Plugged.in

by VeriTeknik

132 stars

234 downloads

Not rated

GitHub

About

A comprehensive proxy that combines multiple MCP servers into a single MCP. It provides discovery and management of tools, prompts, resources, and templates across servers, plus a playground for debugging when building MCP servers.

Details

Author: VeriTeknik
GitHub stars: 132
Downloads: 234
Categories: Developer Tools, Other

- Built-in AI Playground to test MCPs without any client setup
- Universal MCP compatibility with Claude, Cline, Cursor, and more
- Multi-server support for STDIO, SSE, and Streamable HTTP servers
- Dual transport modes: STDIO (default) or Streamable HTTP
- RAG v2 document search with AI attribution and filtering
- Persistent clipboard memory system (set/get/push/pop operations)
- Notifications with optional email delivery and tracking
- Multi‑workspace layer to switch MCP configurations with one click

Setting up with Highlight

This MCP is not yet compatible with Highlight’s one-click setup. However, you can still use it with Highlight by following these steps:

Download and install Highlight from highlightai.com/download
Navigate to the plugins tab and select "Add Custom Plugin"
Configure the plugin with the settings below

Plugin Name Plugged.in

Command (node, npx, python, etc.)

Please refer to the README for specific instructions on how to obtain API keys or other required environment variables.
Enable "Start Automatically" if you want the plugin to start when Highlight launches

Setting up with Cursor

Open Cursor's settings
Navigate to the MCP section
Click "Add new Global MCP server"
Copy and paste the configuration below based on your operating system

JSON

{
    "mcpServers": {
        "plugged.in": {
            "pluggedin-mcp-proxy": {
                "command": "npx",
                "args": [
                    "-y",
                    "@pluggedin/pluggedin-mcp-proxy@latest",
                    "--pluggedin-api-key",
                    "YOUR_API_KEY"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "plugged.in": {
            "pluggedin-mcp-proxy": {
                "command": "npx",
                "args": [
                    "-y",
                    "@pluggedin/pluggedin-mcp-proxy@latest",
                    "--pluggedin-api-key",
                    "YOUR_API_KEY"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "plugged.in": {
            "pluggedin-mcp-proxy": {
                "command": "npx",
                "args": [
                    "-y",
                    "@pluggedin/pluggedin-mcp-proxy@latest",
                    "--pluggedin-api-key",
                    "YOUR_API_KEY"
                ]
            }
        }
    }
}

Setting up with Claude Desktop

Open Claude Desktop's settings
Go to the Integrations tab
Click "Add MCP Server"
Use the configuration below based on your operating system

Note: Make sure Claude Desktop is running before attempting to connect.

JSON

{
    "mcpServers": {
        "plugged.in": {
            "pluggedin-mcp-proxy": {
                "command": "npx",
                "args": [
                    "-y",
                    "@pluggedin/pluggedin-mcp-proxy@latest",
                    "--pluggedin-api-key",
                    "YOUR_API_KEY"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "plugged.in": {
            "pluggedin-mcp-proxy": {
                "command": "npx",
                "args": [
                    "-y",
                    "@pluggedin/pluggedin-mcp-proxy@latest",
                    "--pluggedin-api-key",
                    "YOUR_API_KEY"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "plugged.in": {
            "pluggedin-mcp-proxy": {
                "command": "npx",
                "args": [
                    "-y",
                    "@pluggedin/pluggedin-mcp-proxy@latest",
                    "--pluggedin-api-key",
                    "YOUR_API_KEY"
                ]
            }
        }
    }
}

Setting up with Windsurf

Open Windsurf's preferences
Go to the Integrations section
Click "Add MCP Integration"
Use the configuration below based on your operating system

