nodecode-umt
Universal MCP Toolkit: Hacker News, arXiv and npm lookups. A Nodecode rewrite of Markgatcha/universal-mcp-toolkit by Markgatcha.
The plugin ships three MCP servers that need no configuration at all — Hacker
News, arXiv and the npm registry. This cell is those three, reimplemented in
Lisp against the same public APIs: eleven read-only tools the model can call,
the same lookups as functions in the umt package for eval, and /umt to ask
by hand. Nothing to install, nothing to sign in to, no key.
Get it
Tell the agent "add the umt cell", or run nodecode add nc://umt.
Set it up
Nothing is required: all three APIs are public. The umt section points at
them and bounds a call, and every default works as it is.
"umt": {
"hn_api_base": "https://hacker-news.firebaseio.com/v0",
"hn_search_base": "https://hn.algolia.com/api/v1",
"arxiv_api_base": "https://export.arxiv.org/api/query",
"npm_registry_base": "https://registry.npmjs.org",
"default_category": "cs.AI",
"timeout": 20
}
default_category is the arXiv category a recent-papers call reads when it
names none; a base points at a mirror or a proxy; timeout is one call's
ceiling in seconds.
Use it
Ask in words ("what is on Hacker News", "find me arXiv papers on diffusion models", "what does express depend on"), or call a verb through eval:
(umt:top-stories :limit 10) ; the front page, by rank (umt:new-stories :limit 10) (umt:best-stories) ; newest, and HN's best (umt:search-stories "common lisp" :limit 10) ; Algolia keyword search (umt:item-thread 12345 :depth 2 :max-children 20) ; one discussion tree (umt:search-papers "diffusion models" :max 5 :sort "relevance") (umt:paper "2405.12345") ; one paper, whole abstract (umt:recent-papers :category "cs.AI" :max 5) ; a category's newest (umt:search-packages "mcp server" :limit 10) (umt:package-metadata "express") ; latest, licence, dist-tags (umt:package-versions "express" :limit 20) ; newest first, with dates
Each answers text a reader or a model can use: a story with its points,
comments, author, date, url and item id; a paper with its authors, categories,
abs and pdf urls and abstract; a package with the registry's own metadata.
The model has the same eleven as tools — hn_top_stories,
hn_search_stories, hn_item_thread, arxiv_search_papers, arxiv_paper,
npm_search_packages, npm_package_metadata, and the rest.
/umt alone says where the three bases point; /umt hn QUERY,
/umt arxiv QUERY and /umt npm QUERY search without leaving the shell.
A call that fails answers ERROR: UMT-ERROR: … naming the host, the status
and what it said, so a retry is informed. Nothing is cached: a ranking is the
ranking now.
