Uninterested in seeing AI giving obscure solutions when it doesn’t have entry to dwell information? Bored of writing code for performing RAG on native information time and again? These two huge issues could be solved simply by integrating RAG with MCP (Mannequin Context Protocol). With MCP, you’ll be able to join your AI assistant to exterior instruments and APIs to carry out true RAG seamlessly. MCP is a recreation changer in how AI fashions talk with dwell information. However, RAG acts as a boon for AI fashions, offering them with exterior information that the AI mannequin is unaware of. On this article, we’ll deep dive into the combination of RAG with MCP, what they appear like when working collectively, and stroll you thru a working instance.
What’s RAG?
RAG is an AI framework that mixes the strengths of conventional info retrieval methods (reminiscent of search and database) with the capabilities of AI fashions which can be excellent at pure language technology. Its advantages embody real-time and factual responses, diminished hallucinations, and context-aware solutions. RAG is like asking a librarian concerning the info earlier than writing an in depth report.

Study extra about RAG in this article.
What’s MCP?
MCP acts as a bridge between your AI assistant and exterior instruments. It’s an open protocol that lets LLMs entry real-world instruments, APIs, or datasets precisely and effectively. Conventional APIs and instruments require customized code for integrating them with AI fashions, however MCP supplies a generic technique to join instruments to LLMs within the easiest method doable. It supplies plug-and-play instruments.

Study extra about MCP in this article.
How does it allow RAG?
In RAG, MCP acts as a retrieval layer that retrieves the necessary chunks of knowledge out of your database based mostly in your question. It utterly standardized the way you work together along with your databases. Now, you don’t have to write down customized code for each RAG that you’re constructing. It permits dynamic instrument use based mostly on the AI’s reasoning.
Use Circumstances for RAG with MCP
There are numerous use instances for RAG with MCP. A few of that are:
- Search information articles for summarization
- Question monetary APIs for market updates
- Load personal paperwork for context-aware solutions
- Fetch climate or location-based information earlier than answering
- Use PDFs or database connectors to energy enterprise search
Steps for Performing RAG with MCP
Now, we’re going to implement RAG with MCP in an in depth method. Observe these steps to create your first MCP server performing RAG. Let’s dive into implementation now:
Firstly, we are going to arrange our RAG MCP server.
Step 1: Putting in the dependencies
pip set up langchain>=0.1.0
langchain-community>=0.0.5
langchain-groq>=0.0.2
mcp>=1.9.1
chromadb>=0.4.22
huggingface-hub>=0.20.3
transformers>=4.38.0
sentence-transformers>=2.2.2
This step will set up all of the required libraries in your system.
Step 2: Creating server.py
Now, we’re defining the RAG MCP server within the server.py file. Following is the code for it. It accommodates a easy RAG code with an MCP connection to it.
from mcp.server.fastmcp import FastMCP
from langchain.chains import RetrievalQA
from langchain.document_loaders import TextLoader
from langchain.text_splitter import CharacterTextSplitter
from langchain_community.vectorstores import Chroma
from langchain_community.embeddings import HuggingFaceEmbeddings
from langchain_groq import ChatGroq # Groq LLM
# Create an MCP server
mcp = FastMCP("RAG")
# Arrange embeddings (You'll be able to choose a special Hugging Face mannequin if most popular)
embeddings = HuggingFaceEmbeddings(model_name="sentence-transformers/all-MiniLM-L6-v2")
# Arrange Groq LLM
mannequin = ChatGroq(
model_name="llama3-8b-8192", # or one other Groq-supported mannequin
groq_api_key="YOUR_GROQ_API" # Required if not set through surroundings variable
)
# Load paperwork
loader = TextLoader("dummy.txt")
information = loader.load()
# Doc splitting
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
texts = text_splitter.split_documents(information)
# Vector DB
docsearch = Chroma.from_documents(texts, embeddings)
# Retriever chain
qa = RetrievalQA.from_chain_type(llm=mannequin, retriever=docsearch.as_retriever())
@mcp.instrument()
def retrieve(immediate: str) -> str:
"""Get info utilizing RAG"""
return qa.invoke(immediate)
if __name__ == "__main__":
mcp.run()
Right here, we’re utilizing the Groq API for accessing LLM. Make certain it’s important to Groq API. Dummy.txt used right here is any information that you’ve got, the contents of which you’ll change in response to your use case.
Now, we now have efficiently created the RAG MCP server. Now, to test it, run it utilizing Python within the terminal.
python server.py
Step 3: Configuring Cursor for MCP
Let’s configure the Cursor IDE for testing our server.
- Obtain Cursor from the official web site https://www.cursor.com/downloads.
- Set up it, join, and get to the house display screen.

- Now go to the File from the header toolbar. and click on on Preferences after which on Cursor Settings.

- From the cursor settings, click on on MCP.

- On the MCP tab, click on on Add new international MCP Server.

It should open a mcp.json file. Paste the next code into it and save the file.
Substitute /path/to/python
with the trail to your Python executable and /path/to/server.py
along with your server.py path.
{
"mcpServers": {
"rag-server": {
"command": "/path/to/python",
"args": [
"path/to/server.py"
]
}
}
}
- Return to the Cursor Settings, you need to see the next:

For those who see the earlier display screen, it means your server is operating efficiently and is linked to the Cursor IDE. If it’s exhibiting some errors, strive utilizing the restart button within the prime proper nook.
We now have efficiently arrange the MCP server within the Cursor IDE. Now, let’s take a look at the server.
Step 4: Testing the MCP Server
Our RAG MCP server can now carry out RAG and efficiently retrieve one of the best chunks based mostly on our question. Let’s take a look at them.
Question: “What’s Zephyria, Reply utilizing rag-server”
Output:

Question: “What was the battle within the planet?”
Output:

Question: “What’s the capital of Zephyria?”
Output:

Conclusion
RAG, when powered with MCP, can utterly change the best way you discuss to your AI assistant. It might rework your AI from a easy textual content generator right into a dwell assistant that thinks and processes info identical to a human would. Integrating each can enhance your productiveness and enhance your effectivity over time. With only a few beforehand talked about steps, anybody can construct AI purposes linked to the actual world utilizing RAG with MCP. Now it’s time so that you can give your LLM superpowers by organising your personal MCP instruments.
Ceaselessly Requested Questions
A. Conventional LLMs generate responses based mostly solely on their pre-trained information, which can be outdated or incomplete. RAG enhances this by retrieving real-time or exterior information (paperwork, APIs) earlier than answering, making certain extra correct and up-to-date responses.
A. MCP eliminates the necessity to hardcode each API or database integration manually. It supplies a plug-and-play mechanism to show instruments that AI fashions can dynamically use based mostly on context, making RAG implementation sooner, scalable, and extra maintainable.
A. Under no circumstances. With primary Python information and following the step-by-step setup, you’ll be able to create your personal RAG-powered MCP server. Instruments like LangChain and Cursor IDE make the combination simple.
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