Vector Databases
· 19Vector databases purpose-built for AI applications — store, index, and search high-dimensional embeddings at scale. These are the retrieval backbone of RAG pipelines, semantic search, and long-term agent memory. Available as managed cloud services or open-source self-hosted deployments.
5 officialListings
LanceDB
APIStores and searches multimodal vectors in an embedded database built on the Lance columnar format, running in-process…
LightRAG
API · CLIBuilds a graph-based retrieval index over documents so agents can answer questions spanning many sources, served…
Typesense
APIRuns typo-tolerant search with built-in vector, hybrid, and semantic modes over a REST API, self-hosted or on Typesense…
Algolia
APIHosted search and discovery API with typo tolerance, faceting, and vector search, callable directly for agent retrieval…
ChromaDB
API · CLIOpen-source embedding database for local and cloud AI apps. Simple API for storing, querying, and filtering embeddings.…
Codebase Memory MCP
MCP · CLIIndexes repositories into a persistent tree-sitter knowledge graph of functions, classes, call chains, and HTTP routes…
Cognee
API · MCP · CLIBuilds queryable memory for agents by turning documents and conversations into a knowledge graph plus vector store…
Elasticsearch MCP Server
MCPOfficial Elastic MCP server letting agents query Elasticsearch indices, run search and aggregations, and inspect…
Milvus
API · MCP · CLIHigh-performance open-source vector database with REST API, gRPC, and an official MCP server. Stores billions of…
PageIndex
API · MCPIndexes long documents as a reasoning-based hierarchical tree so agents retrieve by navigating structure instead of…
Pinecone
APIFully managed vector database for AI applications. Store and search billions of high-dimensional embeddings with low…
Qdrant
API · CLIHigh-performance open-source vector database. Supports dense, sparse, and multi-vector search. On-premise or cloud.…
Supabase MCP
MCPOfficial Supabase MCP server. Lets AI agents manage Postgres databases, run queries, handle migrations, store pgvector…
turbopuffer
APIGives search and RAG backends a serverless vector and BM25 full-text search database built on object storage, queried…
turbovec
APIIndexes and searches embeddings with 2- to 4-bit TurboQuant compression in a Rust library with Python bindings, for…
Voyage AI (MongoDB)
APIProvides Voyage AI text, contextualized chunk, and multimodal embedding models plus rerankers through a MongoDB-hosted…
Weaviate
API · MCPStores objects and vectors together, combining semantic search with structured filtering for scalable, cloud-native AI…
XERJ
CLI · MCP · APIIndexes code, docs, logs, and PDFs locally so coding agents can run cited full-text, vector, and hybrid search over…
Zvec
APIEmbeds an in-process vector database into applications for dense, sparse, full-text, and hybrid search with durable…