Ask in plain words
"What were last month's business expenses, and what's missing?" The assistant reads the books you have shared.
Claude
ChatGPTYour receipts and transactions, in Claude and ChatGPT.
Bring your receipts and transactions from Terrapin into Claude or ChatGPT, securely, through one connection.
Your assistant does the legwork. You stay in charge.
What it enables
Ask. It proposes. You approve.
It finds the gaps
Missing receipts, wrong dates, unmatched card charges. It drafts the fix and prepares the accountant pack.
Nothing changes until you say so
Every change waits for your yes in Terrapin. Turn it off any time.
What were last month's business expenses, and what's missing?
Terrapin September: 42 business expenses, £3,184.20. 3 card charges have no receipt. 1 receipt has the wrong date.
| 04 Sep | Central Parking | £18.50 | Receipt found |
| 09 Sep | Bright Office Supplies | £64.00 | No receipt |
| 12 Sep | Shell Garage | £48.60 | Receipt dated 12 Oct |
| 18 Sep | River Café | £26.40 | No receipt |
| 23 Sep | Train ticket | £112.30 | No receipt |
Why it's better
One secure connection beats pasting spreadsheets into a chat.
Without Terrapin
- Export, copy and paste, then hope nothing is out of date.
- The assistant guesses at what it can't see.
- Fixes still have to be made by hand, somewhere else.
With Terrapin
- It reads only the books you choose to share, live.
- Unknowns are shown as unknown, never guessed.
- It can't approve its own suggestions.
- Sending to QuickBooks or Xero is its own, separate approval.
- One tap turns access off.
Control and security
You decide what it sees, and what happens.
Give Claude access to My business
- Read books
- Suggest changes
- Prepare packs
Separate switches
- View original receipts
- Include in packs
- Attach to QuickBooks/Xero
Until: 30 days · Turn off any time
Review change
My business · Suggested by Claude
- Date
12 Oct 2026→ 12 Sep 2026- Matched to
- Shell Garage £48.60 card charge
Missing: 3 receipts
This change expires in 15 minutes.
How to get started
Connected in a few minutes.
Add Terrapin in Claude or ChatGPT
Add a connector and use mcp.tryterrapin.com.
Sign in with your Terrapin account
No new account. New to Terrapin? Start free first.
Choose the book and permissions
Personal, a team's or a client's. Pick what it may do, and for how long.
Ask your first question
Try "What's missing from last month?"
Questions.
Does it read my email or bank?
No. The assistant reads only what is already in Terrapin, and only the books you choose to share with it.
Can it change things on its own?
No. It can suggest a fix or prepare a pack. Nothing changes until you approve it in Terrapin, and it can never approve its own suggestion.
How do I turn it off?
One tap in Terrapin removes the assistant's access to that book. Access can also be set to expire.
Which assistants does it work with?
Claude and ChatGPT. Add Terrapin as a connector and sign in with your normal Terrapin account.
What does it cost?
The connector is part of Terrapin. Start with a 7-day free trial, which includes 90 days of receipt discovery.
Works with Claude and ChatGPT. Nothing changes without your approval.
Your assistant does the legwork. You stay in charge.
Connect now
7-day free trial · 90 days of discovery included.