Development

Markdown Link Checker

Statically check Markdown links for format errors, broken anchors, and undefined references (no network requests)

text· Text resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/markdown-link-checker' \
  -H 'Content-Type: application/json' \
  -d '{"markdownInput":"Paste your Markdown with links to check...","checkLevel":"basic","reportFormat":"text"}'

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/markdown-link-checker

Parameters

Name	Type	Required	Description
markdownInput	textarea	Yes	—
checkLevel	select	No	—
reportFormat	select	No	—

Response format

Text result

JSON

{
  "result": "Processed text content",
  "error": "Error message (optional)",
  "message": "Notification message (optional)",
  "metadata": {
    "key": "value"
  }
}

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-markdown-link-checker": {
      "name": "markdown-link-checker",
      "description": "Statically check Markdown links for format errors, broken anchors, and undefined references (no network requests)",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=markdown-link-checker",
      "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": "markdown-link-checker",
    "arguments": {
  "markdownInput": "Paste your Markdown with links to check...",
  "checkLevel": "basic",
  "reportFormat": "text"
}
  }
}

Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).

Questions or issues? Contact [email protected]

Browse tools Open tool

curl -X POST 'https://api.elysiatools.com/en/api/tools/markdown-link-checker' \ -H 'Content-Type: application/json' \ -d '{"markdownInput":"Paste your Markdown with links to check...","checkLevel":"basic","reportFormat":"text"}'

Name

Type

Required

Description

markdownInput

textarea

Yes

—

checkLevel

select

—

reportFormat

select

—

{ "mcpServers": { "elysiatools-markdown-link-checker": { "name": "markdown-link-checker", "description": "Statically check Markdown links for format errors, broken anchors, and undefined references (no network requests)", "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=markdown-link-checker", "command": "", "args": [], "env": {}, "isActive": true, "type": "sse" } } }

{ "jsonrpc": "2.0", "id": 2, "method": "tools/call", "params": { "name": "markdown-link-checker", "arguments": { "markdownInput": "Paste your Markdown with links to check...", "checkLevel": "basic", "reportFormat": "text" } } }