Em-dash & Typographic Purifier

Convert AI-typical plain ASCII into proper typography: -- and --- become en/em dashes, straight quotes become curly/smart quotes (locale-aware), ... becomes a single ellipsis …, spaced dashes are tightened, and repeated spaces collapse — while fenced ``` code blocks and `inline` code are left untouched.

html· HTML result

Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/em-dash-and-typographic-purifier' \
  -H 'Content-Type: application/json' \
  -d '{"text":"The API -- which we launched in 2020 -- was \"revolutionary\" according to users... It'\''s fast, reliable, and \"just works\".","locale":"en","conversions":"all","fixSpacedDash":true,"fixSpaces":true,"preserveCode":true}'

API reference

Send a POST request with your inputs as JSON. File parameters require a separate upload first.

Endpoint

HTTP

POST https://api.elysiatools.com/en/api/tools/em-dash-and-typographic-purifier

Parameters

Name	Type	Required	Description
text	textarea	Yes	—
locale	select	No	—
conversions	select	No	—
fixSpacedDash	checkbox	No	—
fixSpaces	checkbox	No	—
preserveCode

MCP integration

Add this tool to your Model Context Protocol server so AI agents can list and call it.

Server configuration

Add this block to your MCP client configuration:

mcp.json

{
  "mcpServers": {
    "elysiatools-em-dash-and-typographic-purifier": {
      "name": "em-dash-and-typographic-purifier",
      "description": "Convert AI-typical plain ASCII into proper typography: -- and --- become en/em dashes, straight quotes become curly/smart quotes (locale-aware), ... becomes a single ellipsis …, spaced dashes are tightened, and repeated spaces collapse — while fenced ``` code blocks and `inline` code are left untouched.",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=em-dash-and-typographic-purifier",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

List available tools

After connecting to the SSE endpoint, list the exposed tools:

tools/list

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/list"
}

Call this tool

Invoke the tool by its id, passing arguments built from its parameters:

tools/call

{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "tools/call",
  "params": {
    "name": "em-dash-and-typographic-purifier",
    "arguments": {
  "text": "The API -- which we launched in 2020 -- was \"revolutionary\" according to users... It's fast, reliable, and \"just works\".",
  "locale": "en",
  "conversions": "all",
  "fixSpacedDash": true,
  "fixSpaces": true,
  "preserveCode": true
}
  }
}

Response format

HTML result

JSON

{
  "result": "<div>Processed HTML content</div>",
  "error": "Error message (optional)",
  "message": "Notification message (optional)",
  "metadata": {
    "key": "value"
  }
}

Em-dash & Typographic Purifier — API & MCP | Elysia Tools