JSON

{
    "mcpServers": {
        "plugged.in": {
            "pluggedin-mcp-proxy": {
                "command": "npx",
                "args": [
                    "-y",
                    "@pluggedin/pluggedin-mcp-proxy@latest",
                    "--pluggedin-api-key",
                    "YOUR_API_KEY"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "plugged.in": {
            "pluggedin-mcp-proxy": {
                "command": "npx",
                "args": [
                    "-y",
                    "@pluggedin/pluggedin-mcp-proxy@latest",
                    "--pluggedin-api-key",
                    "YOUR_API_KEY"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "plugged.in": {
            "pluggedin-mcp-proxy": {
                "command": "npx",
                "args": [
                    "-y",
                    "@pluggedin/pluggedin-mcp-proxy@latest",
                    "--pluggedin-api-key",
                    "YOUR_API_KEY"
                ]
            }
        }
    }
}

Setting up with Cline

Open Cline's settings
Navigate to the Integrations section
Click "Add MCP Server"
Copy and paste the configuration below based on your operating system

Note: Make sure to restart Cline after adding the configuration.

JSON

{
    "mcpServers": {
        "plugged.in": {
            "pluggedin-mcp-proxy": {
                "command": "npx",
                "args": [
                    "-y",
                    "@pluggedin/pluggedin-mcp-proxy@latest",
                    "--pluggedin-api-key",
                    "YOUR_API_KEY"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "plugged.in": {
            "pluggedin-mcp-proxy": {
                "command": "npx",
                "args": [
                    "-y",
                    "@pluggedin/pluggedin-mcp-proxy@latest",
                    "--pluggedin-api-key",
                    "YOUR_API_KEY"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "plugged.in": {
            "pluggedin-mcp-proxy": {
                "command": "npx",
                "args": [
                    "-y",
                    "@pluggedin/pluggedin-mcp-proxy@latest",
                    "--pluggedin-api-key",
                    "YOUR_API_KEY"
                ]
            }
        }
    }
}

Setting up with Goose

Open Goose's preferences
Go to the Integrations tab
Select "MCP Servers"
Click "Add New Server"
Use the configuration below based on your operating system

JSON

{
    "mcpServers": {
        "plugged.in": {
            "pluggedin-mcp-proxy": {
                "command": "npx",
                "args": [
                    "-y",
                    "@pluggedin/pluggedin-mcp-proxy@latest",
                    "--pluggedin-api-key",
                    "YOUR_API_KEY"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "plugged.in": {
            "pluggedin-mcp-proxy": {
                "command": "npx",
                "args": [
                    "-y",
                    "@pluggedin/pluggedin-mcp-proxy@latest",
                    "--pluggedin-api-key",
                    "YOUR_API_KEY"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "plugged.in": {
            "pluggedin-mcp-proxy": {
                "command": "npx",
                "args": [
                    "-y",
                    "@pluggedin/pluggedin-mcp-proxy@latest",
                    "--pluggedin-api-key",
                    "YOUR_API_KEY"
                ]
            }
        }
    }
}

From the repository

Requires Node.js 18+ and an API key from plugged.in (get at plugged.in/api-keys). Install and run via npx -y @veriteknik/pluggedin-mcp. The proxy runs in STDIO mode by default or can be started as a Streamable HTTP server with optional Bearer token authentication. Configuration is managed through the plugged.in App, not local config files.

`pluggedin_setup`

Get started with Plugged.in MCP - shows setup instructions and API key configuration (no API key required)

`pluggedin_discover_tools`

Triggers discovery of tools (and resources/templates) for configured MCP servers in the Pluggedin App.

`pluggedin_ask_knowledge_base`

Ask questions and get AI-generated answers from your knowledge base. Returns structured JSON with answer, document sources, and metadata.

`pluggedin_create_document`

Create and save AI-generated documents to the user's library in Plugged.in (requires API key)

`pluggedin_list_documents`

List documents with filtering options from the user's library (requires API key)

`pluggedin_search_documents`

Search for specific documents in your library. Returns document metadata (ID, title, snippet). To retrieve full content, use pluggedin_get_document with the returned document ID.

`pluggedin_get_document`

Retrieve a specific document's full content by ID. Use this after pluggedin_search_documents to get the complete content of documents you found. Set includeContent=true to get the full text.

