> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lambdadb.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# What is LambdaDB?

> Learn about LambdaDB, an AI-native serverless database with built-in vector search, full-text search, hybrid search, and flexible document storage.

LambdaDB is an **AI-native database** designed for building accurate, secure, and scalable AI apps and agents.
Store and search unstructured data at scale without managing any infrastructure.

## 🗃️ Serverless storage & retrieval

<CardGroup cols={2}>
  <Card title="Object storage" href="/guides/documents/upsert-data" icon="database">
    Store text, embeddings, and their metadata with flexible schema support across 9 different index types.
  </Card>

  <Card title="Vector search" href="/guides/search/vector" icon="magnifying-glass">
    k-NN search with cosine, euclidean, dot product, max inner product metrics.
  </Card>

  <Card title="Full-text search" href="/guides/search/query-string" icon="book-open">
    Multi-language analysis (English, Korean, Japanese, standard).
  </Card>

  <Card title="Hybrid search" href="/guides/search/hybrid" icon="bolt">
    Combines vector + lexical with score normalization (RRF, Min-Max, L2).
  </Card>

  <Card title="Multi-field vector search" href="/guides/search/vector#multi-field-vector-query" icon="layer-group">
    Search across multiple vector fields simultaneously.
  </Card>

  <Card title="Sparse vector search" href="/guides/search/sparse-vector" icon="network-wired">
    Efficient high-dimensional sparse vector storage and search.
  </Card>
</CardGroup>

## 🏢 Enterprise features

### Backup & recovery

* **Continuous backups**: Automatic collection-level backups with 30-day retention by default.
* **Point-in-time recovery (PITR)**: Restore a collection to any specific moment within the retention period.
* **Zero-copy branching**: Instant collection fork without data duplication.

### Operation & management

* **Serverless-native architecture**: Zero infrastructure management required without paying for idle resources.
* **Configurable rate limiting**: Project-level controls for API usage.
* **RESTful API**: Simple HTTP-based interface with comprehensive SDKs.