# RightCard Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## RightCard

Find which of your credit cards earns the most rewards at any store, using verified bank data.

- Record: https://musedirectory.ai/connector/rightcard
- Category: Finance & Bills
- Developer: RightCard (https://rightcard.ai/mcp)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 393ms, checked 2026-09-28T09:16:02Z
- Endpoint: https://mcp.rightcard.ai/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-09-24T00:21:17Z)
- Source: Found in the official MCP Registry (ai.rightcard/mcp) https://registry.modelcontextprotocol.io/v0/servers?search=ai.rightcard%2Fmcp

Compares your credit cards to show which one earns the best rewards at specific merchants or spending categories. Uses verified card data including base rates, rotating bonuses, and built-in benefits. No bank login required.

Example request: "Which of my credit cards should I use at Whole Foods today to maximize rewards?"

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use RightCard to help me. It is a free service with an MCP server at https://mcp.rightcard.ai/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- best_card: Which 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 li
- lookup_merchant: The 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.
- search_cards: Search 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.
- card: Everything 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.
- rotating_calendar: Live 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.

Screening checks:
- MCP handshake: pass (Answered in 165ms)
- Domain against threat feeds (Cloudflare security DNS): pass (mcp.rightcard.ai, rightcard.ai not flagged)
- Published packages against the OSV malicious-package database: pass (No malicious-package advisories)
- Hidden instructions or invisible characters in tool text: pass (5 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)