heroku-mcp-server

The Heroku Platform MCP Server works on Common Runtime, Cedar Private and Shield Spaces, and Fir Private Spaces.

Prerequisites

Heroku CLI must be installed globally on your system, version 10.8.1 or higher.
- Install or upgrade the Heroku CLI

Deploy on Heroku

Overview

The Heroku Platform MCP Server is a specialized Model Context Protocol (MCP) implementation designed to facilitate seamless interaction between large language models (LLMs) and the Heroku Platform. This server provides a robust set of tools and capabilities that enable LLMs to read, manage, and operate Heroku Platform resources.

Key Features:

Direct interaction with Heroku Platform resources through LLM-driven tools
Secure and authenticated access to Heroku Platform APIs, leveraging the Heroku CLI
Natural language interface for Heroku Platform interactions

Note: The Heroku Platform MCP Server is currently in early development. As we continue to enhance and refine the implementation, the available functionality and tools may evolve. We welcome feedback and contributions to help shape the future of this project.

Note: The Heroku Platform MCP Server requires the Heroku CLI to be installed globally (v10.8.1+). Ensure you have the correct version by running heroku --version.

Authentication

Generate a Heroku authorization token with one of these methods:

Use the Heroku CLI command:
```
  heroku authorizations:create
```
Use an existing token in the CLI
```
  heroku auth:token
```
Copy the token and use it as your HEROKU_API_KEY in the following steps.
In your Heroku Dashboard:
1. Select your avatar, then select Account Settings.
2. Open the Applications tab.
3. Next to Authorizations, click Create authorization.

Configure the Heroku Platform MCP Server

You can configure Claude Desktop, Zed, Cursor, Windsurf and others to work with the Heroku Platform MCP Server.

Claude Desktop

Add this snippet to your claude_desktop_config.json:

{
  "mcpServers": {
    "heroku": {
      "command": "npx",
      "args": ["-y", "@heroku/mcp-server"],
      "env": {
        "HEROKU_API_KEY": ""
      }
    }
  }
}

Zed

Add this snippet to your Zed settings.json:

{
  "context_servers": {
    "heroku": {
      "command": {
        "path": "npx",
        "args": ["-y", "@heroku/mcp-server"],
        "env": {
          "HEROKU_API_KEY": ""
        }
      }
    }
  }
}

Cursor

Note: Both the simple and explicit forms work, but the key should be "heroku" (not "heroku-mcp-server") for maximum compatibility with agent tools.

Add this snippet to your Cursor mcp.json:

Simple form:

{
  "mcpServers": {
    "heroku": {
      "command": "npx -y @heroku/mcp-server",
      "env": {
        "HEROKU_API_KEY": ""
      }
    }
  }
}

Explicit form:

{
  "mcpServers": {
    "heroku": {
      "command": "npx",
      "args": ["-y", "@heroku/mcp-server"],
      "env": {
        "HEROKU_API_KEY": ""
      }
    }
  }
}

Windsurf

Add this snippet to your Windsurf mcp_config.json:

{
  "mcpServers": {
    "heroku": {
      "command": "npx",
      "args": ["-y", "@heroku/mcp-server"],
      "env": {
        "HEROKU_API_KEY": ""
      }
    }
  }
}

Cline

Add this snippet to your Cline config.json:

{
  "mcpServers": {
    "heroku": {
      "command": "npx",
      "args": ["-y", "@heroku/mcp-server"],
      "env": {
        "HEROKU_API_KEY": ""
      }
    }
  }
}

VSCode

Add this snippet to your VSCode settings.json or .vscode/mcp.json:

{
  "mcp": {
    "servers": {
      "heroku": {
        "type": "stdio",
        "command": "npx",
        "args": ["-y", "@heroku/mcp-server"],
        "env": {
          "HEROKU_API_KEY": ""
        }
      }
    }
  }
}

Trae

Add this snippet to your Trae mcp_settings.json:

{
  "mcpServers": {
    "heroku": {
      "command": "npx",
      "args": ["-y", "@heroku/mcp-server"],
      "env": {
        "HEROKU_API_KEY": ""
      }
    }
  }
}

Available Tools

Application Management

list_apps - List all Heroku apps. You can filter apps by personal, collaborator, team, or space.
get_app_info - Get detailed information about an app, including its configuration, dynos, and add-ons.
create_app - Create a new app with customizable settings for region, team, and space.
rename_app - Rename an existing app.
transfer_app - Transfer ownership of an app to another user or team.
deploy_to_heroku - Deploy projects to Heroku with an app.json configuration, supporting team deployments, private spaces, and environment setups.
deploy_one_off_dyno - Execute code or commands in a sandboxed environment on a Heroku one-off dyno. Supports file creation, network access, environment variables, and automatic cleanup. Ideal for running scripts, tests, or temporary workloads.

Process & Dyno Management

ps_list - List all dynos for an app.
ps_scale - Scale the number of dynos up or down, or resize dynos.
ps_restart - Restart specific dynos, process types, or all dynos.

