Top Vector Databases for AI Agents

vector-db · dataset · multimodal

Vector database optimized for AI datasets and multi-modal data. Store, version and query embeddings + raw data together.

vector-db · rag · embeddings

Open-source embedding database designed for AI-native applications, easy to run locally or in the cloud.

search · vector-search · enterprise

Distributed search and analytics engine. Full-text search, vector search (HNSW), and semantic retrieval in one engine. The backbone of many enterprise RAG and observability stacks.

vector-search · similarity · meta

Facebook AI Similarity Search — efficient vector similarity search and clustering library

vector-db · serverless · embedded

Serverless vector database for AI apps — embedded or cloud, built on the Lance columnar format

search · vector-search · open-source

Open-source search engine with AI-powered vector search. Hybrid full-text + semantic search, instant results under 50ms, typo-tolerance, and multi-tenant filtering. Easy self-host or Cloud.

vector-db · open-source · similarity-search

Open-source vector database built for scalable AI similarity search

vector-db · mongodb · cloud

Native vector search in MongoDB Atlas — combine semantic search with operational data at scale

database · serverless · postgres

Serverless PostgreSQL with branching. Instant database branches for dev/test, autoscaling to zero, and built-in pgvector for AI apps. GitHub integration for automatic branch-per-PR.

embeddings · open-source · rag

Open-source, high-performance text embeddings model — 8192 token context, fully reproducible

search · vector-search · open-source

Open-source Elasticsearch fork by AWS. Full-text search, vector search, anomaly detection, and ML inference. Powers Amazon OpenSearch Service. Apache 2.0 license.

vector-db · postgresql · open-source

Open-source PostgreSQL extension for vector similarity search — no separate DB needed

vector-database · rag · managed

Vector database for machine learning applications

vector-database · rag · search

Vector search engine for AI applications

vector-database · cloud · rag

Managed cloud version of the high-performance Qdrant vector database. Supports hybrid search for RAG and semantic search.

vector-db · redis · real-time

Redis as a vector database — real-time vector search with low latency for AI apps

database · vector · vector-database

RegattaDB is a distributed database built for AI agents. It unifies transactional processing (OLTP), real-time analytics (OLAP), and vector search in a single engine. Includes a native MCP endpoint for direct agent integration.

vector-database · postgresql · pgvector

Vector storage built on PostgreSQL + pgvector, seamlessly integrated with the Supabase platform. Great for RAG apps.

vector-db · serverless · tidb

Serverless vector database built on TiDB. Combines vector search, relational SQL, and JSON in one database. No infrastructure management, scales to billions of vectors.

vector-db · serverless · cost-efficient

Serverless vector database optimized for cost and query speed. Object-storage-based architecture with 10x cheaper storage than in-memory alternatives. Full-text + vector hybrid search.

redis · vector · memory

Serverless Redis and vector database for AI agents. Low-latency memory storage, semantic search, and rate limiting for production agent deployments.

search · vector-search · ml-serving

Open-source search and ML serving platform by Yahoo/Verizon. Combines vector search (ANN), structured filtering, and ML model inference in one engine. Powers Yahoo search at scale.

vector-database · rag · search

Open-source vector database

vector-database · cloud · milvus

Fully managed vector database cloud by the Milvus team. Supports billion-scale vector search with enterprise-grade SLA.