Vector Databases

Specialized database systems designed for storing, indexing, and querying high-dimensional vector embeddings. Enables similarity search, semantic retrieval, and powering features like AI context retrieval, nearest neighbor search, and RAG workflows for LLMs.

MCP ServersBrowse all →

CPersonaofficial
Knowledge & Memory Vector Databases Local
Cloto-dev
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license
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Persistent AI memory server with 3-layer hybrid search (vector + FTS5 + keyword), confidence scoring via Reciprocal Rank Fusion, episodic/profile memory, and 16 tools. Zero LLM dependency. Works standalone with Claude Desktop and Claude Code. MIT licensed.
Last updated 2026-04-08
21
1
MIT
ArcadeDB Multi-Model DBMSofficial
Databases Vector Databases RAG Systems
ArcadeData
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license
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ArcadeDB Multi-Model Database, one DBMS that supports SQL, Cypher, Gremlin, HTTP/JSON, MongoDB and Redis. ArcadeDB is a conceptual fork of OrientDB, the first Multi-Model DBMS. ArcadeDB supports Vector Embeddings.
Last updated 2026-05-12
10
868
Apache 2.0
Chroma MCP Serverofficial
Vector Databases RAG Systems Knowledge & Memory
chroma-core
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license
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quality
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maintenance
A server that provides data retrieval capabilities powered by Chroma embedding database, enabling AI models to create collections over generated data and user inputs, and retrieve that data using vector search, full text search, and metadata filtering.
Last updated 2025-09-17
13
542
Apache 2.0
Astra DB MCP Serverofficial
Databases Agent Orchestration Vector Databases
datastax
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license
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quality
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A Model Context Protocol server that allows Large Language Models to interact with Astra DB databases, providing tools for managing collections and records through natural language commands.
Last updated 2026-01-26
16
13
38
Apache 2.0
Redis MCP Serverofficial
Databases RAG Systems Vector Databases
redis
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The official Redis MCP Server is a natural language interface designed for agentic applications to efficiently manage and search data in Redis.
Last updated 2026-05-12
51
509
MIT
Baidu Vector Database MCPofficial
Vector Databases RAG Systems Hybrid
baidu
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A server that provides access to Baidu Cloud Vector Database functionality through the Model Context Protocol, enabling LLM applications to perform vector searches and database operations via natural language.
Last updated 2025-05-08
14
3
Apache 2.0
Nordic Financial MCP
Finance RAG Systems Vector Databases
AIDataNordic
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license
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Semantic search over Nordic economic data — market announcements, quarterly reports (162 companies), macro data (NO/SE/DK/FI), commodity prices, and press releases. 180,000+ vectors.
Last updated 2026-05-12
42
6
MIT
food-recipe-mcp
RAG Systems Search Vector Databases
AIDataNordic
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license
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quality
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A production-grade semantic search server for food recipes — built for AI agents using the Model Context Protocol (MCP). Search across 50,000+ recipes with hybrid dense + sparse retrieval and cross-encoder reranking.
Last updated 2026-04-28
14
2
MIT
mcp-server-qdrantofficial
Vector Databases RAG Systems Knowledge & Memory
qdrant
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This repository is an example of how to create a MCP server for Qdrant, a vector search engine.
Last updated 2026-04-27
2
1,390
Apache 2.0
Pinecone Developer MCPofficial
RAG Systems Vector Databases Developer Tools
pinecone-io
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Pinecone Developer MCP
Last updated 2026-04-16
1
1,762
65
Apache 2.0
Zilliz MCP Serverofficial
Vector Databases RAG Systems Databases
zilliztech
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license
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Enables AI agents to interact with Milvus vector databases and Zilliz Cloud through natural language, allowing users to create clusters, manage collections, insert vector data, and perform semantic searches directly from their AI assistants.
Last updated 2025-07-03
16
33
Apache 2.0
MCP Memory Service
Knowledge & Memory Vector Databases RAG Systems
doobidoo
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license
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Provides semantic memory and persistent storage for Claude, leveraging ChromaDB and sentence transformers for enhanced search and retrieval capabilities.
Last updated 2026-05-12
3
1,834
Vectorize MCP Server
Vector Databases RAG Systems Search
dannwaneri
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Provides semantic search capabilities by connecting Claude Desktop to a Cloudflare Workers backend powered by Vectorize. It enables natural language querying of knowledge bases using vector similarity and edge-based embedding generation.
Last updated 2026-04-26
2
MIT
AWS MCP Server
Cloud Platforms Vector Databases Monitoring
Havoc24k
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license
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Enables Claude to interact with core AWS services like S3, EC2, RDS, and CloudWatch, along with a generic SDK wrapper for any AWS operation. It also supports cost monitoring and optional vector store capabilities for document ingestion and search.
Last updated 2025-11-25
10
3
The Unlicense
PinRAG
RAG Systems Vector Databases Developer Tools