`pluggedin_update_document`

Update or append to an existing AI-generated document (requires API key)

`pluggedin_send_notification`

Send custom notifications through the Plugged.in system with optional email delivery. You can provide a custom title or let the system use a localized default.

`pluggedin_list_notifications`

List notifications from the Plugged.in system with optional filters for unread only and result limit

`pluggedin_mark_notification_done`

Mark a notification as done in the Plugged.in system

`pluggedin_delete_notification`

Delete a notification from the Plugged.in system

`pluggedin_clipboard_set`

Set a clipboard entry by name (semantic key) or index (array-like). Named entries are upserted; indexed entries fail if index exists. Max 2MB per entry.

`pluggedin_clipboard_get`

Get clipboard entries. Specify name or idx for a single entry, or omit both to list all entries with pagination.

`pluggedin_clipboard_delete`

Delete clipboard entries by name, index, or clear all entries.

`pluggedin_clipboard_list`

List all clipboard entries with metadata. Image values are truncated to first 1000 chars for preview.

`pluggedin_clipboard_push`

Push a value to the indexed clipboard with auto-incrementing index. Useful for building ordered pipelines or stack-like operations.

`pluggedin_clipboard_pop`

Pop the highest-indexed entry from the clipboard (LIFO behavior). Returns the entry value and removes it.

`pluggedin_memory_session_start`

Start a new memory session to begin capturing observations. Returns a session UUID and memory_session_id for subsequent operations.

`pluggedin_memory_session_end`

End a memory session and trigger Z-report generation (AI-compressed session summary).

`pluggedin_memory_observe`

Record an observation during a memory session. Observations are classified by the Analytics Agent into memory ring types (procedures, practice, longterm, shocks).

`pluggedin_memory_search`

Search memories using semantic similarity. Returns lightweight results (50-150 tokens each) for token-efficient progressive disclosure. Use pluggedin_memory_details for full content.

`pluggedin_memory_details`

Get full details for selected memories (progressive disclosure Layer 3). Use after pluggedin_memory_search to retrieve complete content for specific memories.

Claude Desktop / Cursor

Paste into your MCP client config file to install this server.

{
    "mcpServers": {
        "plugged.in": {
            "pluggedin-mcp-proxy": {
                "command": "npx",
                "args": [
                    "-y",
                    "@pluggedin/pluggedin-mcp-proxy@latest",
                    "--pluggedin-api-key",
                    "YOUR_API_KEY"
                ]
            }
        }
    }
}

McpServers

{
    "pluggedin-mcp-proxy": {
        "command": "npx",
        "args": [
            "-y",
            "@pluggedin/pluggedin-mcp-proxy@latest",
            "--pluggedin-api-key",
            "YOUR_API_KEY"
        ]
    }
}

plugged.in MCP Hub — Proxy · Knowledge · Memory · Tools

<div align="center">
plugged.in Logo
<h3>The Crossroads for AI Data Exchanges</h3>
<p>A unified MCP hub that gives your AI <strong>Knowledge</strong>, <strong>Memory</strong>, and <strong>Tools</strong> — not just a proxy. Manage and test all MCP servers from a single connection while powering document-aware and memory-augmented workflows across clients.</p>

</div>

📋 Overview

The plugged.in MCP Proxy Server is a powerful middleware that aggregates multiple Model Context Protocol (MCP) servers into a single unified interface. It fetches tool, prompt, and resource configurations from the plugged.in App and intelligently routes requests to the appropriate underlying MCP servers.

This proxy enables seamless integration with any MCP client (Claude, Cline, Cursor, etc.) while providing advanced management capabilities through the plugged.in ecosystem.

Hub Pillars: Knowledge · Memory · Tools · Proxy

Knowledge (RAG v2 / AI Document Exchange)
Search and ground model outputs with unified, attribution‑aware document retrieval. MCP servers can create and manage documents in your library with versioning, visibility controls, and model attribution. Use the built‑in RAG to search across all connected sources and return relevant snippets and metadata.

