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LambdaDB is the vector lake for AI memory. Store, search, and version AI knowledge and memory, from small experiments to production, without managing servers. Documents, vectors, and indexes live in durable object storage. Independently scalable compute handles indexing and retrieval, with usage-based pricing.

Store your knowledge and memory

Organize source documents, embeddings, and metadata in collections. Choose index types for the fields your application needs to search or filter. Supply your own vectors, or use native embeddings to generate document and query vectors from text and images with provider credentials managed by LambdaDB.

Search with the right signals

Find relevant documents using full-text, dense vector, or sparse vector search. Combine retrieval paths with hybrid search, then optionally apply native reranking to evaluate the retrieved text against your question. Use filters to narrow matches and keyword facets to show counts alongside supported lexical queries. The search overview covers query options and links to each search method’s detailed guide.

Version and recover your data

Use branches, tags, and aliases to isolate changes, pin datasets for evaluation, and switch application reads between versions. Collections retain committed snapshots for 30 days by default, with configurable retention. Create a point-in-time branch from retained history to inspect or recover an earlier state.

Get started

Connect your coding agent to LambdaDB and run your first search, or build directly with an SDK. For direct HTTP requests, see the REST API reference.

Start with an AI agent

Connect your coding agent and run your first search.

Start with an SDK

Create a collection, add documents, and run your first search with an SDK.

Use the CLI

Install the CLI, import JSONL, and run your first query.

Use the MCP server

Configure an MCP client manually and troubleshoot connections.