NebulaGraph
v5.2 adds graph-vector-text hybrid retrieval natively. MCP server for Claude/GPT agents. GraphRAG in three lines of code.
Active · Verified 2026-10-26 · fresh as of 2026-10-26 · 45 cited facts, 4 with a third-party source · 1 recorded change · Suggest a correction
At a glance
- Type
- Graph + vector + text hybrid retrieval vendor fix
- Tier
- T2
- Section
- Knowledge-graph platforms
- Latest release
- v3.8.0 OSS line (version referenced by repo docs; release date not captured) repo fix
- License
- Apache-2.0 repo fix
- Pricing
- OSS (Apache-2.0) + NebulaGraph Enterprise (commercial) vendor fix
- Funding
- $18M total (Seed + pre-A); investors: Redpoint China Ventures, Matrix Partners China, Source Code Capital, Jeneration third-party fix
- Freshness
- 2026-10-26 fix
- Layer
- model-infra repo fix
- Developer activity
- OpenRank 0.78 (12-mo avg 1.84) · 5 participants — 2026-09 third-party fix
When to use
Optimised for: relationship modeling + reasoning + governance over pure vector
Anti-fit: not for purely-vector or simple-RAG use cases (graph adds setup cost)
Pros & cons
Pros
Strong at trillion-edge scale; popular in China for fraud / social-network workloads.
Cons
Heavy operational overhead; documentation in English lags Chinese resources.
Claims & capabilities
100× faster path queries. Open-source + commercial.
Technical surface
- API surface
- nGQL, SDK: Python, Java, Go, JS, C++
- Backend storage
- custom (RocksDB-backed distributed graph)
- Deployment
- Both (self-hosted + NebulaGraph Cloud)
- Embedding model
- BYO
- Multi-tenancy
- namespace
- MCP
- no first-party MCP adapter published as of 2026-05; community connectors may exist.
- A2A
- no Google A2A (Agent2Agent) integration documented as of 2026-05.
- OpenTelemetry
- via Prometheus
Alternatives to NebulaGraph → live options ranked by shared design, licence, hosting and MCP support
Similar systems
Other knowledge-graph platforms in the catalog, ranked by inbound references.
- Neo4j T1
Property graph DB with Cypher; native vector search; Aura Agent + MCP server for graph-as-memory. $100M GenAI investment in 2025.
- Amazon Neptune Analytics T1
Vector index on graph nodes queryable via openCypher. Mem0 integration GA 2025; Cognee integration for agentic RAG. Combines semantic recall with multi-hop traversal in one managed service.
- FalkorDB T2
Native GraphRAG SDK. Graph-memory backend for Mem0; MCP server via Graphiti integration; context graphs for long-term agent memory.
- ArangoDB T1
HybridGraphRAG combines vector search, graph traversal, full-text in one AQL query. ArangoGraphML for ML pipelines; LangChain integration. The company now brands itself Arango (Arango Contextual Data Platform unifying graph, vector, document and search), with ArangoDB as its database.
- Kuzu T2
Embedded property-graph database (Cypher) with a built-in vector index and full-text search, widely used as an embedded store for agent memory and GraphRAG. The kuzudb/kuzu repository was archived on 2025-10-10 after Apple acquired the company; 0.11.3 is the final release and earlier releases remain usable.
- Memgraph T2
In-memory GraphRAG engine. Memgraph 3.0 adds native vector search alongside graph traversal. LangChain toolkit.
Sources (44 cited facts, 4 third-party)
Each fact links to the page it came from; the badge says who published it (how to read sources).
- What it is Graph + vector + text hybrid retrieval vendor
- What it does & what's distinct v5.2 adds graph-vector-text hybrid retrieval natively. MCP server for Claude/GPT agents.… vendor
- Claims / benefits 100× faster path queries. Open-source + commercial. vendor
- Modalities text vendor
- Created 2018 vendor
- Latest release v3.8.0 OSS line (version referenced by repo docs; release date not captured) repo
- License Apache-2.0 repo
- GitHub vesoft-inc/nebula — ~12.4k stars, active (commit date not captured) repo
- Mindshare ~50 (Vesoft/Neb jobs vendor
- Funding $18M total (Seed + pre-A); investors: Redpoint China Ventures, Matrix Partners China, So… third-party
- Pricing OSS (Apache-2.0) + NebulaGraph Enterprise (commercial) vendor
- Deployment Both (self-hosted + NebulaGraph Cloud) vendor
- HQ US (Cupertino CA; engineering in China) third-party
- Founders / pedigree Sherman Ye (founder/CEO) third-party
- Memory volume / scale trillion-edge graphs (vendor claim) vendor
- Performance Vendor benchmark: 100× faster than competing graph DBs on path queries at 100B+ vertex s… vendor
- API surface nGQL, SDK: Python, Java, Go, JS, C++ vendor
- Backend storage custom (RocksDB-backed distributed graph) vendor
- Multi-tenancy namespace vendor
- Encryption at-rest + in-transit vendor
- SSO / RBAC RBAC only vendor
- Embedding model BYO vendor
- Versioning immutable append-log vendor
- Schema evolution schema with migration vendor
- Namespace primitives per-tenant vendor
- Contradiction handling always overwrite (last-write-wins) vendor
- Forgetting policy none (permanent) vendor
- OTel via Prometheus vendor
- Import / export CSV, GraphML; nebula-dump vendor
- Validated verticals financial-services, healthcare, legal, government, internal IT, KM vendor
- Time to running <1hr (Docker / managed cloud) to <1week (enterprise procurement) vendor
- Anti-fit not for purely-vector or simple-RAG use cases (graph adds setup cost) vendor
- Optimised for relationship modeling + reasoning + governance over pure vector vendor
- Adjacent infrastructure BYO LLM; bundled graph store; some require additional vector index vendor
- Pros Strong at trillion-edge scale; popular in China for fraud / social-network workloads. vendor
- Cons Heavy operational overhead; documentation in English lags Chinese resources. vendor
- Project & sources nebula-graph.io vendor
- cost-pricing-model subscription vendor
- cost-last-verified 2026-06-29 vendor
- architecture-deployment-locus hybrid repo
- licensing-bucket open-core vendor
- positioning-platform-vs-product platform vendor
- taxonomy-three-layer-rollup model-infra repo
- developer-activity-opendigger {"activity":10.72,"as_of":"2026-09","openrank_12mo":1.84,"openrank_current":0.78,"partic… third-party
What changed
Changes to this record's lifecycle, licence, release, pricing and hosting facts, from the catalog's git history. Subscribe (Atom)
Related systems
Referenced by (1)
- LlamaIndex (framework) integrates with — LlamaIndex has an official graph store integration package llama-index-graph-stores-nebula in its repo. (verified 2026-10-29)