Memory (Persistent AI Memory)
Long‑lived, workspace/profile‑scoped memory that survives sessions. The hub integrates with the plugged.in App's persistent memory so agent actions and insights can be stored and recalled across tasks. Built‑in memory tools are on the roadmap to expose low‑friction get/put/search patterns under the same auth model.

Tools
Aggregate built‑in capabilities with downstream MCP servers (STDIO, SSE, Streamable HTTP). Tool discovery is cached and can be refreshed on demand; hub‑level discovery returns a unified catalog for any MCP client. The hub supports tools, resources, resource templates, and prompts.

Proxy
One connection for every client. Run as STDIO (default) or Streamable HTTP with optional API auth and stateless mode. Works with Claude Desktop, Cline, Cursor, MCP Inspector, and more; keep your existing client configs while centralizing policies and telemetry.

> ⭐ If you find this project useful, please consider giving it a star on GitHub! It helps us reach more developers and motivates us to keep improving.

✨ Key Features

🚀 Core Capabilities

- Built-in AI Playground: Test your MCPs instantly with Claude, Gemini, OpenAI, and xAI without any client setup - Universal MCP Compatibility: Works with any MCP client including Claude Desktop, Cline, and Cursor - Multi-Server Support: Connect to STDIO, SSE, and Streamable HTTP MCP servers - Dual Transport Modes: Run proxy as STDIO (default) or Streamable HTTP server - Unified Document Search: Search across all connected servers with built-in RAG capabilities - AI Document Exchange (RAG v2): MCP servers can create and manage documents in your library with full attribution - Notifications from Any Model: Receive real-time notifications with optional email delivery - Multi-Workspace Layer: Switch between different sets of MCP configurations with one click - API-Driven Proxy: Fetches capabilities from plugged.in App APIs rather than direct discovery - Full MCP Support: Handles tools, resources, resource templates, and prompts - Custom Instructions: Supports server-specific instructions formatted as MCP prompts

🎯 New in v1.5.0 (RAG v2 - AI Document Exchange)

- AI Document Creation: MCP servers can now create documents directly in your library
- Full model attribution tracking (which AI created/updated the document)
- Version history with change tracking
- Content deduplication via SHA-256 hashing
- Support for multiple formats: MD, TXT, JSON, HTML, PDF, and more
- Advanced Document Search: Enhanced RAG queries with AI filtering
- Filter by AI model, provider, date range, tags, and source type
- Semantic search with relevance scoring
- Automatic snippet generation with keyword highlighting
- Support for filtering: ai_generated, upload, or api sources
- Document Management via MCP:
- Set document visibility: private, workspace, or public
- Parent-child relationships for document versions
- Profile-based organization alongside project-based scoping
- Real-time progress tracking for document processing

🎯 Features from v1.4.0 (Registry v2 Support)

- OAuth Token Management: Seamless OAuth authentication handling for Streamable HTTP MCP servers
- Automatic token retrieval from plugged.in App
- Secure token storage and refresh mechanisms
- No client-side authentication needed
- Enhanced Notification System: Bidirectional notification support
- Send notifications to plugged.in App
- Receive notifications from MCP servers
- Mark notifications as read/unread
- Delete notifications programmatically
- Trending Analytics: Real-time activity tracking
- Every tool call is logged and tracked
- Contributes to trending server calculations
- Usage metrics and popularity insights
- Registry Integration: Full support for Registry v2 features
- Automatic server discovery from registry
- Installation tracking and metrics
- Community server support

📦 Features from v1.1.0

- Streamable HTTP Support: Full support for downstream MCP servers using Streamable HTTP transport
- HTTP Server Mode: Run the proxy as an HTTP server with configurable ports
- Flexible Authentication: Optional Bearer token authentication for HTTP endpoints
- Session Management: Choose between stateful (session-based) or stateless operation modes

🎯 Core Features from v1.0.0

- Real-Time Notifications: Track all MCP activities with comprehensive notification support
- RAG Integration: Support for document-enhanced queries through the plugged.in App
- Inspector Scripts: Automated testing tools for debugging and development
- Health Monitoring: Built-in ping endpoint for connection monitoring

