Eulerian Marketing Platform MCP Server

A Model Context Protocol (MCP) proxy server that bridges AI assistants (Claude Desktop, Gemini CLI, etc ...) to a remote Eulerian Marketing Platform MCP server. This proxy handles authentication, request forwarding, and provides a local MCP interface to your remote Eulerian instance.

How It Works

This server acts as a transparent proxy between local MCP clients and your remote Eulerian Marketing Platform server:

┌─────────────┐        ┌──────────────────┐        ┌────────────────┐
│   Claude    │ ◄─────►│  This MCP Proxy  │◄─────► │ Remote Eulerian│
│   Desktop   │  stdio │  (Local)         │  HTTP  │  MCP Server    │
└─────────────┘        └──────────────────┘        └────────────────┘

The proxy:

• 🔐 Handles authentication with your remote Eulerian server
• 📡 Forwards MCP requests via HTTP with Bearer token
• 🛠️ Exposes remote tools and resources to AI assistants
• 📝 Provides comprehensive logging for debugging
• ⚡ Uses async HTTP for better performance

Warning

Given the rapid pace of evolution of protocols, implementations and new features coming out, the MCP may or may not be compatible with your suite of tools. Please fill in an issue so that we can check it.

Features

• 🔌 Proxy Architecture: Bridges local MCP clients to remote Eulerian MCP server via HTTP
• 🔐 Secure Authentication: Uses Bearer token authentication for remote server access
• 🌐 Cross-platform support: Works on Windows, Linux, and macOS
• 🤖 Multiple AI clients: Compatible with Claude Desktop and Gemini CLI
• 📝 Comprehensive Logging: Logs all requests/responses for debugging
• ⚡ Async HTTP: Non-blocking requests using httpx for better performance
• 🛠️ Tool Discovery: Automatically discovers and exposes remote tools
• ⏱️ Configurable Timeouts: Adjustable request timeouts

Prerequisites

• Python 3.10 or higher - Install Python
• Access to a remote Eulerian Marketing Platform MCP server (HTTP endpoint)
• Valid authentication token for the remote server
• One of the following AI clients:
• Claude Desktop (Windows, macOS, Linux)
• Gemini CLI
• Codex CLI (macOS, Linux)
• Claude Code (macOS, Linux)
• Cursor (Windows, macOS, Linux)
• VS Code with GitHub Copilot (Windows, macOS, Linux)

Available Tools

All API Endpoints supported by the Eulerian API can be queried through the current MCP.

Installation

Quick Start (Recommended)

The easiest way to use this MCP server is with pip.

Make sure pip is installed : python -m pip install --upgrade pip

Install via pip

If you prefer to install the package globally:

pip install eulerian-marketing-platform

Alternative: Install from source

git clone https://github.com/EulerianTechnologies/eulerian-marketing-platform-mcp.git
cd eulerian-marketing-platform-mcp
pip install -e .

Configuration

Required Environment Variables

• EMP_API_ENDPOINT: Your remote Eulerian Marketing Platform MCP server URL (HTTP endpoint)
• Example: https://dem.api.eulerian.com/mcp
• EMP_API_TOKEN: Your authentication token for the remote server, it is the one linked to your Eulerian account.

Optional Environment Variables

• EMP_LOG_FILE: Log file location (default: /tmp/eulerian-mcp-proxy.log)
• EMP_TIMEOUT: Request timeout in seconds (default: 300)

Example .env file

Create a .env.example file in your project:

# Required
EMP_API_ENDPOINT=https://your-eulerian-instance.com/mcp
EMP_API_TOKEN=your_authentication_token_here

# Optional
EMP_LOG_FILE=/var/log/eulerian-mcp-proxy.log
EMP_TIMEOUT=600

Setup Instructions by Client

1. Claude Desktop

Two installation methods are available. The DXT extension is the easiest — no terminal required.

#### Option A: One-click DXT Extension (Recommended)

Desktop Extensions (DXT) let you install MCP servers in Claude Desktop with a single double-click, without editing JSON config files.

Requirements: Python 3.10+ with the package installed:

pip install eulerian-marketing-platform

Install steps:

1. Download the latest .dxt file from the releases page
2. Double-click the .dxt file — Claude Desktop opens an installation dialog
3. Enter your API Endpoint and API Token when prompted
4. Click Install — the server is ready immediately

That's it. No pip install, no config file editing, no restart required.

