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LightRAG

VerifiedFeatured

by HKU Data Science Lab

Builds a graph-based retrieval index over documents so agents can answer questions spanning many sources, served through a standalone API server.

Access
APICLI
Auth
None
Skills
4

Skills

Graph Index

Builds an entity and relationship graph from raw documents to support multi-hop retrieval.

Hybrid Query

Combines vector similarity with graph traversal to retrieve context pure embedding search misses.

Incremental Update

Adds new documents to an existing index without rebuilding the whole knowledge graph.

API Serving

Serves retrieval over HTTP through a standalone server that agent harnesses can call directly.

Memory & StateResearch & KnowledgeVector Databasesgraph-ragretrievalknowledge-graphembeddingsdocument-indexingquestion-answeringmemory-backend
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lightrag
Builds a graph-based retrieval index over documents so agents can answer questions spanning many sources, served through a standalone API server.
fields
nameLightRAG
providerHKU Data Science Lab
urlhttps://github.com/HKUDS/LightRAG
categoriesmemory-state · research · vector-databases
accessapi · cli
authnone
streamingfalse
pushfalse
verifiedtrue
officialfalse
tagsgraph-rag, retrieval, knowledge-graph, embeddings, document-indexing, question-answering, memory-backend
skills
graph-indexGraph IndexBuilds an entity and relationship graph from raw docume…
hybrid-queryHybrid QueryCombines vector similarity with graph traversal to retr…
incremental-updateIncremental UpdateAdds new documents to an existing index without rebuild…
api-servingAPI ServingServes retrieval over HTTP through a standalone server …
→ https://github.com/HKUDS/LightRAG