🔧 Tool Categories

The proxy provides two distinct categories of tools:

🔧 Static Built-in Tools (Always Available)

These tools are built into the proxy and work without any server configuration: - pluggedin_discover_tools - Smart discovery with caching for instant results - pluggedin_ask_knowledge_base - RAG search across your documents with AI filtering capabilities - pluggedin_send_notification - Send notifications with optional email delivery - pluggedin_create_document - Create AI-generated documents in your library - pluggedin_list_documents - List documents with filtering options - pluggedin_search_documents - Search for specific documents by query - pluggedin_get_document - Retrieve a specific document's full content by ID - pluggedin_update_document - Update or append to an existing document

📋 Clipboard Tools (Memory System)

- pluggedin_clipboard_set - Set a clipboard entry by name (semantic key) or index
- pluggedin_clipboard_get - Get clipboard entries by name, index, or list all
- pluggedin_clipboard_delete - Delete clipboard entries by name, index, or clear all
- pluggedin_clipboard_list - List all clipboard entries with metadata
- pluggedin_clipboard_push - Push a value with auto-incrementing index (stack push)
- pluggedin_clipboard_pop - Pop the highest-indexed entry (LIFO behavior)

⚡ Dynamic MCP Tools (From Connected Servers)

These tools come from your configured MCP servers and can be turned on/off: - Database tools (PostgreSQL, SQLite, etc.) - File system tools - API integration tools - Custom tools from any MCP server

The discovery tool intelligently shows both categories, giving AI models immediate access to all available capabilities.

🚀 Discovery Tool Usage

```bash

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About

Details

Jump to

Setting up with Highlight

From the repository

pluggedin_setup

pluggedin_discover_tools

pluggedin_ask_knowledge_base

pluggedin_create_document

pluggedin_list_documents

pluggedin_search_documents

pluggedin_get_document

pluggedin_update_document

pluggedin_send_notification

pluggedin_list_notifications

pluggedin_mark_notification_done

pluggedin_delete_notification

pluggedin_clipboard_set

pluggedin_clipboard_get

pluggedin_clipboard_delete

pluggedin_clipboard_list

pluggedin_clipboard_push

pluggedin_clipboard_pop

pluggedin_memory_session_start

pluggedin_memory_session_end

pluggedin_memory_observe

pluggedin_memory_search

pluggedin_memory_details

Claude Desktop / Cursor

McpServers

plugged.in MCP Hub — Proxy · Knowledge · Memory · Tools

📋 Overview

Hub Pillars: Knowledge · Memory · Tools · Proxy

✨ Key Features

🚀 Core Capabilities

🎯 New in v1.5.0 (RAG v2 - AI Document Exchange)

🎯 Features from v1.4.0 (Registry v2 Support)

📦 Features from v1.1.0

🎯 Core Features from v1.0.0

🔧 Tool Categories

🔧 Static Built-in Tools (Always Available)

📋 Clipboard Tools (Memory System)

⚡ Dynamic MCP Tools (From Connected Servers)

🚀 Discovery Tool Usage

Install

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`pluggedin_setup`

`pluggedin_discover_tools`

`pluggedin_ask_knowledge_base`

`pluggedin_create_document`

`pluggedin_list_documents`

`pluggedin_search_documents`

`pluggedin_get_document`

`pluggedin_update_document`

`pluggedin_send_notification`

`pluggedin_list_notifications`

`pluggedin_mark_notification_done`

`pluggedin_delete_notification`

`pluggedin_clipboard_set`

`pluggedin_clipboard_get`

`pluggedin_clipboard_delete`

`pluggedin_clipboard_list`

`pluggedin_clipboard_push`

`pluggedin_clipboard_pop`

`pluggedin_memory_session_start`

`pluggedin_memory_session_end`

`pluggedin_memory_observe`

`pluggedin_memory_search`

`pluggedin_memory_details`