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Readability

An MCP tool from the Text Toolkit server, hosted on mcp.hjlabs.in.

Score how easy an English text is to read: Flesch Reading Ease, Flesch-Kincaid grade, Gunning Fog, Coleman-Liau and Automated Readability Index, with the underlying counts and a plain-language verdict.

Name on the gateway: text__readability · read-only.

Parameters

NameTypeDescription
text requiredstringEnglish prose, at least one sentence.

How to call it

Through the Smart Gateway, any client can run it by name with call_tool, or let the gateway find it with search_tools:

call_tool arguments
{
  "name": "text__readability",
  "arguments": {
    "text": "…"
  }
}

Or connect the Text Toolkit server directly, which lists 43 tools including this one:

Run in your terminal
claude mcp add --transport http hj-text https://mcp.hjlabs.in/mcp/text \
  --header "Authorization: Bearer YOUR_API_KEY"

Try asking

Use the readability tool with text set to ….

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