To update: download the new .dxt and double-click it again.

#### Option B: Manual JSON configuration

Claude Desktop supports local MCP servers via stdio transport.

#### Configuration File Locations

• Windows: %APPDATA%\Claude\claude_desktop_config.json
• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

#### Setup Steps

1. Open Claude Desktop
2. Access configuration:

• Click Claude menu → Settings → Developer → Edit Config
• Or manually edit the JSON file at the location above

1. Add the server configuration:

{
  "mcpServers": {
    "eulerian-marketing-platform": {
      "command": "python",
      "args": ["-m", "eulerian_marketing_platform.server"],
      "env": {
        "EMP_API_ENDPOINT": "https://your-eulerian-instance.com/mcp",
        "EMP_API_TOKEN": "your_authentication_token_here"
      }
    }
  }
}

1. Restart Claude Desktop

1. Verify the connection:

• Look for a hammer/tools icon (🔨) in the bottom-right corner
• Click it to see available Eulerian tools
• Ask Claude: "What Eulerian Marketing Platform tools do you have access to?"

#### Platform-Specific Notes

Windows:

• Use the Run dialog (Win + R) and enter %APPDATA%\Claude to quickly navigate to the config directory
• If using a local installation, ensure Python is in your PATH

Linux:

• The config directory may not exist initially - create it with: mkdir -p ~/.config/Claude

macOS:

• Access the config via Finder: Cmd + Shift + G → ~/Library/Application Support/Claude/

2. Gemini CLI

Gemini CLI supports MCP servers through its configuration file.

#### Prerequisites

Install Gemini CLI if you haven't already:

npm install -g @google/gemini-cli

#### Configuration File Location

~/.gemini/settings.json

#### Setup Steps

1. Create or edit the settings file:

# Create the directory if it doesn't exist
mkdir -p ~/.gemini

# Edit the settings file
nano ~/.gemini/settings.json

1. Add the MCP server configuration:

{
  "mcpServers": {
    "eulerian-marketing-platform": {
      "command": "python",
      "args": ["-m", "eulerian_marketing_platform.server"],
      "env": {
        "EMP_API_ENDPOINT": "https://your-eulerian-instance.com/mcp",
        "EMP_API_TOKEN": "your_authentication_token_here"
      }
    }
  }
}

1. Start Gemini CLI:

gemini

1. Verify the connection:

• Use the /mcp command to see connected servers
• Ask Gemini: "What tools are available from the Eulerian Marketing Platform?"

#### Platform-Specific Notes

Windows:

• Settings file location: %USERPROFILE%\.gemini\settings.json
• Create directory: mkdir %USERPROFILE%\.gemini

Linux/macOS:

• Standard location: ~/.gemini/settings.json

3. Codex CLI

Codex CLI supports MCP servers configured in ~/.codex/config.toml. The configuration is shared between the CLI and the Codex IDE extension (VS Code).

#### Prerequisites

• Node.js 18+ and npm
• Codex CLI installed: npm install -g @openai/codex
• Python 3.10+ with this package installed (pip install eulerian-marketing-platform)
• A ChatGPT Plus, Pro, Team, Edu, or Enterprise subscription (or an OpenAI API key)

#### Option A: Using the codex mcp add command (easiest)

Run the following command to register the Eulerian MCP server:

codex mcp add eulerian-marketing-platform \
  --env EMP_API_ENDPOINT=https://your-eulerian-instance.com/mcp \
  --env EMP_API_TOKEN=your_authentication_token_here \
  -- python -m eulerian_marketing_platform.server

That's it — Codex will update ~/.codex/config.toml for you.

#### Option B: Edit config.toml manually

Open (or create) ~/.codex/config.toml and add the following:

[mcp_servers.eulerian-marketing-platform]
command = "python"
args = ["-m", "eulerian_marketing_platform.server"]
tool_timeout_sec = 300

[mcp_servers.eulerian-marketing-platform.env]
EMP_API_ENDPOINT = "https://your-eulerian-instance.com/mcp"
EMP_API_TOKEN = "your_authentication_token_here"

Note: The section name must use mcp_servers (with an underscore). Using mcp-servers or any other variant will silently fail.

#### Option C: Project-scoped configuration

To limit the MCP server to a specific project, create a .codex/config.toml file at the root of that project with the same content as above. The project must be marked as trusted by Codex.

