How to Use the YesNo MCP in Cursor

Q: Can I use YesNo with Cursor for unit testing agent behavior?

Yes. You can call getdecision within your test scripts to simulate random input variables, ensuring your code handles 'yes', 'no', and 'maybe' outcomes gracefully.

When coding with Cursor, use YesNo to inject random decisions into live code blocks instantly.

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Connect YesNo MCP to Cursor

Create your Vinkius account to connect YesNo 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 YesNo with Cursor

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Injecting Random Decisions in Code

The `get_decision` tool provides a function call that returns a random yes/no/maybe answer, along with a GIF. This is crucial when your agent needs to simulate arbitrary choices during coding. It lets you inject live decision context into the code block you're actively writing in Cursor.

MCP Server for Logic Flow Testing

You can execute `get_decision` directly from your project scope using the MCP Server. This tool returns a random yes/no/maybe decision, which is perfect for testing logic branches that need an unpredictable input. Don't waste time stubbing out every possible path; just call this simple endpoint.

Testing Agent Decision Paths

The `get_decision` tool gives you a clean, random yes/no/maybe outcome. This lets your agent mode in Cursor test branching logic without needing mock data or complex setups. It’s the easiest way to force an unpredictable variable into the code flow while maintaining development context.

Setup guide

Set up YesNo 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 YesNo 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 YesNo transactions." If the MCP tools are loaded correctly, Cursor will call the YesNo tools automatically. You can also check Settings → MCP for a green status indicator.

.cursor/mcp.json

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

Get your connection token →

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Common questions about YesNo MCP in Cursor

Yes. You can call `get_decision` within your test scripts to simulate random input variables, ensuring your code handles 'yes', 'no', and 'maybe' outcomes gracefully.

It provides a simple string ('yes', 'no', or 'maybe') along with an associated GIF, which your agent can then use as live context in its generated code.

Nah. It's a randomizer. If you need actual data validation or specific outcomes, use an API call instead. This is only for simulating chance.

It provides simple, unpredictable inputs that allow your AI client to generate robust code structures that account for random decision points.

The server only deals with generating and returning basic strings ('yes', 'no', or 'maybe'). It doesn't touch any project-specific variables or files.

Use it with your favorite AI tools

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

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