Nobleblocks MCP Server

by nobleblocks Your server? Claim it

answering

Nobleblocks MCP is answering right now. Last checked 8 min ago. It exposes 11 tools. Last commit 8 Jun 2026.

Search 340M+ academic papers — citation graphs, semantic similarity, and AI literature reviews.

Uptime history 91 days of history · worst day 0%

91 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

841 ms

Response time

average over 24h

Stars

last commit 8 Jun 2026

What changed 15

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 28 October 2026. No other catalogue keeps this.

28 Oct 8 tools appeared cite, fetch, get_author and 5 more

28 Oct 3 tool descriptions were rewritten get_citation, get_paper, search_papers

28 Oct 3 tools changed the parameters they ask for get_citation, get_paper, search_papers

28 Oct a tool changed version

What the code does

We read the source, 2 d ago · tools taken from the live server · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Runs an external command patent-ingestors/patent_refresh_orchestrator.py:155

            result = subprocess.run(

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add nobleblocks-mcp --transport http https://mcp.nobleblocks.com/mcp

Settings → Connectors → Add custom connector, then paste this address

https://mcp.nobleblocks.com/mcp

~/.codex/config.toml

[mcp_servers.nobleblocks-mcp]
url = "https://mcp.nobleblocks.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "nobleblocks-mcp": {
      "url": "https://mcp.nobleblocks.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "nobleblocks-mcp": {
      "type": "http",
      "url": "https://mcp.nobleblocks.com/mcp"
    }
  }
}

Available tools 11

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

author

get_author

One researcher's public profile by ORCID iD: name, affiliation, topics, reported metrics, NobleID when recorded, and their most cited papers in the index.

authors

search_authors

Find researchers by name. Returns name, ORCID iD, OpenAlex id, affiliation and reported counts. Use get_author with an ORCID iD for the profile and top papers.

citation

get_citation

Format a citation for one paper as BibTeX, RIS or APA 7. The URL is the paper's NobleID ARK when it has a confirmed one, else its DOI. DOIs known to be unreliable are left out rather than guessed.

cite

cite

Citations for several papers at once, in one format, in the order given. Each entry links to the ARK or DOI; failures are listed per identifier instead of failing the whole call.

citing

get_citing_papers

Papers in the NobleBlocks index that cite this paper, most cited first. Citation links are still being loaded, so an empty answer is reported as such, not as 'never cited'.

fetch

fetch

Fetch one paper as {id, title, text, url, metadata}. `text` is the abstract plus a formatted citation; `url` is open access first.

paper

get_paper

Full metadata for one paper or trial: authors, journal, volume/issue/pages, identifiers (DOI, PMID, arXiv, OpenAlex, trial id, NobleID ARK when confirmed), retraction status, open access link, citation count, abstract and links (`links.best` is open access first).

papers

search_papers

Search the NobleBlocks index of scholarly papers by keyword relevance, with filters. Each result has title, authors, year, journal, DOI, citation count, an abstract excerpt, a NobleBlocks link and `best_link` (free full text when known, else the DOI/ARK). Use get_paper with a result's `id` for full metadata, or cite to cite it.

references

get_references

Papers this paper cites (its reference list) that are in the NobleBlocks index, most cited first.

search

Search scholarly papers and return citable results as {results: [{id, title, url}]}. `url` is open access first. Pass an `id` to fetch for the full text record.

trials

search_trials

Search clinical trial registrations (ClinicalTrials.gov or WHO ICTRP) held in the NobleBlocks index. Each result carries its registry id (`trial_id`, e.g. NCT01234567). Use get_paper with that id for the full record.

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.nobleblocks.com/mcp	streamable-http	answering	849 ms	8 min ago

Alternatives to Nobleblocks MCP

same job, measured the same way

Semantic Scholar MCP

by mrfentmen

Search academic papers and read citations from Semantic Scholar. No key required.

116 installs/wk local only

PapersFlow

by papersflow-ai

Academic research MCP server for paper search, citation checks, graphs, and deep research.

answering

Noodle Biomedical Literature Discovery MCP

by helena-bioinformatics

Search biomedical papers, inspect publication records, and traverse citation or semantic graphs.

7 tools answering

Arxiv MCP Server

by blazickjp

Search arXiv papers, download full text, semantic search, citation graphs, and alerts via MCP.

15 347 installs/wk local only

Semanticscholar

by smaboundless

Search 200M+ papers, authors, citations, and recommendations via Semantic Scholar

62 installs/wk local only

Google Scholar

by johnisanerd

Search Google Scholar for academic papers, citations, and author profiles.

answering

Dsh Lit Search

by flan246

Literature search, GB/T 7714/APA citations and BibTeX via Crossref, OpenAlex, Semantic Scholar.

314 installs/wk local only

OpenAlex Scientific Citation Graph & Research Search

by ceadigital

Search 250M+ academic works, citation graphs, DOIs, and institutional research via OpenAlex.

28 tools answering

Nobleblocks MCP — questions

Answers built from our own checks of this server.

What can Nobleblocks MCP do?

It exposes 11 tools, read directly from the server on our last check. Among them: cite, fetch, get_author, get_citation, get_citing_papers, get_paper and 5 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Nobleblocks MCP working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 841 ms. The bar chart above shows every period we have measured.

How do I connect Nobleblocks MCP?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Nobleblocks MCP need an API key?

No. Nobleblocks MCP completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 11 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Nobleblocks MCP?

It answers our handshake in 841 ms on average, which is faster than 8% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Nobleblocks MCP open source?

The code is open source: it is published under the MIT licence, written in Python and 1 stars on GitHub. The licence covers the code in the repository, not the hosted service at mcp.nobleblocks.com, which runs on its operator's own terms.