#### Verify the connection

1. Launch Codex in your terminal:

   codex

1. Type /mcp in the interactive TUI to see all connected MCP servers.
2. Confirm that eulerian-marketing-platform appears in the list with its available tools.
3. Try asking:

   What Eulerian Marketing Platform tools do you have access to?

#### Managing the server

# List all configured MCP servers
codex mcp

# Remove the server
codex mcp remove eulerian-marketing-platform

#### Troubleshooting (Codex CLI)

• Server not appearing in `/mcp`: Verify that the [mcp_servers.eulerian-marketing-platform] section is present in ~/.codex/config.toml and that the TOML syntax is valid.
• Timeout errors: Increase tool_timeout_sec in config.toml (default is 60 seconds). Eulerian queries can take longer, so 300 is recommended.
• Authentication errors: Double-check that EMP_API_ENDPOINT and EMP_API_TOKEN are correct.
• Python not found: Ensure the python command resolves to Python 3.10+. You may need to use python3 instead:

  command = "python3"

• Package not found: Make sure eulerian-marketing-platform is installed in the Python environment that Codex will invoke. Run python -m eulerian_marketing_platform.server manually to confirm it works.
• Check logs: Monitor the proxy logs for detailed error information:

  tail -f /tmp/eulerian-mcp-proxy.log

4. Claude Code

Claude Code is Anthropic's terminal-based coding agent. It supports MCP servers configured via the claude mcp CLI command or by editing ~/.claude.json.

#### Prerequisites

• Node.js 18+ and npm
• Claude Code installed: npm install -g @anthropic-ai/claude-code
• Python 3.10+ with this package installed (pip install eulerian-marketing-platform)
• An Anthropic API key or Claude subscription

#### Option A: Using the claude mcp add command (easiest)

claude mcp add eulerian-marketing-platform \
  -e EMP_API_ENDPOINT=https://your-eulerian-instance.com/mcp \
  -e EMP_API_TOKEN=your_authentication_token_here \
  -- python -m eulerian_marketing_platform.server

By default this adds the server with local scope (current project only). To make it available in all projects, add the -s user flag:

claude mcp add -s user eulerian-marketing-platform \
  -e EMP_API_ENDPOINT=https://your-eulerian-instance.com/mcp \
  -e EMP_API_TOKEN=your_authentication_token_here \
  -- python -m eulerian_marketing_platform.server

#### Option B: Edit ~/.claude.json manually

Open ~/.claude.json and add the server under the mcpServers key:

{
  "mcpServers": {
    "eulerian-marketing-platform": {
      "type": "stdio",
      "command": "python",
      "args": ["-m", "eulerian_marketing_platform.server"],
      "env": {
        "EMP_API_ENDPOINT": "https://your-eulerian-instance.com/mcp",
        "EMP_API_TOKEN": "your_authentication_token_here"
      }
    }
  }
}

#### Verify the connection

1. Launch Claude Code:

   claude

1. Type /mcp to see the status of all connected MCP servers.
2. Confirm that eulerian-marketing-platform appears and shows as connected.
3. Try asking:

   What Eulerian Marketing Platform tools do you have access to?

#### Managing the server

# List all configured MCP servers
claude mcp list

# Get details for a specific server
claude mcp get eulerian-marketing-platform

# Remove the server
claude mcp remove eulerian-marketing-platform

#### Troubleshooting (Claude Code)

• Server not appearing in `/mcp`: Run claude mcp list to confirm it is registered. Check ~/.claude.json for JSON syntax errors.
• Python not found: Ensure the python command resolves to Python 3.10+. You may need to use python3 instead.
• Package not found: Make sure eulerian-marketing-platform is installed in the Python environment that Claude Code will invoke.
• Debug mode: Launch Claude Code with verbose MCP logging:

  claude --mcp-debug

• Check logs: Monitor the proxy logs for detailed error information:

  tail -f /tmp/eulerian-mcp-proxy.log

5. Cursor

Cursor is an AI-powered code editor with built-in MCP support.

