Neo4j
Property graph DB with Cypher; native vector search; Aura Agent + MCP server for graph-as-memory. $100M GenAI investment in 2025.
Active · Verified 2026-10-26 · fresh as of 2026-10-26 · 83 cited facts, 6 with a third-party source · 1 recorded change · Suggest a correction
At a glance
- Type
- Property graph + vectors + Aura Agent vendor fix
- Tier
- T1
- Section
- Knowledge-graph platforms
- Latest release
- 2026.07 CalVer series (current default branch; exact patch and date not captured) repo fix
- Pricing
- Free + paid vendor fix
- Funding
- $325M total $2.0B val Series F · 2021-06 vendor fix
- Freshness
- 2026-10-26 fix
- Layer
- model-infra repo fix
- SDK languages
- csharp, go, java, python, rest, typescript vendor fix
- Protocols
- mcp-server repo fix
- Developer activity
- OpenRank 8.78 (12-mo avg 5.83) · 29 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
Largest graph database community by orders of magnitude; Cypher is the de-facto graph query language; strong native AI/RAG integrations.
Cons
Property-graph model can be awkward for RDF/semantic-web workloads; clustering and scale-out can get expensive.
Claims & capabilities
$200M ARR milestone (2024); $325M total funding at $2B valuation (Series F, June 2021); 2,000+ Neo4j jobs worldwide on LinkedIn; 843 in US; Fortune 500 customer base (Daimler, Dun & Bradstreet, EY, IBM, Merck); $100M GenAI investment in 2025; native Aura Agent + MCP server for graph-as-memory
Technical surface
- API surface
- Bolt, REST, GraphQL, Cypher, SDK: many
- Backend storage
- custom (native graph store)
- Deployment
- Both (self-hosted + managed cloud) — Community/Enterprise self-managed; Neo4j Aura cloud
- Embedding model
- BYO
- Multi-tenancy
- AuraDB Virtual Dedicated Cloud / AuraDS Enterprise: dedicated AWS/Azure/GCP account/subscription/project per customer; PrivateLink supported
- MCP
- yes — official neo4j/mcp (product team); Neo4j Labs also ships neo4j-contrib/mcp-neo4j
- A2A
- no Google A2A (Agent2Agent) integration documented as of 2026-05.
- OpenTelemetry
- first-class — Neo4j metrics + OTel
Compare Neo4j with…
Alternatives to Neo4j → live options ranked by shared design, licence, hosting and MCP support
Similar systems
Other knowledge-graph platforms in the catalog, ranked by inbound references.
- 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.
- Diffbot T1
Auto-built knowledge graph from web crawl. 1T+ facts, 10B+ entities. GraphRAG-fine-tuned model based on open-source Llama 3.3.
Sources (82 cited facts, 6 third-party)
Each fact links to the page it came from; the badge says who published it (how to read sources).
- What it is Property graph + vectors + Aura Agent vendor
- What it does & what's distinct Property graph DB with Cypher; native vector search; Aura Agent + MCP server for graph-a… vendor
- Claims / benefits $200M ARR milestone (2024); $325M total funding at $2B valuation (Series F, June 2021); … vendor
- Modalities text vendor
- Created 2024-12 vendor
- Latest release 2026.07 CalVer series (current default branch; exact patch and date not captured) repo
- License GPL-3.0 (Community Edition); Enterprise Edition proprietary repo
- GitHub neo4j/neo4j — ~17.2k stars, active (default branch 2026.07) repo
- Mindshare 1 inbound 2000 jobs 717 HN · 3 press third-party
- Funding $325M total $2.0B val Series F · 2021-06 vendor
- Customers / scale $200M ARR 501-1000 ppl Daimler, Dun & Bradstreet, EY, IBM vendor
- Pricing Free + paid vendor
- Compliance SOC 2 Type II; ISO 27001; GDPR-compliant vendor
- Data handling Processes customer data solely on behalf of the customer (data controller); does not sel… vendor
- Deployment Both (self-hosted + managed cloud) — Community/Enterprise self-managed; Neo4j Aura cloud repo
- HQ US vendor
- Founders / pedigree Emil Eifrem (CEO/co-founder), Johan Svensson, Peter Neubauer; founded 2007 in Sweden third-party
- Memory volume / scale no scale claim (billions of nodes in practice) vendor
- Performance 500k+ queries/sec on standard hardware; vendor-reported sub-second multi-hop traversals … vendor
