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NobleBlocks MCP Server
Enables searching and exploring 340 million academic papers from 15+ databases with semantic search, citation graphs, and knowledge graph connections for biomedical entities.
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// key findings
✅
16 tools verified — handlers match their declared behaviour
8 read-only tools verified — handlers contain no write/delete/exec
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
✅
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
🔐
You'll be asked for 6 credentials: NOBLEBLOCKS_API_KEY, NB_INTERNAL_TOKEN, DB_PASS, LENS_API_KEY, EPO_CONSUMER_KEY, EPO_CONSUMER_SECRET
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// required environment variables
This server reads these from
process.env. You'll be asked to provide them before it can run.config
NOBLEBLOCKS_API_BASE🔐 secret
NOBLEBLOCKS_API_KEY— "": "nb_pk_your_key_here"config
OAUTH_TABLE_NAMEconfig
AWS_REGIONconfig
AWS_DEFAULT_REGIONconfig
MCP_BASE_URLconfig
CONSENT_PAGE_URLconfig
LOG_LEVEL— INFO Logging verbosity🔐 secret
NB_INTERNAL_TOKENconfig
MCP_HOSTconfig
MCP_PORTconfig
MCP_VERSIONconfig
RATE_LIMIT_TRIALconfig
RATE_LIMIT_FREEconfig
RATE_LIMIT_PROconfig
RATE_LIMIT_PER_MINUTEconfig
AUDIT_LOG_FILEconfig
DB_HOSTconfig
DB_PORTconfig
DB_NAMEconfig
DB_USER🔐 secret
DB_PASS🔐 secret
LENS_API_KEY🔐 secret
EPO_CONSUMER_KEY🔐 secret
EPO_CONSUMER_SECRET// full audit trail
The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.
// improvement guidance — verified publishers only
We have 4 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
[](https://m8ven.ai/mcp/nobleblocks-nobleblocks-mcp-16o7r5)commit: c54a6386306708cbc4029e9da9bf39e602165484
code hash: 06cef94828d6ed2738a535e6e0aa0c13cb36dba0e6e48097f7ea41f65d7d9c5d
verified: 7/30/2026, 8:48:43 AM