# DigitalOcean Managed OpenSearch for Vector Search – DigitalOcean Documentation

> Use DigitalOcean Managed OpenSearch as a vector database. OpenSearch bundles the k-NN, ML Commons, and Neural Search plugins for vector similarity search, hybrid (vector plus keyword) search, and remote embedding models.



## Getting Started with OpenSearch Vector Search

Quickstart guides for using DigitalOcean Managed OpenSearch as a vector database.

- [Vector Search Quickstart for OpenSearch](https://docs.digitalocean.com/products/vector-databases/opensearch/getting-started/quickstart/index.html.md): Create a DigitalOcean Managed OpenSearch cluster, configure it as a vector store, index sample embeddings, and run a k-NN similarity query in about 15 minutes.

## DigitalOcean Managed OpenSearch Vector How-Tos

How to create OpenSearch vector clusters, build k-NN indexes, run hybrid searches, and register remote embedding models.

- [Create an OpenSearch Vector Database Cluster](https://docs.digitalocean.com/products/vector-databases/opensearch/how-to/create/index.html.md): Provision a DigitalOcean Managed OpenSearch cluster sized for vector search from the Control Panel, the API, or doctl.
- [Create a k-NN Index in OpenSearch](https://docs.digitalocean.com/products/vector-databases/opensearch/how-to/create-knn-index/index.html.md): Choose an engine, a space type, and HNSW parameters for an OpenSearch k-NN index that matches your vector workload.
- [Index and Query Vectors via the OpenSearch API](https://docs.digitalocean.com/products/vector-databases/opensearch/how-to/index-and-query/index.html.md): Ingest single and bulk documents, run k-NN queries, and filter by metadata against a DigitalOcean Managed OpenSearch vector database.
- [Run Hybrid (Vector plus Keyword) Searches in OpenSearch](https://docs.digitalocean.com/products/vector-databases/opensearch/how-to/hybrid-search/index.html.md): Combine BM25 keyword relevance with k-NN vector similarity using a search pipeline on DigitalOcean Managed OpenSearch.
- [Register a Remote Embedding Model with ML Commons](https://docs.digitalocean.com/products/vector-databases/opensearch/how-to/ml-commons/index.html.md): Let DigitalOcean Managed OpenSearch call your embedding provider directly at ingest and query time, using the ML Commons plugin.

## OpenSearch Vector Search Concepts

Background reading on vector embeddings, HNSW, engines, hybrid search, and where embeddings come from, specific to DigitalOcean Managed OpenSearch.

- [Vector Search on OpenSearch](https://docs.digitalocean.com/products/vector-databases/opensearch/concepts/vector-search-on-opensearch/index.html.md): Background you need to make good decisions when designing a vector-search system on DigitalOcean Managed OpenSearch.