How to Use the Mastercard MCP in Cursor

Q: Can Cursor use Mastercard to generate mock merchant data?

You do not need mock data. The nearbylocations tool pulls actual points of interest and payment infrastructure based on real coordinates. The Agent injects these live responses directly into your test files.

Q: Does the Agent know the difference between the two BIN lookup tools?

Yes. It will use binlookup for standard GET requests. If your prompt mentions handling sensitive data or strict compliance rules, the Agent switches to binlookuppost.

Give Cursor Agent access to the Mastercard MCP Server to test payment logic, pull BIN data, and build fraud features without mock data.

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Connect Mastercard MCP to Cursor

Create your Vinkius account to connect Mastercard to Cursor and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Mastercard with Cursor

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Build payment flows with real Mastercard data

The `validate_account` tool pings the Mastercard gateway to confirm if a card number is active. When you ask Cursor to build an onboarding flow, the Agent can actually test the validation logic against a live endpoint instead of writing stubbed responses. It returns the exact JSON schema, including the VALID or INVALID status and the issuer details. If you are building a routing engine that depends on card types, `bin_lookup` pulls the exact bank name, currency, and product flags from the first six digits. Cursor uses this live response to write accurate TypeScript interfaces and error handling logic for your specific use case.

Inject live merchant coordinates into your code

The `search_places` tool returns merchant locations, complete with Apple Pay and Google Pay acceptance flags, based on GPS coordinates. You tell Cursor Agent to populate a map component, and it calls the tool to grab real businesses within a specific kilometer radius. It drops the actual latitude and longitude data straight into your state management code. If your application groups businesses by industry, the Agent can call `merchant_industry_codes` to pull the top-level hierarchy. It then uses `merchant_category_codes` to map specific 4-digit IDs to those industries, generating the exact lookup tables your database needs.

Test fraud reporting logic via this MCP Server

The `submit_fraud_report` tool sends confirmed fraud data to the network using specific ISO 4217 currency codes and two-digit fraud types. Cursor Agent can execute this tool to verify your request signing and payload structure before you deploy. You pass the transaction ID and amount, and the Agent confirms if the API accepts the format. This eliminates the guesswork of building compliance integrations. Instead of reading the API docs and hoping you got the date format right, the Agent runs the tool, catches any validation errors from the server, and rewrites your function until the payload succeeds.

Setup guide

Set up Mastercard MCP in Cursor

Prerequisites

Cursor installed (macOS, Windows, or Linux)
Active Vinkius subscription with a valid endpoint token

1

Open MCP Settings

Go to Cursor Settings → MCP or open the Command Palette (Cmd+Shift+P / Ctrl+Shift+P) and search for "MCP: Add Server".
2

Add the Mastercard MCP

Cursor will create or open .cursor/mcp.json in your project root. Paste the JSON snippet on the right. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Enable Agent mode

Open Composer (Cmd+I / Ctrl+I) and switch to Agent mode using the dropdown at the top. MCP tools are only available in Agent mode.
4

Verify the connection

Ask Cursor something like "List my recent Mastercard transactions." If the MCP tools are loaded correctly, Cursor will call the Mastercard tools automatically. You can also check Settings → MCP for a green status indicator.

.cursor/mcp.json

{
  "mcpServers": {
    "mastercard-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Mastercard. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about Mastercard MCP in Cursor

Create an mcp.json file in your project root directory. Add the Vinkius URL and your endpoint token. Switch your chat to Agent mode, and the editor will automatically read the available endpoints.

You do not need mock data. The `nearby_locations` tool pulls actual points of interest and payment infrastructure based on real coordinates. The Agent injects these live responses directly into your test files.

You likely provided a suspected fraud case or missed a required field. The tool demands exact string matches for the fraud type code, and it only accepts confirmed fraud events.

Yes. It will use `bin_lookup` for standard GET requests. If your prompt mentions handling sensitive data or strict compliance rules, the Agent switches to `bin_lookup_post`.

This MCP server transmits transaction amounts and exact GPS coordinates to the API. We wrap this traffic in a zero-trust V8 isolate that processes the payload and immediately terminates. Your endpoint token authenticates the session, ensuring no raw credentials sit in your local environment variables while you code.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.

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