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Milvus MCP Tool Server

MCP Server

Insert and search vectors in Milvus via MCP tools

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Updated Jun 21, 2025

About

A Model Context Protocol server that provides simple insert and search operations for a Milvus vector database, automatically creating the default database and collection if needed.

Capabilities

Resources
Access data sources
Tools
Execute functions
Prompts
Pre-built templates
Sampling
AI model interactions

Overview

The Mcp Tool Server Milvus is a specialized MCP server that bridges AI assistants with the Milvus vector database. By exposing a set of “tool” primitives—, , and —the server lets an AI assistant ingest text into a vector collection and retrieve relevant embeddings in real time. This tight integration enables developers to build AI‑powered search, recommendation, or semantic understanding features without writing custom database connectors.

At its core, the server automatically provisions a Milvus database and collection when it starts. The defaults ( for the database and for the collection) can be overridden via environment variables, giving teams control over naming and organization. Because the server creates these resources on demand, it removes the need for manual Milvus setup and ensures that every AI session works against a consistent data store.

The provided tools are intentionally simple yet powerful. accepts a single text string and stores it as a vector, while handles an array of strings for bulk ingestion. The primitive takes a query string, converts it to an embedding using Milvus’s built‑in model, and returns the most similar vectors along with their metadata. These primitives are designed to be called directly from an MCP‑compatible client, making it straightforward for an AI assistant to perform real‑time data operations as part of a conversational flow.

In practice, this server is ideal for scenarios such as:

  • Semantic search assistants: Let an AI assistant answer questions by searching a knowledge base stored in Milvus.
  • Personalized recommendation engines: Store user preferences as vectors and retrieve similar items on demand.
  • Dynamic content indexing: Continuously ingest new documents or logs and make them immediately searchable by the assistant.

Integrating the Milvus MCP server into an AI workflow is seamless. Clients like or the TypeScript SDK can list available tools, invoke them with JSON arguments, and receive streaming responses—all over a standard HTTP connection. This means developers can embed vector search capabilities into their AI applications without handling low‑level database drivers or schema migrations.

Unique advantages of this MCP server include its zero‑config deployment via Docker Compose, automatic resource creation, and a clean tool interface that aligns with the MCP model. By abstracting away Milvus complexities, it empowers AI developers to focus on building intelligent experiences rather than database plumbing.