Nobleblocks Mcp — independently scanned and version-tracked by SaferSkills.
SaferSkills independently audited Nobleblocks Mcp (Agent Skill) and scored it 87/100 (green). The audit ran 55 deterministic rules across Security, Supply Chain, Maintenance, Transparency, and Community; it found 1 high-severity and 1 lower-severity findings. The full rule-by-rule trace and per-finding evidence are below. Free, methodology-open.
Findings & checks · 2 flagged
The text {match} is the classic direct prompt-injection phrasing. Placed in a skill body that the agent reads as trusted instructions, it tries to make the agent abandon its prior rules and follow whatever comes next — a full system-prompt override.
ignore/disregard/forget … previous instructions sentence.A bulleted imperative like {match} tells the agent to never reveal, disclose, or mention something to the user. Used adversarially it can instruct the agent to hide its tool calls or lie about what it did — stripping the transparency a user relies on to trust the agent.
Every scanned point with the score it earned and what moved between them.
First recorded scan — no prior version to compare against.
The primary manifest — the file an agent reads to learn what this artifact does.
<!-- mcp-name: com.nobleblocks/nobleblocks-mcp -->
<p align="center"> <a href="https://registry.modelcontextprotocol.io"><img src="https://img.shields.io/badge/MCP_Registry-listed-brightgreen" alt="MCP Registry"></a> <a href="LICENSE"><img src="https://img.shields.io/badge/license-MIT-blue.svg" alt="License"></a> <a href="https://www.nobleblocks.com"><img src="https://img.shields.io/badge/papers-340M%2B-orange" alt="Papers"></a> </p>
Search 340 million deduplicated academic papers from Claude Desktop, Claude Web, ChatGPT, Cursor, VS Code Copilot, or any MCP-compatible tool. Covers 15+ academic databases — all cross-linked through a biomedical knowledge graph with 1.3M+ entities and 109M+ paper connections.
This is a thin authenticated client — all indexing, ranking, vector search, and knowledge graph traversal runs on the NobleBlocks backend. You get fast results without managing any infrastructure.
| Source | Papers | Updates |
|---|---|---|
| OpenAlex | ~250M works | Daily |
| Semantic Scholar | ~220M papers | Weekly |
| PubMed / MEDLINE | ~41M articles | Daily |
| Europe PMC | ~43M articles | Daily |
| Crossref | Incremental | Daily |
| arXiv | ~2.5M preprints | Daily |
| bioRxiv / medRxiv | ~1K/day | Daily |
| ClinicalTrials.gov | ~582K trials | Daily |
| Unpaywall | OA link resolution | Daily |
| DBLP | Computer science | Via OpenAlex |
| CORE | ~37M open access outputs | Coming soon |
| BASE (Bielefeld) | Discovery metadata | Via OpenAlex |
| DOAJ | Open access journals | Via Crossref |
| Papers with Code | ML/AI benchmarks | Weekly |
| Retraction Watch | Retraction status | Weekly |
| USPTO / EPO patents | ~9.3M patent-paper links | Daily |
| …and others |
All sources are cross-deduplicated on DOI, PMID, and arXiv ID. Total unique records after dedup: 340M+ (June 2026).
The search backend also maintains a biomedical knowledge graph (1.3M+ entities, 109M+ paper links) with genes, diseases, drugs, proteins, institutions, researchers, topics, genetic variants, and drug-target-disease relationships sourced from PubTator Central, DisGeNET, ChEMBL, UniProt, ROR, ORCID, Open Targets, and others.
| Tool | What it does |
|---|---|
search_papers | Full-text + semantic hybrid search with year/citation/source filters |
get_paper | Fetch metadata by DOI, PMID, arXiv ID, or OpenAlex ID |
find_similar | Find papers related by meaning, not just keyword matching |
get_citation_graph | Citation network — references and citing papers |
search_by_entity | Find papers linked to a gene, drug, disease, or institution via the KG |
create_literature_review | AI-generated structured lit review with citations (Pro) |
All usage requires a free NobleBlocks account. Sign up takes 30 seconds:
Free plan: 100 searches/day, 5 similar/day, citation graph access. Pro plan: 5,000 searches/day, literature review generation, priority support.
The easiest way to get started is the remote connector — no API keys, no Python install:
https://mcp.nobleblocks.com/mcpuvx nobleblocks-mcpAdd to your Claude Desktop config (~/Library/Application Support/Claude/claude_desktop_config.json on macOS):
{
"mcpServers": {
"nobleblocks": {
"command": "nobleblocks-mcp",
"env": {
"NOBLEBLOCKS_API_KEY": "nb_pk_your_key_here"
}
}
}
}Restart Claude Desktop. The NobleBlocks tools will appear in the tools list.
Add to .vscode/mcp.json in your project:
{
"servers": {
"nobleblocks": {
"command": "nobleblocks-mcp",
"env": {
"NOBLEBLOCKS_API_KEY": "nb_pk_your_key_here"
}
}
}
}Point your editor's MCP settings at the nobleblocks-mcp command with stdio transport. Set NOBLEBLOCKS_API_KEY in the environment.
You can also search directly from the terminal:
# Search papers
nobleblocks search "CRISPR base editing" --limit 5 --min-year 2022
# Get a specific paper
nobleblocks get 10.1038/s41586-020-2649-2
# Find similar papers
nobleblocks similar "Attention Is All You Need"
# Citation graph
nobleblocks citations 10.1038/s41586-020-2649-2 --direction bothAll CLI commands require NOBLEBLOCKS_API_KEY set in your environment (or pass --key).
| Variable | Default | Description |
|---|---|---|
NOBLEBLOCKS_API_KEY | (required) | Your API key from nobleblocks.com |
NOBLEBLOCKS_API_BASE | https://www.nobleblocks.com | API endpoint |
LOG_LEVEL | INFO | Logging verbosity |
Once configured, ask naturally in Claude/Cursor:
"Find the most-cited papers on CRISPR base editing from 2022-2024"
"Show me papers similar to 'Attention Is All You Need' by Vaswani"
"What papers cite DOI 10.1038/s41586-020-2649-2?"
"Find papers linking BRCA1 to drug resistance"
"Generate a literature review on CAR-T cell therapy in solid tumors"
git clone https://github.com/nobleblocks/nobleblocks-mcp.git
cd nobleblocks-mcp
pip install -e .
# Test with MCP Inspector
npx @modelcontextprotocol/inspector nobleblocks-mcpMIT — see LICENSE.
Built by NobleBlocks — the academic research platform for the AI era.
~30 seconds. Free. No account. Every finding cites a rule and a line of evidence.