This one quietly replaces every finance app, budgeting app, and subscription tracker at once. You connect Claude to your Gmail, paste one prompt, and it goes through your whole inbox and builds you a full audit of every subscription you're paying for: what they cost, what they add up to per year, and how much you're quietly wasting. It even catches the ones that snuck a price increase past you.

One honest note first. Claude reads and analyzes, it doesn't cancel anything or move money. It hands you the list, you decide what to kill. Here's the setup, the exact prompt, and 20 more ways to put your inbox to work.

Setup, about 30 seconds

  1. In Claude, open Cowork in the top left.
  2. Click Customize.
  3. Under Connectors, make sure Gmail is connected and the access toggles are turned on.
  4. Go back to Cowork and paste the prompt below.

The exact audit prompt

Paste this with Gmail connected. It works as is.

Go through my entire Gmail and audit every subscription I am paying for. Look at receipts, renewals, payment confirmations, and "your card was charged" emails.

Build me a dashboard with:
1. A total count of active subscriptions.
2. What I pay per month and per year, for each one and as a grand total.
3. A full table of every charge (software, streaming, memberships, apps, anything recurring) with the name, the price, and how often it bills.
4. A "price went up" section flagging any subscription that has charged me more than it used to, with the old price, the new price, and when it changed.
5. The ones I haven't used or interacted with in months, so I know what to cancel first.

Sort the table from most expensive to least. At the end, tell me the single fastest way to cut my yearly spend.

Claude scans the inbox and comes back with the count, the monthly and yearly totals, and how much you're wasting. Scroll the table and you'll see every charge in one place, plus the sneaky price hikes you never noticed.

20 more ways to use Claude in your Gmail

The audit is the headline. Here are 20 more jobs to hand it, same connected inbox.

  1. Cancel list. "Find every subscription I haven't used in 3 months and write me the cancel list."
  2. Free trials about to bill. "Find any free trials that are about to convert to paid and when they charge."
  3. Receipts to a spreadsheet. "Pull every receipt this month into a spreadsheet for my expenses."
  4. Refunds owed. "Find purchases still inside their return or refund window."
  5. Duplicate charges. "Check for any duplicate or double subscriptions I'm paying for twice."
  6. Spend by store. "Total up everything I've spent at [store] this year."
  7. Morning brief. "Summarize my unread emails and flag anything urgent."
  8. Draft replies. "Draft replies in my voice to the emails that actually need one."
  9. Chase no-replies. "Find emails I sent that never got a response and draft a nudge."
  10. Unsubscribe sweep. "List the newsletters I never open so I can clean them out."
  11. Find the attachment. "Find the email with the contract attachment from last month."
  12. Bills due soon. "Find any bills or payments due in the next two weeks."
  13. Travel in one place. "Pull my flight and hotel confirmations into one itinerary."
  14. Tax documents. "Find and list all my tax documents and receipts for the year."
  15. Warranty windows. "Find recent purchases and tell me which still have a warranty or return window open."
  16. Catch up on a thread. "Summarize this long thread in 5 bullets and tell me what's still open."
  17. Weekly recap. "Summarize everything important that hit my inbox this week."
  18. Build a contact list. "Pull the people I email most into a clean contact list."
  19. Order tracking. "Find my recent orders and tell me what's shipped and what hasn't."
  20. The yearly money review. "Add up everything I spent through email this year and break it down by category."
Most people lose hundreds a year to subscriptions they forgot they had. The reason isn't that they're careless, it's that the charges are buried in an inbox no one wants to dig through. This just hands the digging to Claude, and shows you the number you've been avoiding.

Run the audit once. The first time you see the real yearly total of what you forgot you were paying for, you'll cancel three things on the spot.
Anir