revocable token—not your password.
01
User-scoped dataEvery read and action is restricted to the signed-in user.
02
Explicit permissionsRead and write scopes are shown before you approve access.
03
Destructive actions labelledTask deletion is explicitly marked destructive for supporting clients.
04
Same product rulesFree-plan limits and Pro-only editing still apply through MCP.
Ready to connect?
Give your assistant one useful job.
Add the endpoint in your MCP client, sign in and ask: “What is my one thing?”
https://mcp.theonethingapp.com Open The One Thing