How to Use the Assertible MCP in Cursor

Q: How do I run Assertible test suites directly inside Cursor?

Configure the MCP server in your .cursor/mcp.json file. Once active, ask the Cursor agent to execute runservicetests to verify your endpoints.

Q: Can Cursor automatically sync my API specs to Assertible?

Yes, your agent can run syncspecification whenever you modify your spec files. Ensure your ASSERTIBLESYNCTOKEN is set in your environment configuration.

Q: How do I view Assertible status badges in Cursor?

Ask your agent to call getservicestatusbadge or getteststatusbadge. Cursor renders the markdown badge directly in your chat sidebar.

Q: Does Assertible support deployment tracking within Cursor?

Yes, you can execute createdeployment inside Cursor to log a new release. This immediately kicks off your Assertible tests against the new deployment.

Generate code that passes Assertible API tests using Cursor agent mode to run live test suites.

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Connect Assertible MCP to Cursor

Create your Vinkius account to connect Assertible 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 Assertible with Cursor

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Test live code changes using the Assertible MCP Server

`run_service_tests` executes your remote API assertions directly from the Cursor terminal interface. Your agent triggers the suite the moment you save a file. When an assertion fails, Cursor reads the error logs. Your agent then uses `run_specific_test` to pinpoint the failing route, helping you fix the exact line of code.

Sync OpenAPI specs directly from your codebase

`sync_specification` pushes your updated Swagger or OpenAPI files to Assertible as you write code in Cursor. Your agent detects changes in your schema files and updates Assertible automatically. This prevents your tests from drifting from your actual code. You maintain accurate API assertions without manual uploads or leaving your editor.

Validate JSON payloads inside Cursor editor files

`validate_json` checks your mock payloads against Draft 4 JSON schemas inside your active editor tabs. Your agent verifies your test data before you commit it. This tool processes validation checks directly in the editor, without requiring full MCP server authorization.

Setup guide

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

.cursor/mcp.json

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

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Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Assertible. 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 Assertible MCP in Cursor

Configure the MCP server in your `.cursor/mcp.json` file. Once active, ask the Cursor agent to execute `run_service_tests` to verify your endpoints.

Yes, your agent can run `sync_specification` whenever you modify your spec files. Ensure your `ASSERTIBLE_SYNC_TOKEN` is set in your environment configuration.

Ask your agent to call `get_service_status_badge` or `get_test_status_badge`. Cursor renders the markdown badge directly in your chat sidebar.

Yes, you can execute `create_deployment` inside Cursor to log a new release. This immediately kicks off your Assertible tests against the new deployment.

Your deployment tokens and test status SVG badges are handled through secure local environment variables. The MCP environment ensures your API payloads never leak to third-party endpoints.

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