Short answer: not directly. Tiller does a great job turning your bank and card transactions into a categorized spreadsheet you actually understand. But there's no official Tiller MCP server today, so your AI assistant can't query Tiller itself. The practical workaround is to connect the same underlying bank, brokerage and card accounts to Truthifi, which gives an AI assistant a read-only window onto your real financial data — including the investment and net-worth picture a spreadsheet alone doesn't cover.

What Tiller Does

Tiller pulls your bank, credit card and other account transactions into a live Google Sheets or Excel spreadsheet, then applies categorization rules so you can see where your money goes. It's built for people who like the flexibility of a spreadsheet but don't want to copy-paste transactions by hand. You customize the categories, build your own budget tabs, and track spending trends over time, all inside a tool you already know how to use.

That makes Tiller a budgeting and personal-finance-management (PFM) app in its own right — it is itself an aggregator of your transaction data, not a bank or brokerage holding your money. The accounts live at your actual financial institutions; Tiller just organizes the feed.

Does Tiller Have an MCP Server or API?

As of this writing, there is no official Tiller MCP server. If that changes, this page will be updated to reflect it — but absent a published, verifiable MCP integration from Tiller, no AI assistant can connect to Tiller directly through the Model Context Protocol today.

We also aren't asserting a public developer API here beyond what Tiller documents for its own spreadsheet feed integrations, since inventing API details that aren't confirmed would do you no favors. If you're trying to get Tiller's categorized data directly into a custom tool, check Tiller's own documentation for the current state of any feed or export options.

The practical path for most people who want an AI assistant to reason over this data isn't Tiller's API at all — it's linking those accounts directly to a service built for exactly that job.

Setting Up AI Access to Your Financial Picture (Not Through Tiller)

Since there's no Tiller MCP to connect to directly, here's how to get an equivalent — and broader — financial picture in front of your AI assistant, step by step:

1. Create a free Truthifi account. You don't need to touch your existing Tiller spreadsheet or change how you budget there.

2. Link your bank, brokerage and card accounts to Truthifi. These are the same underlying accounts Tiller already reads for your spreadsheet — you're just also connecting them to Truthifi.

3. Let Truthifi run its account checks. Truthifi reviews balances, holdings and transaction activity across what you've linked, scoped read-only to bank and brokerage accounts.

4. Connect your AI assistant to Truthifi. Sign in to Truthifi from your AI assistant and click Authorize on Truthifi's consent screen so it can read the data you've linked in Truthifi.

5. Ask your assistant about your accounts. From here, your AI can reason across your real financial picture, not just the categorized transactions sitting in a spreadsheet.

What You Can Ask

A Tiller user already knows their monthly spending by category — that's the spreadsheet's whole job. What a spreadsheet doesn't do is reason across your investments or pull your net worth together with your spending in one conversation. Once your accounts are connected through Truthifi, you can ask an AI assistant things like:

• "How does this month's spending compare to what I've budgeted, and what's driving the difference?"

• "What's my total net worth across all my linked accounts right now?"

• "Are my investment accounts too concentrated in any one holding?"

• "If I keep spending at this rate, what does that do to my savings goal this year?"

These are questions that span both the spending side Tiller already tracks and the investment/net-worth side it doesn't.

With & Without Truthifi

Without Truthifi: Tiller gives you a categorized, customizable view of your transactions in a spreadsheet. It's genuinely useful for budgeting. But your AI assistant has no way to query that data, and Tiller's spreadsheet doesn't natively bring in investment holdings or a consolidated net-worth view.

With Truthifi, those same accounts are connected to a service built for AI access. Your assistant can see spending patterns alongside investment holdings and net worth, read-only, and reason across all of it in one conversation — without replacing your Tiller spreadsheet or your budgeting workflow.

How Truthifi Can Help

Truthifi doesn't connect to Tiller itself — Tiller is a budgeting app, not a custodial account, so there's nothing for Truthifi to aggregate there. Instead, Truthifi reads the accounts you've already linked to Tiller, through its own connections via Plaid, Yodlee and By All Accounts. That gives your AI assistant read-only visibility into the bank, brokerage and card accounts you connect to Truthifi, covering investment holdings, concentration, and a consolidated net-worth view sitting alongside your spending, which a categorization spreadsheet was never designed to provide.

Tiller stays the tool you use to budget. Truthifi is the layer that makes the whole picture — spending and investing together — legible to your AI assistant. Truthifi is not an investment adviser and doesn't give investment, tax or legal advice.

FAQ

Does Tiller have an official MCP server? Not as of this writing. There's no published, official Tiller MCP integration to point an AI assistant at directly.

Can my AI assistant read my Tiller spreadsheet directly? Not through Truthifi. Truthifi doesn't connect to Tiller — it connects to the underlying bank, brokerage and card accounts you've linked, which is the same data Tiller categorizes in its spreadsheet.

Will Truthifi replace my Tiller budget? No. Truthifi is built to complement Tiller, not replace it. Keep using Tiller for budgeting; use Truthifi to extend AI visibility to your investments and net worth as well.

Is my data safe if I connect my accounts to Truthifi? Access is read-only for bank and brokerage accounts. Your login credentials are entered with the aggregator that links your accounts, not with Truthifi.

What if Tiller launches an MCP server later? We'll update this page if that happens. Until then, linking the underlying accounts through Truthifi is the practical way to get AI visibility across your full financial picture.

Read Next

• Is Plaid Safe? A Guide to How Your Bank Data Gets Shared

• Is Yodlee Safe? What to Know Before You Connect

• The Lifetime Fee Calculator: What Investment Fees Really Cost You

• Is It Safe to Connect My Accounts to an AI Assistant?

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See your Tiller-tracked spending sit alongside your investments and net worth, in one place your AI assistant can actually query. Start free on Truthifi.