#### Prerequisites

• Cursor installed (download from cursor.com)
• Python 3.10+ with this package installed (pip install eulerian-marketing-platform)

#### Configuration File Location

• Global: ~/.cursor/mcp.json
• Project-scoped: .cursor/mcp.json in your project root

#### Setup Steps

1. Open (or create) the configuration file:

# Global configuration
mkdir -p ~/.cursor
nano ~/.cursor/mcp.json

1. Add the MCP server configuration:

{
  "mcpServers": {
    "eulerian-marketing-platform": {
      "command": "python",
      "args": ["-m", "eulerian_marketing_platform.server"],
      "env": {
        "EMP_API_ENDPOINT": "https://your-eulerian-instance.com/mcp",
        "EMP_API_TOKEN": "your_authentication_token_here"
      }
    }
  }
}

1. Restart Cursor to load the new configuration.

1. Verify the connection:

• Open Cursor Settings → Tools & Integrations → MCP Servers
• Confirm that eulerian-marketing-platform appears and shows a green status
• Switch to Agent mode in the Copilot pane
• Ask: "What Eulerian Marketing Platform tools do you have access to?"

#### Platform-Specific Notes

Windows:

• Global config file: %USERPROFILE%\.cursor\mcp.json
• If python is not in your PATH, use the full path to the Python executable in the command field.

macOS/Linux:

• Standard location: ~/.cursor/mcp.json

#### Troubleshooting (Cursor)

• Server not appearing: Verify that ~/.cursor/mcp.json contains valid JSON. Restart Cursor after any config change.
• Tools not available: Make sure you are in Agent mode (not Ask mode) in the Cursor chat panel.
• Python not found: Ensure the python command resolves to Python 3.10+. You may need to use python3 or a full path.
• Check logs: Monitor the proxy logs:

  tail -f /tmp/eulerian-mcp-proxy.log

6. VS Code / GitHub Copilot

Visual Studio Code supports MCP servers through GitHub Copilot's Agent mode. MCP requires VS Code 1.101 or later.

#### Prerequisites

• VS Code 1.101+ with the GitHub Copilot extension
• Python 3.10+ with this package installed (pip install eulerian-marketing-platform)
• A GitHub Copilot subscription

#### Configuration File Locations

• Workspace: .vscode/mcp.json in your project root (recommended)
• User/Global: accessible via the command MCP: Open User Configuration

Note: VS Code uses a "servers" key (not "mcpServers") inside mcp.json.

#### Setup Steps

1. Create the workspace configuration file:

mkdir -p .vscode
nano .vscode/mcp.json

1. Add the MCP server configuration:

{
  "servers": {
    "eulerian-marketing-platform": {
      "type": "stdio",
      "command": "python",
      "args": ["-m", "eulerian_marketing_platform.server"],
      "env": {
        "EMP_API_ENDPOINT": "https://your-eulerian-instance.com/mcp",
        "EMP_API_TOKEN": "your_authentication_token_here"
      }
    }
  }
}

Alternatively, to make the server available globally across all workspaces, add the configuration to your User Settings (JSON) (Ctrl+Shift+P → Preferences: Open User Settings (JSON)):

{
  "mcp": {
    "servers": {
      "eulerian-marketing-platform": {
        "type": "stdio",
        "command": "python",
        "args": ["-m", "eulerian_marketing_platform.server"],
        "env": {
          "EMP_API_ENDPOINT": "https://your-eulerian-instance.com/mcp",
          "EMP_API_TOKEN": "your_authentication_token_here"
        }
      }
    }
  }
}

1. Start the MCP server:

• Open the .vscode/mcp.json file in the editor
• Click the Start button that appears above the server definition (code lens)
• Or use the Command Palette: MCP: List Servers → select the server → Start

1. Verify the connection:

• Switch to Agent mode in the GitHub Copilot Chat panel (toggle located near the chat input)
• Click the Tools button (🔧) in the Copilot pane to see available Eulerian tools
• Ask: "What Eulerian Marketing Platform tools do you have access to?"

#### Using input variables for secrets

To avoid hardcoding your token, you can use VS Code input variables:

{
  "inputs": [
    {
      "type": "promptString",
      "id": "empToken",
      "description": "Eulerian Marketing Platform API Token",
      "password": true
    }
  ],
  "servers": {
    "eulerian-marketing-platform": {
      "type": "stdio",
      "command": "python",
      "args": ["-m", "eulerian_marketing_platform.server"],
      "env": {
        "EMP_API_ENDPOINT": "https://your-eulerian-instance.com/mcp",
        "EMP_API_TOKEN": "${input:empToken}"
      }
    }
  }
}

VS Code will prompt you for the token when the server starts.

