How to Use the API Design Prover MCP in VS Code Copilot

Standardize API design rules across your entire team using VS Code Copilot and this validation server.

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Connect API Design Prover MCP to VS Code Copilot

Create your Vinkius account to connect API Design Prover to VS Code Copilot 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 API Design Prover with VS Code Copilot

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Commit API Design Prover rules to your repo

Configuring the `validate_api_design` tool in VS Code Copilot lets you standardize API rules across your entire team. Configure this MCP Server in your `.vscode/mcp.json` file so your entire team uses the exact same validation rules in Copilot. Every developer gets immediate feedback on missing HTTP verbs or bad error structures before pushing code.

Validate RFC 7807 error contracts in Copilot Chat

Using the `validate_api_design` tool inside VS Code Copilot forces the agent to structure every API error with structured machine-readable fields. Calling the validation tool prevents Copilot from writing sloppy try-catch blocks. Your agent must design a compliant error contract before it can generate any backend code.

Automated response envelope checks in VS Code

Running the `validate_api_design` tool inside VS Code Copilot ensures your agent designs consistent payload wrappers for all your REST endpoints. The MCP validation tool rejects any API design in VS Code that lacks a defined envelope. Copilot reads the validation failure and corrects the payload shape instantly.

Setup guide

Set up API Design Prover MCP in VS Code Copilot

Prerequisites

VS Code 1.99 or later with GitHub Copilot extension
Active Vinkius subscription with a valid endpoint token

1

Open MCP configuration

Open the Command Palette (Cmd+Shift+P / Ctrl+Shift+P) and run "MCP: Add Server". Select HTTP (Streamable) as the server type. VS Code will create .vscode/mcp.json in your workspace.
2

Add the API Design Prover MCP

Paste the JSON snippet shown on the right into your .vscode/mcp.json. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Switch to Agent mode

Open Copilot Chat (Cmd+Shift+I / Ctrl+Shift+I) and switch to Agent mode using the dropdown. MCP tools are only available in Agent mode — they do not appear in Edit or Ask modes.
4

Verify the connection

In the Copilot Chat input, type # to list available tools. You should see the API Design Prover tools listed. Try asking: "List my recent API Design Prover transactions" and Copilot will invoke them automatically.

.vscode/mcp.json

{
  "mcpServers": {
    "api-design-prover-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 API Design Prover. 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 API Design Prover MCP in VS Code Copilot

You commit the MCP Server configuration to your repository in `.vscode/mcp.json`. Every developer with VS Code Copilot gets automatic access to the validation tool.

Yes. The tool runs securely within your team's existing VS Code Copilot environment, allowing enterprise agents to validate design contracts during local development.

Yes. If the validation tool rejects an API draft, the validation error blocks Copilot from proceeding with code generation until the schema complies with your rules.

It analyzes your list endpoints to ensure they define a clear pagination strategy with a maximum page size. It rejects any unbounded list routes.

The MCP server operates under a zero-trust model where all API schemas are processed in memory locally. No contract designs or endpoint structures are saved or transmitted to external servers.

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