RightCard
Which of your credit cards to use at any store, from verified bank data. No bank login.
0 stars266 downloads/wk
Reviews
Write oneNobody has reviewed RightCard yet.
If you have run it, two minutes of your experience saves the next person an afternoon.
Tools (5, 1 write)
write = sends, deletes, buys or postsbest_cardFreeWhich of the given cards earns the most at a store (merchant) or for a spend category, today. Returns the card, the honest rate, why, and caveats (merchant-code traps, activation, ties). Base rates + rotating bonuses + built-in card benefits only; a user's personal bank offers live on their phone and are not consulted here.
cardFreeEverything RightCard knows about one card: rates by category, base rate, currency, annual fee, verification status, live rotating windows, and the choose-your-category spec if it has one.
lookup_merchantwrite actionFreeThe store's reward category as RightCard's directory files it, its merchant type, and the merchant-code caveat when a category bonus usually will not post there (superstores like Walmart/Target, warehouse clubs like Costco/Sam's). Same ranking the app uses.
rotating_calendarFreeLive and upcoming rotating-category windows (Freedom Flex, Discover it, Citi Dividend…) and permanent merchant benefits, from the same verified data as the app. Optionally filter by card id.
search_cardsFreeSearch RightCard's catalog by card or issuer name to get the ids to pass into best_card. Verified cards first; unverified cards are flagged, never hidden.
Public scan report
scanner v0.1.3 · 2026-09-19 · same rubric, same numbers if you re-run it
- Code scan21 source files scanned25/25
- Live reliabilityremote reachable in 386ms20/20
- Tool poisoning5 tool descriptions checked15/15
- Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
- Maintenancelast push 1 days ago15/15
- Maintainer identityregistry namespace matches repository owner; website matches verified namespace9/10
Findings (1)
- highWrite-action tools reachable without authentication
auth.open-write
Install directly
claude mcp add --transport http mcp https://mcp.rightcard.ai/mcp
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