- API surface Bolt, REST, GraphQL, Cypher, SDK: many vendor
- Backend storage custom (native graph store) vendor
- Multi-tenancy AuraDB Virtual Dedicated Cloud / AuraDS Enterprise: dedicated AWS/Azure/GCP account/subs… vendor
- Encryption AES at rest (via GCP/AWS KMS), TLS for cluster traffic; CMK via cloud KMS; ISO 27001 + S… vendor
- SSO / RBAC SSO + RBAC vendor
- Embedding model BYO vendor
- Consistency strong vendor
- Versioning snapshots vendor
- Tombstoning hard-delete supported vendor
- Schema evolution schema with migration vendor
- Namespace primitives per-tenant vendor
- Contradiction handling always overwrite (last-write-wins) vendor
- Forgetting policy user-controlled forget vendor
- MCP support yes — official neo4j/mcp (product team); Neo4j Labs also ships neo4j-contrib/mcp-neo4j repo
- OTel first-class — Neo4j metrics + OTel vendor
- Webhooks / events via APOC triggers / CDC vendor
- Import / export Cypher dump, CSV, JSON, Parquet, GraphML vendor
- Runtimes Java, JavaScript, Python (official drivers; Go and .NET drivers also exist) repo
- 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 Largest graph database community by orders of magnitude; Cypher is the de-facto graph qu… vendor
- Cons Property-graph model can be awkward for RDF/semantic-web workloads; clustering and scale… vendor
- Project & sources neo4j.com Neo4j MCP server Graphiti memory writeup vendor
- obs-langsmith yes third-party
- obs-opentelemetry yes vendor
- obs-datadog yes third-party
- obs-helicone no vendor
- obs-weave no vendor
- obs-langfuse no vendor
- obs-arize no vendor
- obs-custom First-party Neo4j Ops Manager; Prometheus exporter; full OTLP vendor
- cost-token-budget no vendor
- cost-prompt-caching no vendor
- cost-semantic-caching no vendor
- cost-batching no vendor
- cost-model-routing no vendor
- cost-streaming-only no vendor
- cost-observability-cost-attribution no vendor
- eval-langsmith-evals yes third-party
- eval-braintrust no vendor
- eval-weights-and-biases-agent no vendor
- eval-helicone-evals no vendor
- eval-custom-test-harness no vendor
- eval-human-loop no vendor
- eval-production-traffic-replay no vendor
- commit-trajectory [{"ym":"2024-12","cum":13},{"ym":"2025-03","cum":38},{"ym":"2025-04","cum":70},{"ym":"20… repo
- download-trajectory [{"ym":"2025-11","monthly":3551436,"cum":3551436},{"ym":"2025-12","monthly":7100210,"cum… registry
- cost-input-usd-per-mtok 0 vendor
- cost-output-usd-per-mtok 0 vendor
- cost-tier free vendor
- cost-pricing-model free-tier vendor
- cost-last-verified 2026-06-29 vendor
- architecture-deployment-locus hybrid vendor
- licensing-bucket open-core vendor
- positioning-platform-vs-product platform vendor
- taxonomy-three-layer-rollup model-infra repo
- developer-activity-opendigger {"activity":42.35,"as_of":"2026-09","openrank_12mo":5.83,"openrank_current":8.78,"partic… third-party
- compliance-certifications ccpa,csa-star,gdpr,hipaa,iso27001,iso27017,iso27018,soc2-type2,soc3 vendor
- sdk-languages csharp,go,java,python,rest,typescript vendor
- protocol-support mcp-server repo
What changed
Changes to this record's lifecycle, licence, release, pricing and hosting facts, from the catalog's git history. Subscribe (Atom)
- 2026-10-26
- License “MIT” → “GPL-3.0 (Community Edition); Enterprise Edition proprietary” source
- Latest release “mcp-neo4j-cyphe… 2026-04-10” → “2026.07 CalVer series (current default branch; exact patch and date not captured)” source
- Deployment “Both” → “Both (self-hosted + managed cloud) — Community/Enterprise self-managed; Neo4j Aura cloud” source
- MCP support “via official adapter — neo4j-mcp” → “yes — official neo4j/mcp (product team); Neo4j Labs also ships neo4j-contrib/mcp-neo4j” source
Related systems
References (19)
- Bedrock AgentCore (AWS) integrates with — Neo4j's GenAI ecosystem docs have a Bedrock AgentCore (AWS) integration page. (verified 2026-10-29)
- Claude Agent SDK integrates with — Neo4j's GenAI ecosystem docs have a Claude Agent SDK integration page. (verified 2026-10-29)
- CrewAI integrates with — Neo4j's GenAI ecosystem docs have a CrewAI integration page. (verified 2026-10-29)
