MaxWorth MCP: Connect Your MaxWorth Account to ChatGPT and Claude

Quick answer: MaxWorth runs a read-only MCP server at https://mcp-public.maxworth.app/mcp. Connect it and your assistant can look up any card in the US, Canada or Australia, list a card’s statement credits with the date each one resets, compare two or three cards, pull today’s cashback portal rates for a store, and quote the Credit Deadline Report, every answer carrying a maxworth.app link to cite. It needs no account and can see nothing about you.

What it is, in one paragraph

MCP, the Model Context Protocol, is the open standard assistants use to call outside tools instead of guessing from training data. A server publishes a list of tools with typed inputs; the assistant decides when to call them and folds the result into its answer. MaxWorth’s server publishes seven tools over the same database that powers the app and this site, hand-verified against issuer terms. Nothing on it is behind a login because nothing on it is private: it is the public catalogue, made callable.

What it answers

Tool	Ask it things like
search_cards	”Which Aeroplan cards are there in Canada?”
get_card	”What does the Amex Platinum earn and what credits does it have?”
list_credits	”When does each Chase Sapphire Reserve credit reset, and which need enrollment?”
compare_cards	”Venture X vs Sapphire Reserve vs Platinum on fee and credits”
search_cashback_portals	”Which portal pays the most at Nike today?”
search_card_offers	”Which Amex Offers are live at Hilton right now, and on which cards?”
credit_deadline_report	”How many credit deadlines does a typical premium cardholder face a year?”
about_maxworth	”What is MaxWorth and what does it cost?”
search + fetch	Open-ended questions: the assistant searches every card page, credit page and guide, then reads the full page and cites it. This pair is what ChatGPT’s Deep Research uses.

Every tool is read-only and declared as such, so assistants that ask before running a tool (ChatGPT does) have no reason to stop you for each lookup.

Reset dates follow the same rule as the credit pages: credits whose terms say calendar year reset on January 1, credits whose terms say cardmember year reset on your anniversary, and where the issuer states neither the server says “per current terms” rather than guessing.

How to connect

Copy either address, then:

Both servers are listed in the official MCP Registry as app.maxworth/maxworth-public and app.maxworth/maxworth, so clients that install from the registry find them by searching for MaxWorth.

Your own cards: the personal server

The public server knows every card; it does not know which ones are yours. Connect the personal server, approve read access with your MaxWorth account, and the assistant can answer about your cards:

Tool	Ask it
get_my_cards	”Which cards do I have, and what do the fees add up to?”
get_my_credits	”List every credit on my Platinum with this period’s deadline.”
get_expiring_credits	”What should I use before the end of the month?”
get_my_offers	”Do I have an activated Nike offer on any card?”
get_annual_fee_roi	”Is the Sapphire Reserve paying for its fee this year?”

Deadlines are computed the same way the app computes them, from your card’s annual-fee date and each credit’s cycle, so the connector and the app agree on what ends when. Offers are counted the way the app counts them: one Chase offer sitting on both a Sapphire Reserve and a United Quest counts once, with the cards it sits on named in the answer. It reads only what you added to MaxWorth: cards, credits and the offers synced by the extension. There are no transactions to read, because MaxWorth never connects to a bank. Disconnecting the connector in the assistant ends its access.

Both servers also include the search and fetch tools, so ChatGPT’s Deep Research can cite card and credit pages.