graph-mcp (cao-jacky/graph-mcp) is an MCP server listed on the M8ven Trust Index. It scores 67 out of 100, grade C. It declares 9 tools. No publisher has claimed this listing.

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C
Limited view
67/100
21 days ago

graph-mcp

Exposes a Neo4j knowledge-graph index over personal markdown notes to LLM agents via MCP, enabling semantic search, tag navigation, and relationship discovery.

→ cao-jacky/graph-mcp· listed on glama

Limited view. Automated analysis covers part of this stack. Findings reflect what we verified. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

Limited view: static analysis for Python is partially covered.

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Who stands behind it

cao-jacky

Source: Glama

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// key findings
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
🔐
You'll be asked for 3 credentials: NEO4J_PASSWORD, GRAPH_MCP_LLM_API_KEY, GRAPH_MCP_AUTH_TOKEN
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configGRAPH_MCP_KB_ROOTcp .env.example .env # set and NEO4J_PASSWORD
configNEO4J_URIenv =bolt://127.0.0.1:7687 \
configNEO4J_USER/ NEO4J_PASSWORD / NEO4J_DATABASE neo4j / — / neo4j Credentials.
🔐 secretNEO4J_PASSWORDcp .env.example .env # set GRAPH_MCP_KB_ROOT and
configNEO4J_DATABASENEO4J_USER / NEO4J_PASSWORD / neo4j / — / neo4j Credentials.
configGRAPH_MCP_EMBED_DIM4096 Must match the model and the vector index.
configGRAPH_MCP_EMBED_BATCH16 Texts per embedding request.
configGRAPH_MCP_EMBED_TIMEOUT
configGRAPH_MCP_LLM_MODEL
🔐 secretGRAPH_MCP_LLM_API_KEY
configGRAPH_MCP_LLM_MAX_TOKENS
configGRAPH_MCP_LLM_TIMEOUT
configGRAPH_MCP_LLM_CONCURRENCY(default 1) parallelises both across documents and
configGRAPH_MCP_MAX_ENTITIES_PER_DOC
configGRAPH_MCP_CHUNK_WORDS/ _OVERLAP 350 / 60 Chunk sizing.
configGRAPH_MCP_CHUNK_OVERLAP
configGRAPH_MCP_ENTITY_MERGE_THRESHOLD(0.92) within the same entity type.
configGRAPH_MCP_TRANSPORTwill simply block, so the image sets =streamable-http.
configGRAPH_MCP_HTTP_HOST/ _PORT / _PATH 127.0.0.1 / 8000 / /mcp Listen address and mount path
configGRAPH_MCP_HTTP_PORT
configGRAPH_MCP_HTTP_PATH
🔐 secretGRAPH_MCP_AUTH_TOKENexport =$(openssl rand -hex 32)
configGRAPH_MCP_ALLOWED_HOSTSunset Comma-separated Host allowlist, e.g. graph-mcp:8000,10.0.0.5:
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

9/9 tools missing one or more hints — semantic_search (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); documents_by_tag (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_tags (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +6 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Tool inputs are validated

8/9 tool handlers declare input schemas (89%)

Declare an inputSchema with zod/joi/yup on every tool definition.

Tool handlers catch errors

Only 0/9 tool handlers wrap calls in try/catch (0%)

Wrap each tool handler body in try/catch and return a structured error response.

License file

No license file

Add a LICENSE file (MIT, Apache-2.0, etc.).

Tests exist

No test files found

Add tests that exercise each declared tool.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 6 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/cao-jacky-graph-mcp-eyl4os)](https://m8ven.ai/mcp/cao-jacky-graph-mcp-eyl4os)
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commit: e635f1a2c9e6257a318d1ceb6be42927c78b9bf2
code hash: 626133732920936d562a3c25f974b57707a7ba696157f7f38d60eacf2a15dd1c
verified: 8/3/2026, 10:14:13 AM
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