#### Troubleshooting (VS Code)

• MCP not available: Ensure you are running VS Code 1.101 or later and have the GitHub Copilot extension installed and enabled.
• Tools not appearing: MCP tools only work in Agent mode. Toggle to Agent mode in the Copilot Chat panel.
• Start button not showing: The code lens (Start button) only appears if the .vscode folder is at the root of your workspace.
• Python not found: Ensure the python command resolves to Python 3.10+. You may need to use python3 or a full path.
• Check logs: Monitor the proxy logs:

  tail -f /tmp/eulerian-mcp-proxy.log

Usage Examples

Once configured with any client, you can interact with your remote Eulerian Marketing Platform:

User: "What tools are available from Eulerian?"
→ Proxy calls list_remote_tools() and returns all available tools

User: "Call the update_goal tool"
→ Proxy forwards to remote server and update goal settings

User: "Show me campaign details for CAMP-12345"
→ Claude uses call_eulerian_tool() to fetch specific campaign

User: "What resources are available?"
→ Proxy lists all available data sources

The AI assistant will automatically use the appropriate proxy tools to fulfill your requests.

Viewing Logs

Monitor proxy activity in real-time:

# Default log location
tail -f /tmp/eulerian-mcp-proxy.log

# Custom log location
tail -f /var/log/eulerian-mcp-proxy.log

You'll see detailed logging of:

• Requests to the remote server
• HTTP responses and status codes
• Tool calls and results
• Errors and warnings

Troubleshooting

Common Issues

#### "EMP_API_ENDPOINT environment variable is required"

• Solution: Ensure you've set the EMP_API_ENDPOINT in your configuration
• Check that there are no typos in the environment variable name

#### "EMP_API_TOKEN environment variable is required"

• Solution: Ensure you've set the EMP_API_TOKEN in your configuration
• Verify your token is valid and hasn't expired

#### Server not appearing in Claude Desktop

• Solution:
• Restart Claude Desktop completely
• Check the configuration file for JSON syntax errors
• Verify the file path in your config is correct
• Look at logs:
• macOS: ~/Library/Logs/Claude/mcp-server-*.log
• Windows: %APPDATA%\Claude\logs\

#### Tools not showing in Gemini CLI

• Solution:
• Use /mcp command to check server status
• Verify the settings.json is valid JSON
• Restart Gemini CLI

Debug Mode

For detailed debugging:

# Run with MCP Inspector
npx @modelcontextprotocol/inspector uvx eulerian-marketing-platform

# Or with environment variables
EMP_API_ENDPOINT=your_endpoint EMP_API_TOKEN=your_token uvx eulerian-marketing-platform

Development

Running Tests

# Install development dependencies
pip install -e ".[dev]"

# Run tests
pytest

# Run with coverage
pytest --cov=eulerian_marketing_platform

Building from Source

# Clone the repository
git clone https://github.com/EulerianTechnologies/eulerian-marketing-platform-mcp.git
cd eulerian-marketing-platform-mcp

# Install in development mode
pip install -e .

# Build Python distribution (wheel + tarball)
pip install build
python -m build

# Build DXT extension for Claude Desktop
npx @anthropic-ai/dxt pack .
# → eulerian-marketing-platform-mcp.dxt

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

1. Fork the repository
2. Create your feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

License

This project is licensed under the MIT License - see the LICENSE file for details.

Support

• Issues: https://github.com/EulerianTechnologies/eulerian-marketing-platform-mcp/issues
• Documentation: https://github.com/EulerianTechnologies/eulerian-marketing-platform-mcp#readme
• Eulerian Technologies: https://www.eulerian.com

MCP server for MCP Registry

mcp-name: io.github.matjmat/eulerian-marketing-platform-mcp

Changelog

0.2.9

• Add manifest.json for Claude Desktop DXT extension support
• DXT package: one-click install with credential prompts, no JSON config editing

0.2.8

• fixes for proxy disconnection
• remove unnecessary logging

0.2.3

• fixes disconnection issue with notifications

0.2.0

• Move to full Proxy mode
• Remove instructions for uvx deployment
• Remove instructions for Mistral integration (too complex)

0.1.0 (Initial Release)

• Initial MCP server implementation
• Support for Claude Desktop, Gemini CLI
• Cross-platform support (Windows, Linux, macOS)
• Environment-based configuration

Note: Replace all placeholder URLs and tokens with your actual Eulerian Marketing Platform credentials before use.