- DSPy integrates with — Neo4j's GenAI ecosystem docs have a DSPy integration page. (verified 2026-10-29)
- Genkit integrates with — Neo4j's GenAI ecosystem docs have a Genkit integration page. (verified 2026-10-29)
- Google Agent Development Kit (ADK) integrates with — Neo4j's GenAI ecosystem docs have a Google Agent Development Kit (ADK) integration page. (verified 2026-10-29)
- Haystack (framework) integrates with — Neo4j's GenAI ecosystem docs have a Haystack (framework) integration page. (verified 2026-10-29)
- LangChain (framework) integrates with — Neo4j's GenAI ecosystem docs have a LangChain (framework) integration page. (verified 2026-10-29)
- LangGraph (orchestration) integrates with — Neo4j's GenAI ecosystem docs have a LangGraph (orchestration) integration page. (verified 2026-10-29)
- LlamaIndex (framework) integrates with — Neo4j's GenAI ecosystem docs have a LlamaIndex (framework) integration page. (verified 2026-10-29)
- Microsoft Agent Framework integrates with — Neo4j's GenAI ecosystem docs have a Microsoft Agent Framework integration page. (verified 2026-10-29)
- Microsoft Semantic Kernel integrates with — Neo4j's GenAI ecosystem docs have a Microsoft Semantic Kernel integration page. (verified 2026-10-29)
- Model Context Protocol (MCP spec) integrates with — Neo4j's GenAI ecosystem docs have a Model Context Protocol (MCP spec) integration page. (verified 2026-10-29)
- OpenAI Agents SDK integrates with — Neo4j's GenAI ecosystem docs have a OpenAI Agents SDK integration page. (verified 2026-10-29)
- Pydantic-AI integrates with — Neo4j's GenAI ecosystem docs have a Pydantic-AI integration page. (verified 2026-10-29)
- Salesforce Agentforce integrates with — Neo4j's GenAI ecosystem docs have a Salesforce Agentforce integration page. (verified 2026-10-29)
- Spring AI ChatMemory integrates with — Neo4j's GenAI ecosystem docs have a Spring AI ChatMemory integration page. (verified 2026-10-29)
- Strands Agents (AWS) integrates with — Neo4j's GenAI ecosystem docs have a Strands Agents (AWS) integration page. (verified 2026-10-29)
- Vercel AI SDK integrates with — Neo4j's GenAI ecosystem docs have a Vercel AI SDK integration page. (verified 2026-10-29)
Referenced by (14)
- Cognee depends on at runtime — adjacent-infrastructure cell: BYO LLM; bundles Kuzu/Neo4j for graph + LanceDB for vectors
- Graphiti MCP Server (Zep) depends on at runtime — backend-storage cell: Neo4j
- Haystack (framework) integrates with — Haystack integrations directory has a Neo4j integration page ("Use the Neo4j database with Haystack"). (verified 2026-10-29)
- LangChain (framework) integrates with — LangChain docs have a Neo4j integration provider page (Native graph database and analytics platform). (verified 2026-10-29)
- LlamaIndex (framework) integrates with — LlamaIndex has an official vector store integration package llama-index-vector-stores-neo4jvector in its repo. (verified 2026-10-29)
- Mem0 depends on at runtime — adjacent-infrastructure cell: BYO LLM provider; bundles vector store (Qdrant default) and graph store (Neo4j optional)
- Memary depends on at runtime — adjacent-infrastructure cell: BYO LLM; Neo4j required
- Neo4j Agent Memory (Neo4j Labs) depends on at runtime — Store conversations, build knowledge graphs, and let your agents learn from their own reasoning — all backed by Neo4j.
- Phidata (now Agno) integrates with — Agno ships a neo4j toolkit (agno.tools.neo4j). (verified 2026-10-29)
- Qdrant integrates with — Qdrant's documentation has a Neo4j integration page. (verified 2026-10-29)
- Spring AI ChatMemory integrates with — pluggable ChatMemoryRepository backends (in-memory, JDBC, Cassandra, Neo4j)
- TrueFoundry AI Gateway integrates with — TrueFoundry AI Gateway ecosystem lists a Neo4j MCP server integration page. (verified 2026-10-29)
- Zep — governance posture depends on at runtime — backend-storage cell: Postgres + Neo4j
- Zep & Graphiti integrates with · depends on at runtime — Graphiti README lists Neo4j as a supported graph database backend. (verified 2026-10-29)