Add-ons

list_addons - List all add-ons for all apps or for a specific app.
get_addon_info - Get detailed information about a specific add-on.
create_addon - Provision a new add-on for an app.

Maintenance & Logs

maintenance_on - Enable maintenance mode for an app.
maintenance_off - Disable maintenance mode for an app.
get_app_logs - View application logs.

Pipeline Management

pipelines_create - Create a new pipeline.
pipelines_promote - Promote apps to the next stage in a pipeline.
pipelines_list - List available pipelines.
pipelines_info - Get detailed pipeline information.

Team & Space Management

list_teams - List teams you belong to.
list_private_spaces - List available spaces.

PostgreSQL Database Management

pg_psql - Execute SQL queries against the Heroku PostgreSQL database.
pg_info - Display detailed database information.
pg_ps - View active queries and execution details.
pg_locks - View database locks and identify blocking transactions.
pg_outliers - Identify resource-intensive queries.
pg_credentials - Manage database credentials and access.
pg_kill - Terminate specific database processes.
pg_maintenance - Show database maintenance information.
pg_backups - Manage database backups and schedules.
pg_upgrade - Upgrade PostgreSQL to a newer version.

Debugging

You can use the MCP inspector or the VS Code Run and Debug function to run and debug the server.

Link the project as a global CLI using npm link from the project root.
Build with npm run build:dev or watch for file changes and build automatically with npm run build:watch.

Use the MCP Inspector

Use the MCP inspector with no breakpoints in the code:

# Breakpoints are not available
npx @modelcontextprotocol/inspector heroku-mcp-server

Alternatively, if you installed the package in a specific directory or are actively developing on the Heroku MCP server:

cd /path/to/servers
npx @modelcontextprotocol/inspector dist/index.js

Use the VS Code Run and Debug Function

Use the VS Code Run and Debug launcher with fully functional breakpoints in the code:

Locate and select the run debug.
Select the configuration labeled "MCP Server Launcher" in the dropdown.
Select the run/debug button.

VS Code / Cursor Debugging Setup

To set up local debugging with breakpoints:

Store your Heroku auth token in the VS Code user settings:
- Open the Command Palette (Cmd/Ctrl + Shift + P).
- Type Preferences: Open User Settings (JSON).
- Add the following snippet:
```
{
  "heroku.mcp.authToken": "your-token-here"
}
```

Create or update .vscode/launch.json:

{
  "version": "0.2.0",
  "configurations": [
    {
      "type": "node",
      "request": "launch",
      "name": "MCP Server Launcher",
      "skipFiles": ["/**"],
      "program": "${workspaceFolder}/node_modules/@modelcontextprotocol/inspector/bin/cli.js",
      "outFiles": ["${workspaceFolder}/**/dist/**/*.js"],
      "env": {
        "HEROKU_API_KEY": "${config:heroku.mcp.authToken}",
        "DEBUG": "true"
      },
      "args": ["heroku-mcp-server"],
      "sourceMaps": true,
      "console": "integratedTerminal",
      "internalConsoleOptions": "neverOpen",
      "preLaunchTask": "npm: build:watch"
    },
    {
      "type": "node",
      "request": "attach",
      "name": "Attach to Debug Hook Process",
      "port": 9332,
      "skipFiles": ["/**"],
      "sourceMaps": true,
      "outFiles": ["${workspaceFolder}/dist/**/*.js"]
    },
    {
      "type": "node",
      "request": "attach",
      "name": "Attach to REPL Process",
      "port": 9333,
      "skipFiles": ["/**"],
      "sourceMaps": true,
      "outFiles": ["${workspaceFolder}/dist/**/*.js"]
    }
  ],
  "compounds": [
    {
      "name": "Attach to MCP Server",
      "configurations": ["Attach to Debug Hook Process", "Attach to REPL Process"]
    }
  ]
}

Create .vscode/tasks.json:

{
  "version": "2.0.0",
  "tasks": [
    {
      "type": "npm",
      "script": "build:watch",
      "group": {
        "kind": "build",
        "isDefault": true
      },
      "problemMatcher": ["$tsc"]
    }
  ]
}

(Optional) Set breakpoints in your TypeScript files.
Press F5 or use the Run and Debug sidebar.

Note: the debugger automatically builds your TypeScript files before launching.

Installing via Smithery

To install Heroku Platform MCP Server for Claude Desktop automatically via Smithery:

npx -y @smithery/cli install @heroku/heroku-mcp-server --client claude

Environment Variables

The Heroku Platform MCP Server supports the following environment variables:

`HEROKU_API_KEY`

Your Heroku authorization token. Required for authentication with the Heroku Platform.

`MCP_SERVER_REQUEST_TIMEOUT`

Timeout in milliseconds for command execution. Defaults to 15000 (15 seconds) if not set.

Example configuration with custom timeout:

{
  "mcpServers": {
    "heroku": {
      "command": "npx",
      "args": ["-y", "@heroku/mcp-server"],
      "env": {
        "HEROKU_API_KEY": "",
        "MCP_SERVER_REQUEST_TIMEOUT": "30000"
      }
    }
  }
}