Server data from the Official MCP Registry
Which of your credit cards to use at any store, from verified bank data. No bank login.
About
Which of your credit cards to use at any store, from verified bank data. No bank login.
Remote endpoints: streamable-http: https://mcp.rightcard.ai/mcp
Security Report
RightCard MCP is a well-architected credit card recommendation engine with strong security practices. The server is stateless, performs no authentication (appropriate for its read-only nature), and carefully validates all inputs through Zod schemas. Code quality is high with proper error handling and no malicious patterns detected. Minor findings around error message specificity and input validation do not significantly impact the security posture of this developer tool. Supply chain analysis found 2 known vulnerabilities in dependencies (2 critical, 0 high severity). Package verification found 1 issue.
7 files analyzed · 7 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
How to Install & Connect
Available as Local & Remote
This plugin can run on your machine or connect to a hosted endpoint. during install.
Documentation
View on GitHubFrom the project's GitHub README.
RightCard MCP
The card-selection oracle for agents: which of your credit cards should pay here? Answers come from RightCard's bank-published, two-source-verified reward data — the same data the RightCard iOS app uses.
- No bank login. No account. Nothing stored. You pass card ids and a store name; you get an answer.
- Honest by construction: merchant-code caveats (Costco is a warehouse club, so the grocery bonus won't post), rotating quarters with activation flags, ties named, points valued per program.
- Cash value by default;
valuation: "points"for conservative travel values.
Use it
Hosted (stateless Streamable HTTP):
https://mcp.rightcard.ai/mcp
Local (stdio, nothing leaves your machine except a read of the public catalog):
npx rightcard-mcp
Claude Desktop / Claude Code / Cursor config:
{ "mcpServers": { "rightcard": { "command": "npx", "args": ["-y", "rightcard-mcp"] } } }
Tools
| tool | what it answers |
|---|---|
best_card | which of the given cards earns most at a store or category, today, with caveats |
lookup_merchant | how a store is coded (category, merchant type, MCC-trap caveat) |
search_cards | find card ids by name/issuer; verified first, unverified flagged |
card | one card's verified rates, rotating windows, choose-your-category spec |
rotating_calendar | live + upcoming rotating windows and permanent merchant benefits |
Try: "I have the Amex Gold, Freedom Flex and Citi Double Cash. Which one at Costco?"
Parity with the app
src/engine.ts is a port of the iOS app's Swift engine. fixtures/engine_golden.json holds
3,100+ answers produced by the Swift code over the real catalog and merchant directory;
npm test fails if the port disagrees on any of them. Offers (a user's personal bank offers)
are deliberately not part of this server — they live on the phone.
Privacy
The hosted server logs request counts only. No identifiers, no cookies, no storage. Full policy: https://rightcard.ai/privacy
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