PerkMath in your AI assistant

Card credits, reset dates and reminders, plus whether a card is worth its fee. Works in Meta Muse, Claude and ChatGPT.

PerkMath is a connector (an MCP server) for AI assistants. Ask about a premium travel card and your assistant gets PerkMath's numbers: every statement credit, when it resets, what you'd net after the annual fee, and which credits are about to expire. It needs no login and never connects to your bank.

Try asking

"Which of my Amex Platinum credits expire this month? Remind me a week before each one."
"Is the Sapphire Reserve worth $795 if I spend $800 a month on dining?"
"Sapphire Reserve or Venture X for someone who travels twice a year?"
"What credits does the Amex Gold have, and which need enrollment?"
"Set up reminders for every credit on my Robinhood Platinum."

Add it

Server URL:

https://perkmath.com/mcp

Meta Muse: find PerkMath in the Muse connector directory once it's listed. Until then, add it as a custom connector with the URL above.
Claude: Settings → Connectors → Add custom connector, and paste the URL.
ChatGPT: add it as a custom connector (app) with the URL above, where your plan supports custom connectors.

Authentication: none. Transport: Streamable HTTP, stateless JSON responses.

Tools

Tool	What it does
`list_cards`	The cards PerkMath covers, with fees and the face value of their credits.
`get_card_credits`	Every credit and perk on a card: amount, reset schedule, enrollment, end dates, earn rates, and the sources checked.
`credit_deadlines`	Unused credits on your cards with the use-by date, a suggested reminder date and ready-made reminder text. Your assistant sets the reminders.
`card_value`	Net yearly value of a card for your spending, the same maths as the PerkMath calculator.
`compare_cards`	Two cards side by side, plus what holding both is worth.
`reminder_signup_link`	A link to sign up on perkmath.com for a free monthly email of the credits to use before they reset.

All tools are read-only.

Cards covered

Chase Sapphire Reserve, Amex Platinum, Capital One Venture X, Bilt Palladium, Chase Sapphire Preferred, Amex Gold, Robinhood Gold and Robinhood Platinum.

Card terms change often. PerkMath checks them against the issuers' own pages, and each card shows the date it was last checked. Confirm with your card issuer before relying on a number. PerkMath gives estimates, not financial advice.

Privacy

The connector receives only what a tool needs: the cards, credits and spending you ask about. It never sees your conversation, your email or your bank. Details are in the privacy policy; use is covered by the terms.

Support

phil@homedoctor.pro