How to Use the Heroku (PaaS) MCP in Cursor

Q: How does the Heroku (PaaS) MCP Server work with Cursor's agent?

You configure the MCP server in your project's .cursor/mcp.json file. The agent can then call any Heroku tool, like listdynos, and use the output directly in chat or to edit your code.

Q: Can I use Cursor to create a new Heroku (PaaS) application?

Yes. The createapp tool lets you tell the agent to provision a new application on Heroku directly from the editor. It's great for quickly spinning up review apps.

Q: Is the config for the Heroku (PaaS) MCP Server in Cursor project-specific?

It can be. Placing the .cursor/mcp.json file in your project root scopes the tools to just that project. You can also configure it globally in your user directory for access across all projects.

Q: Is it safe to let Cursor access my Heroku config vars?

The server gives the agent access to listconfigvars, which exposes secrets like DATABASEURL. Security depends on your configuration. By using a project-level .cursor/mcp.json and adding that file to .gitignore, you ensure your API key is never committed to your repository.

Inject live Heroku app status and config variables directly into your code with Cursor.

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Connect Heroku (PaaS) MCP to Cursor

Create your Vinkius account to connect Heroku (PaaS) 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 Heroku (PaaS) with Cursor

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Claude

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Code with Live Heroku Data

Stop mocking API responses or guessing app names. With Cursor, your AI agent can query your live Heroku environment and inject the actual data right into your editor as you work. Ask your agent to `list_apps` to get the correct app ID, then use `get_app_info` to pull its real web URL for an API client you're building. You can even use `list_config_vars` to populate a local `.env` file with the current variables from staging.

Restart Dynos Without Leaving Code

You're debugging a memory leak and see a dyno crash. Don't switch contexts. Just tell the Cursor agent to handle it while you keep working on the fix. Tell the agent to "restart the workers" and it will use `restart_specific_dyno` to target them. If the whole app is unresponsive, you can trigger `restart_all_dynos`. Your agent can also `toggle_maintenance_mode` before you push a big migration.

Cursor: Your Heroku (PaaS) MCP Server Control Plane

Your code editor becomes the command center for your Heroku infrastructure. This is about more than just writing code; it's about managing the environment where that code runs. Spin up a test app for a pull request using `create_app`. Once the PR is merged, tell the agent to clean up and it will use `delete_app` to remove it. You manage the entire app lifecycle from the same place you write the code.

Setup guide

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

.cursor/mcp.json

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

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Common questions about Heroku (PaaS) MCP in Cursor

You configure the MCP server in your project's `.cursor/mcp.json` file. The agent can then call any Heroku tool, like `list_dynos`, and use the output directly in chat or to edit your code.

Yes. The `create_app` tool lets you tell the agent to provision a new application on Heroku directly from the editor. It's great for quickly spinning up review apps.

It can be. Placing the `.cursor/mcp.json` file in your project root scopes the tools to just that project. You can also configure it globally in your user directory for access across all projects.

Use it when you need to know an app's exact region, git URL, or stack image, like `heroku-24`. The agent can fetch this and use it to configure deployment scripts or CI/CD pipelines.

The server gives the agent access to `list_config_vars`, which exposes secrets like `DATABASE_URL`. Security depends on your configuration. By using a project-level `.cursor/mcp.json` and adding that file to `.gitignore`, you ensure your API key is never committed to your repository.

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