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Writing Style Checker MCP Server

by theserverlessdev Your server? Claim it
answering

Writing Style Checker is answering right now. Last checked 14 min ago. 57 installs a week from npm. It exposes 3 tools. Last commit 14 Oct 2026.

Prose linter + AI-slop detector: weasel words, passive voice, hedging, and research-cited AI tells

Installs per day peak 17 · avg 8 · -8% w/w
a month agotoday
Uptime history 91 days of history · worst day 93%
91 days agonow
100.0%
Uptime 24h
89 of 89 checks
3
Tools
read from the server
172 ms
Response time
average over 24h
57
Installs / week
npm and PyPI

What the code does

We read the source, 4 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.

Page executes code built at runtime src/lib/App.svelte:163 
    lineNumbersContainer.innerHTML = html;

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.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 14 min ago.

run in your terminal
claude mcp add wsc --transport http https://wsc.theserverless.dev/mcp
Settings → Connectors → Add custom connector, then paste this address
https://wsc.theserverless.dev/mcp
~/.codex/config.toml
[mcp_servers.wsc]
url = "https://wsc.theserverless.dev/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "wsc": {
      "url": "https://wsc.theserverless.dev/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "wsc": {
      "type": "http",
      "url": "https://wsc.theserverless.dev/mcp"
    }
  }
}

Available tools 3

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

fix
fix_duplicates
Remove duplicate adjacent words (case-insensitive, including across line breaks) and return the cleaned text plus the list of words that were removed. Read-only with no side effects: the fix is returned in the response, nothing is written anywhere. Use after check_text reports duplicate words; other issue types are report-only and have no auto-fix.
text
check_text
Analyze text for writing style issues: weasel words, passive voice, duplicate words, long sentences, nominalizations, hedging, filler adverbs, and research-cited AI tells. Read-only and stateless — text is analyzed in memory on the hosted server and never stored. Returns a plain-text report with each issue's line and column, the matched text, surrounding context, and the reason for AI tells; texts over 100,000 characters return an error message. This hosted server has no filesystem access — the wsc-mcp npm package adds a check_file tool for local files. It only reports issues — to auto-remove duplicate words, follow up with fix_duplicates.
word
list_word_lists
Return every detector word/phrase list with its entry count, config key, and sample entries, plus a link to the full browsable library. Read-only, takes no parameters, and returns the same catalog for a given release. Use it to see what the detectors match before tuning a config for check_text; not needed for ordinary checking.

Endpoints

URLTransportStateLatencyChecked
https://wsc.theserverless.dev/mcp streamable-http answering 124 ms 14 min ago

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Writing Style Checker — questions

Answers built from our own checks of this server.

What can Writing Style Checker do?
It exposes 3 tools, read directly from the server on our last check. Among them: check_text, fix_duplicates, list_word_lists. 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 Writing Style Checker working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 89 of 89 checks got a reply (100.0%), average response time 172 ms. The bar chart above shows every period we have measured.
How do I connect Writing Style Checker?
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 Writing Style Checker need an API key?
No. Writing Style Checker completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Writing Style Checker?
It answers our handshake in 172 ms on average, which is faster than 77% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.
How many people use Writing Style Checker?
The npm package wsc-mcp was installed 57 times in the last week. Week over week that is -8%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Writing Style Checker open source?
The code is open source: it is published under the MIT licence, written in TypeScript, 9 stars on GitHub and 1 open issue. The licence covers the code in the repository, not the hosted service at wsc.theserverless.dev, which runs on its operator's own terms.