ndjordjevic
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RAG MCP server for PDFs, YouTube, GitHub repos, and Discord exports. Index documents and query with citations via LangChain and Chroma.
Last updated 2026-04-10
5
1
MIT
Workspace Qdrant MCP
Developer Tools Knowledge & Memory Vector Databases
ChrisGVE
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license
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Project-scoped semantic workspace memory for AI coding assistants. Watches your project files and auto-indexes code and docs into Qdrant using tree-sitter semantic chunking and hybrid search (dense + sparse + RRF)
Last updated 2026-05-01
6
1
dex-kline-mcp
Blockchain Web3 & Decentralized Tech Vector Databases
kukapay
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An MCP server that streams K-line (candlestick) data from decentralized exchanges (DEXs) to power your AI agents and workflows.
Last updated 2025-07-02
1
4
MIT
Context MCP
Vector Databases Knowledge & Memory RAG Systems
Raunak-dev-18
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Provides persistent context management for AI agents by storing and querying semantic information using Upstash Vector DB and Google AI embeddings. It enables semantic search, batch operations, and metadata filtering to help agents retrieve relevant stored knowledge.
Last updated 2026-02-05
6
3
MIT
Memory Box MCP Server
Vector Databases Knowledge & Memory RAG Systems
amotivv
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Cline MCP integration that allows users to save, search, and format memories with semantic understanding, providing tools to store and retrieve information using vector embeddings for meaning-based search.
Last updated 2025-09-22
12
9
MIT
Connapse
RAG Systems Knowledge & Memory Vector Databases
Destrayon
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Self-hosted knowledge backend for AI agents. Provides 11 MCP tools for hybrid vector + keyword search, container-isolated knowledge bases, and 4 storage connectors (S3, Azure Blob, MinIO, filesystem). Built with .NET, runs via Docker.
Last updated 2026-04-30
11
10
Neo4j GraphRAG MCP Server
RAG Systems Databases Vector Databases
neo4j-field
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An MCP server that enables LLMs to perform semantic and fulltext searches within Neo4j while executing complex, search-augmented Cypher queries for GraphRAG applications. It provides tools for database schema discovery and supports multi-provider embeddings to facilitate advanced graph traversals.
Last updated 2026-03-26
5
2
MIT
mem0 Memory System
Knowledge & Memory Vector Databases Autonomous Agents
pinkpixel-dev
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A flexible memory system for AI applications that supports multiple LLM providers and can be used either as an MCP server or as a direct library integration, enabling autonomous memory management without explicit commands.
Last updated 2026-04-07
3
72
94
MIT
project-code-intelligence
Code Analysis Vector Databases RAG Systems
cvandesande
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Hardware-accelerated codebase mapping that indexes Git repositories into Postgres/pgvector and serves code search, relationships, and static analysis results via a stdio MCP server.
Last updated 2026-05-12
8
MIT
Engram
Knowledge & Memory Vector Databases Autonomous Agents
staticroostermedia-arch
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license
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Headless geometric memory engine for AI agents — no Vector DB, no cloud, no API key. Store and retrieve by meaning using native Vector Symbolic Architecture (NVSA) math over O_DIRECT NVMe mapping. Runs entirely on your machine via MCP.
Last updated 2026-05-07
31
6
AGPL 3.0
MCP Memory LibSQL
Vector Databases Knowledge & Memory RAG Systems
joleyline
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A high-performance, persistent memory system for the Model Context Protocol (MCP) providing vector search capabilities and efficient knowledge storage using libSQL as the backing store.
Last updated 2025-03-05
6
194
24
MIT
CockroachDB MCP Server
Databases Developer Tools Vector Databases
amineelkouhen
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license
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A natural language interface that enables LLMs and agentic applications to manage, monitor, and query data in CockroachDB through MCP (Model Content Protocol).
Last updated 2026-01-25
29
10
Python
MIT
Better Qdrant MCP Server
Vector Databases RAG Systems Search
wrediam
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license
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A Model Context Protocol server that enables semantic search capabilities by providing tools to manage Qdrant vector database collections, process and embed documents using various embedding services, and perform semantic searches across vector embeddings.
Last updated 2025-12-16
4
32
3
MIT
NebulaGraph MCP Server
Databases Knowledge & Memory Vector Databases
nebula-contrib
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A Model Context Protocol server implementation that enables LLMs to interact with NebulaGraph database for graph exploration, supporting schema understanding, queries, and graph algorithms.
Last updated 2025-03-17
5
27
Apache 2.0
Vectorizeofficial
RAG Systems Vector Databases Search
vectorize-io
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Vectorize MCP server for advanced retrieval, Private Deep Research, Anything-to-Markdown file extraction and text chunking.
Last updated 2026-05-11
17
105
MIT
Meilisearch MCP Server
Search Vector Databases RAG Systems
OrionPotter
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license
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Enables AI assistants to interact with Meilisearch through a standardized interface, supporting index and document management, search capabilities, settings configuration, task monitoring, and experimental vector search.
Last updated 2025-11-20
68