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SubDupes for Claude and ChatGPT

Let Claude or ChatGPT find your subscriptions.

Add SubDupes as a connector. Your assistant searches your email with its own connection, which we never see, and sends SubDupes only the subscriptions it finds. Nothing is added until you approve it.

https://mcp.subdupes.com/mcp
  • We never see your mailbox
  • You approve every item
  • Disconnect any time

Set it up

How do I add SubDupes to Claude or ChatGPT?

It takes about a minute. You need a SubDupes account, and the connector works during the 14-day free trial.

Quickest: start from SubDupes

  1. The Add menu in SubDupes, with Let Claude or ChatGPT find them at the top

    1. In SubDupes, choose Add, then Let Claude or ChatGPT find them.

  2. The Let Claude find your subscriptions card in SubDupes, with Set up in Claude and Open Claude and start buttons

    2. Pick your assistant and press Set up. SubDupes copies the connector address and opens your assistant’s connector settings, where you paste it.

  3. The SubDupes consent screen listing what the assistant will and won't be able to do, with an Allow button

    3. When your assistant asks, sign in to SubDupes and press Allow. Then use the start button on the same card to run the search.

Screens from SubDupes with demo data.

Or add it by hand

In Claude

Every Claude plan, including Free (Free allows one custom connector). Add it on the web or in Claude Desktop; it then works in the mobile apps too.

  1. Open Customize › Connectors, then + Add › Add custom connector.
  2. Name it SubDupes, paste https://mcp.subdupes.com/mcp and select Continue.
  3. Keep the sign-in settings Claude detects and select Add.
  4. Connect, sign in to SubDupes and press Allow.

On Team and Enterprise, an Owner first adds it under Organization settings › Connectors; each member then connects it from Customize › Connectors.

In ChatGPT

ChatGPT Plus and up, on the web. On Business and Enterprise, a workspace admin or owner adds it.

  1. Open Plugins, select +, then Add custom MCP server.
  2. Name it SubDupes and paste https://mcp.subdupes.com/mcp under Connection.
  3. Read the risk warning, tick the box, and select Create as a plugin.
  4. Sign in to SubDupes and press Allow.

Menu names as of November 2026, from Claude’s and ChatGPT’s help pages. They can change as the apps update.

Privacy

What does SubDupes see when I use it?

Your assistant

  • Searches your email with the connection you gave it, such as Gmail.
  • Decides which emails are receipts and pulls out the details.
  • Follows its own provider’s privacy terms.

SubDupes

  • Never connects to your mailbox.
  • Receives only what the assistant sends: the service, price, renewal date and a short excerpt of each receipt.
  • Holds them in a review queue. Nothing joins your list until you approve it.
  • Deletes items you never review after 14 days.

Full details are in our Privacy Policy.

Try asking

What should I ask my assistant?

  • “Find every subscription I pay for and add them to SubDupes.”
  • “Look through the last year of receipts for anything that renews.”
  • “Check my work email for software subscriptions and send them to SubDupes.”

Then open SubDupes, review what it found, and approve the ones that are right.

Questions

About the connector

Does SubDupes read my inbox?

No. Your assistant reads your email with its own connection. SubDupes only receives the subscriptions it sends, and never connects to your mailbox.

Does the connector cost extra?

No. It's part of SubDupes: a 14-day free trial with no card needed, then $99 once.

Which email accounts does it work with?

Whichever email your assistant can search. We've tested it with Gmail. Claude also offers an Outlook connector through Microsoft 365.

Will it add things I didn't ask for?

No. Everything lands in a review queue first, and only the items you approve are added to your list.

How do I disconnect it?

Remove SubDupes from your assistant's connector settings. Items you haven't reviewed are deleted after 14 days.

Find every subscription in one chat.

Start your free trial, add the connector, and let your assistant do the searching.

Start your 14-day free trial
https://mcp.subdupes.com/mcp