NebulaGraph MCP Server

MCP server for NebulaGraph — an open-source distributed graph database designed for large-scale, high-performance graph data storage and queries. From the nebula-contrib community organization. Enables AI agents to query NebulaGraph using nGQL (NebulaGraph Query Language), manage graph schemas, explore knowledge graphs, and support graph-based AI reasoning workflows.

Evaluated Mar 06, 2026 (0d ago) vcurrent

Homepage ↗ Repo ↗ Databases nebulagraph graph-database knowledge-graph mcp-server nebula-contrib gql

⚙ Agent Friendliness

/ 100

Can an agent use this?

🔒 Security

/ 100

Is it safe for agents?

⚡ Reliability

/ 100

Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality

Documentation

Error Messages

Auth Simplicity

Rate Limits

🔒 Security

TLS Enforcement

Auth Strength

Scope Granularity

Dep. Hygiene

Secret Handling

DB credentials. HTTPS for cloud. Least-privilege users recommended. Community org.

⚡ Reliability

Uptime/SLA

Version Stability

Breaking Changes

Error Recovery

Best When

A team using NebulaGraph for knowledge graph storage wants AI agents to query graph data, explore relationships, and reason over connected data in automated workflows.

Avoid When

You use Neo4j or other graph databases. NebulaGraph uses nGQL (not Cypher) — agents need nGQL knowledge. nebula-contrib is community, not official vesoft.

Use Cases

• Querying NebulaGraph knowledge graphs from AI reasoning agents
• Exploring graph relationships and paths from graph analysis agents
• Managing graph schemas and data ingestion from data engineering agents
• Building knowledge graph-augmented AI applications on NebulaGraph

Not For

• Teams not using NebulaGraph (graph DB specific)
• Relational data without graph relationships (use SQL MCPs)
• Teams using other graph databases (Neo4j, Amazon Neptune)

Interface

REST API

GraphQL

gRPC

MCP Server

Yes ↗

SDK

Yes

Webhooks

Authentication

Methods: username_password

OAuth: No Scopes: No

NebulaGraph user credentials required. Configure connection to NebulaGraph host, port, user, and password.

Pricing

Model: free

Free tier: Yes

Requires CC: No

NebulaGraph open source is free (Apache 2.0). MCP server is free community tool from nebula-contrib.

Agent Metadata

Pagination

cursor

Idempotent

Partial

Retry Guidance

Not documented

Known Gotchas

⚠ NebulaGraph uses nGQL (not Cypher) — agents need nGQL-specific knowledge for effective queries
⚠ Graph schemas must be designed in advance — agents can't infer schema without explicit documentation
⚠ nebula-contrib is community org, not official vesoft team — verify feature coverage
⚠ Large graph traversals can be expensive — implement query timeouts and depth limits

Alternatives

neo4j-mcp-server apache-age-mcp-server

Full Evaluation Report

Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for NebulaGraph MCP Server.

$99

API endpoint ↗ Agent guide ↗ Report inaccuracy

Scores are editorial opinions as of 2026-03-06.