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Mcp Os
What is Mcp Os
MCP-OS is a Model Context Protocol Orchestration System designed to optimize the management of MCPs by fetching only the necessary ones for a task, thereby reducing prompt bloat and enabling on-demand server toggling for a more efficient and secure toolset.
Use cases
Use cases for MCP-OS include optimizing large language model interactions by minimizing prompt bloat, managing MCP connections for improved resource hygiene, and providing a secure environment by controlling MCP server availability.
How to use
To use MCP-OS, clone the repository from GitHub, install the necessary dependencies, and build the vector index to scan local or remote MCP metadata. This allows for efficient retrieval of MCPs based on task descriptions.
Key features
Key features of MCP-OS include vector retrieval for efficient MCP selection, a slim prompt template that reduces token usage by approximately 70%, and pluggable back-ends that allow for flexibility in embedding options.
Where to use
MCP-OS can be utilized in various fields such as artificial intelligence, natural language processing, and any domain that requires efficient management of multiple MCPs to enhance task execution.
Clients Supporting MCP
The following are the main client software that supports the Model Context Protocol. Click the link to visit the official website for more information.
Overview
What is Mcp Os
MCP-OS is a Model Context Protocol Orchestration System designed to optimize the management of MCPs by fetching only the necessary ones for a task, thereby reducing prompt bloat and enabling on-demand server toggling for a more efficient and secure toolset.
Use cases
Use cases for MCP-OS include optimizing large language model interactions by minimizing prompt bloat, managing MCP connections for improved resource hygiene, and providing a secure environment by controlling MCP server availability.
How to use
To use MCP-OS, clone the repository from GitHub, install the necessary dependencies, and build the vector index to scan local or remote MCP metadata. This allows for efficient retrieval of MCPs based on task descriptions.
Key features
Key features of MCP-OS include vector retrieval for efficient MCP selection, a slim prompt template that reduces token usage by approximately 70%, and pluggable back-ends that allow for flexibility in embedding options.
Where to use
MCP-OS can be utilized in various fields such as artificial intelligence, natural language processing, and any domain that requires efficient management of multiple MCPs to enhance task execution.
Clients Supporting MCP
The following are the main client software that supports the Model Context Protocol. Click the link to visit the official website for more information.
Content
MCP-OS · Model Context Protocol Orchestration System
Let your large language model focus on solving tasks—not wading through a sea of MCPs.
✨ Project Vision
As the Model Context Protocol (MCP) ecosystem explodes, hundreds of MCP servers create three familiar headaches:
| Pain Point | Description |
|---|---|
| Prompt Bloat | Lengthy MCP descriptions crowd the context window; the model spends more tokens picking tools than planning / analysis. |
| Connection Hygiene | We must constantly track which MCPs are alive and whether they satisfy the current task. |
| Resource & Security | Always-on MCP servers consume memory and expose interfaces, increasing attack surface. |
MCP-OS aims to:
“Manage MCPs the way an operating system manages processes—load on demand, unload when idle.”
🌟 Current Phase: MCP-Retriever (Completed ✅)
- Vector Retrieval — Embed task descriptions and retrieve Top-k MCPs from a vector index.
- Slim Prompt Template — Inject only the Top-k MCP descriptions, saving ~70 % prompt tokens on average.
- Pluggable Back-ends — Default
openai/embeddings; swap in FAISS, Qdrant, Milvus, etc.
📖 Details in
/packages/retriever.
🛣️ Roadmap
| Milestone | Feature | Status |
|---|---|---|
| v0.1 | MCP-Retriever – vector search | ✅ Released |
| v0.2 | MCP-Retriever - light version | ⏳ In progress |
| v0.3 | Health-Check Daemon – auto heartbeat & pruning | ⏳ In progress |
| v0.4 | Runtime Manager – on-demand MCP start/stop | 🗓 Planned |
| v1.0 | Policy Sandbox – fine-grained auth, rate, cost | 🗓 Planned |
⚙️ Quick Start
1. Clone & Install
git clone https://github.com/your-org/mcp-os.git
cd mcp-os
npm install # or npm / yarn
2. Build the Vector Index
# Scan local / remote MCP metadata and create an index
npm run build:index --src ./mcp_list.json --out ./index
3. Start the Retriever Server
npm run start:retriever
# Default listens on 127.0.0.1:5500 (HTTP + SSE)
4. Wire It into Your LLM / Agent
// Example: Claude Desktop
{
"mcpServers": {
"mcp-os": {
"command": "/absolute/path/to/mcp-os/bin/retriever.js"
}
}
}
Or call the REST endpoint:
curl -X POST http://localhost:5500/match \
-H "Content-Type: application/json" \
-d '{"task": "Scrape a web page and extract its title"}'
Sample response:
{
"matches": [
{
"id": "web-scraper",
"score": 0.89,
"functions": [
"fetchHtml",
"querySelector"
]
}
]
}
📂 Repository Layout
mcp-os/ ├─ packages/ │ ├─ retriever/ # Phase 1: vector retrieval │ ├─ health-check/ # Phase 2: heartbeat daemon (WIP) │ └─ runtime-manager/ # Phase 3: load/unload (planned) ├─ scripts/ # CLI helpers ├─ examples/ # Usage demos └─ docs/ # Architecture & deep dives
🧩 MCP List Format
mcp_list.json describes MCP metadata:
❓ FAQ
Retrieval quality is poor—how do I tune it?
- Increase
topKfor higher recall. - Switch to a stronger embedding model.
- Refine task-text normalization rules.
How do I plug in my own vector store?
Implement the VectorStore interface: src/store/yourStore.ts.
🤝 Contributing
- Fork the repo
- Create a branch
feature/awesome-stuff - Open a PR and link related issues
- Wait for CI + review 🎉
📜 License
🙏 Acknowledgements
- The Model Context Protocol community for the open specification
- MCP Inspector for debugging
- Everyone who files issues or PRs—thank you! ❤️
Dev Tools Supporting MCP
The following are the main code editors that support the Model Context Protocol. Click the link to visit the official website for more information.










