Your AI. Your finances. Connected.
Give Claude, ChatGPT or Gemini a secure view of your real NZ mortgage, KiwiSaver, savings and goals — so every answer is grounded in your numbers and Fat Pocket's tested calculators, not guesses.
Works with Claude · ChatGPT · Gemini · open protocol (MCP)
How much would I save paying $500 more per fortnight?
- get_mortgage
- calculate_extra_repayment
Adding $500 to every fortnightly repayment on your mortgage, at your current fixed rate:
The trade-off is liquidity: money paid into the loan is harder to get back than money in savings.
Fat Pocket provides information and estimates, not financial advice.
Works with the assistant you already use
No Fat Pocket chatbot to learn. Connect the AI you pay for and it gains 17 tools that read your profile and run the maths.
Claude
Claude on the web, desktop, mobile and Claude Code. Sign in once through the Fat Pocket consent screen.
ChatGPT
ChatGPT on the web with developer mode, offered on paid plans. Add Fat Pocket as a connector.
Gemini
Gemini CLI works anywhere today; the Gemini app’s custom apps are not yet offered in New Zealand.
Open protocol · Model Context Protocol (MCP)
- get_financial_profile
- get_net_worth
- get_cashflow
- get_mortgage
- get_investments
- get_kiwisaver
- get_debts
- get_financial_goals
- get_mortgage_rates
- get_opportunities
- calculate_mortgage
- calculate_extra_repayment
- calculate_refinance
- calculate_kiwisaver_projection
- calculate_investment_scenario
- calculate_debt_paydown
- calculate_cashflow
Three steps to grounded answers
Add your finances
Create a free account and set up your mortgage, KiwiSaver, income and goals in a few minutes.
Connect your AI
Link Claude, ChatGPT or Gemini to your Fat Pocket account with a secure connection you control.
Ask real questions
“If I pay $200 more a fortnight, when is my mortgage gone?” — answered from your actual numbers.
Questions that get real answers
Each one calls Fat Pocket’s tools, works from your own profile and shows the assumptions behind every figure.
Built for trust, not hype
Your data, your grant
Your numbers live in your Fat Pocket account. Your assistant sees only what you grant, and you can revoke access from the Connect AI page at any time.
Deterministic calculations
Every number comes from the same tested engines behind our free tools. Your assistant explains the results — it never invents the maths.
No lock-in
Fat Pocket AI speaks the open Model Context Protocol. Use the assistant you already pay for; there is no separate chatbot to learn.
- tools your AI can call
- 17
- model-invented numbers
- 0
- assistants supported
- 3
- to start — no card needed
- $0
Prefer to run the numbers yourself?
Every calculator and comparison is still free and needs no sign-up.
Three things Kiwis come here to sort out
KiwiSaver
Compare fees and returns across every NZ provider, then project your balance at 65.
Home loans
Live rates from every major bank, repayment maths, and first-home-buyer eligibility in one place.
Investing
Plain-English guides plus platform comparisons — start from $1 and see what compounding does.
Today's home loan board
Ask your AI something real.
A free account, the core mortgage and KiwiSaver tools first, and a direct line to shape what comes next. No credit card, no lock-in.
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Fat Pocket provides information and estimates, not financial advice.