Markdown to HTMLMarkdown to HTML API

OnlineCredit Usage:1 per callRefreshed 1 month ago
avg: 276ms|p50: 261ms|p75: 286ms|p90: 316ms|p99: 375ms

Markdown to HTML parses markdown syntax and converts it to clean, semantic HTML suitable for web rendering and content management.

The Markdown to HTML API provides reliable and fast access to markdown to html data through a simple REST interface. Built for developers who need consistent, high-quality results with minimal setup time.

To use Markdown to HTML, you need an API key. You can get one by creating a free account and visiting your dashboard.

POST Endpoint

URL
https://api.apiverve.com/v1/markdowntohtml

Code Examples

Here are examples of how to call the Markdown to HTML API in different programming languages:

cURL Request
curl -X POST \
  "https://api.apiverve.com/v1/markdowntohtml" \
  -H "X-API-Key: your_api_key_here" \
  -H "Content-Type: application/json" \
  -d '{
  "markdown": "# Hello World\n\nThis is a **bold** statement and this is *italic*.\n\n## Features\n\n- Easy to use\n- Fast conversion\n- Supports common markdown syntax\n\n[Link to example](https://example.com)"
}'
JavaScript (Fetch API)
const response = await fetch('https://api.apiverve.com/v1/markdowntohtml', {
  method: 'POST',
  headers: {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    "markdown": "# Hello World\n\nThis is a **bold** statement and this is *italic*.\n\n## Features\n\n- Easy to use\n- Fast conversion\n- Supports common markdown syntax\n\n[Link to example](https://example.com)"
})
});

const data = await response.json();
console.log(data);
Python (Requests)
import requests

headers = {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
}

payload = {
    "markdown": "# Hello World\n\nThis is a **bold** statement and this is *italic*.\n\n## Features\n\n- Easy to use\n- Fast conversion\n- Supports common markdown syntax\n\n[Link to example](https://example.com)"
}

response = requests.post('https://api.apiverve.com/v1/markdowntohtml', headers=headers, json=payload)

data = response.json()
print(data)
Node.js (Native HTTPS)
const https = require('https');
const url = require('url');

const options = {
  method: 'POST',
  headers: {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
  }
};

const postData = JSON.stringify({
  "markdown": "# Hello World\n\nThis is a **bold** statement and this is *italic*.\n\n## Features\n\n- Easy to use\n- Fast conversion\n- Supports common markdown syntax\n\n[Link to example](https://example.com)"
});

const req = https.request('https://api.apiverve.com/v1/markdowntohtml', options, (res) => {
  let data = '';
  res.on('data', (chunk) => data += chunk);
  res.on('end', () => console.log(JSON.parse(data)));
});

req.write(postData);
req.end();
PHP (cURL)
<?php

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, 'https://api.apiverve.com/v1/markdowntohtml');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    'X-API-Key: your_api_key_here',
    'Content-Type: application/json'
]);

curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode({
    'markdown': '# Hello World\n\nThis is a **bold** statement and this is *italic*.\n\n## Features\n\n- Easy to use\n- Fast conversion\n- Supports common markdown syntax\n\n[Link to example](https://example.com)'
}));

$response = curl_exec($ch);
curl_close($ch);

$data = json_decode($response, true);
print_r($data);

?>
Go (net/http)
package main

import (
    "fmt"
    "io"
    "net/http"
    "bytes"
    "encoding/json"
)

func main() {
    payload := map[string]interface{}{
        "markdown": "# Hello World

This is a **bold** statement and this is *italic*.

## Features

- Easy to use
- Fast conversion
- Supports common markdown syntax

[Link to example](https://example.com)"
    }

    jsonPayload, _ := json.Marshal(payload)
    req, _ := http.NewRequest("POST", "https://api.apiverve.com/v1/markdowntohtml", bytes.NewBuffer(jsonPayload))

    req.Header.Set("X-API-Key", "your_api_key_here")
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    body, _ := io.ReadAll(resp.Body)
    fmt.Println(string(body))
}
Ruby (Net::HTTP)
require 'net/http'
require 'json'

uri = URI('https://api.apiverve.com/v1/markdowntohtml')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true

payload = {
  "markdown": "# Hello World\n\nThis is a **bold** statement and this is *italic*.\n\n## Features\n\n- Easy to use\n- Fast conversion\n- Supports common markdown syntax\n\n[Link to example](https://example.com)"
}

request = Net::HTTP::Post.new(uri)
request['X-API-Key'] = 'your_api_key_here'
request['Content-Type'] = 'application/json'

request.body = payload.to_json

response = http.request(request)
puts JSON.pretty_generate(JSON.parse(response.body))
C# (HttpClient)
using System;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        using var client = new HttpClient();
        client.DefaultRequestHeaders.Add("X-API-Key", "your_api_key_here");

        var jsonContent = @"{
        ""markdown"": ""# Hello World\n\nThis is a **bold** statement and this is *italic*.\n\n## Features\n\n- Easy to use\n- Fast conversion\n- Supports common markdown syntax\n\n[Link to example](https://example.com)""
}";
        var content = new StringContent(jsonContent, Encoding.UTF8, "application/json");

        var response = await client.PostAsync("https://api.apiverve.com/v1/markdowntohtml", content);
        response.EnsureSuccessStatusCode();

        var responseBody = await response.Content.ReadAsStringAsync();
        Console.WriteLine(responseBody);
    }
}

Authentication

The Markdown to HTML API requires authentication via API key. Include your API key in the request header:

Required Header
X-API-Key: your_api_key_here

Learn more about authentication →

Interactive API Playground

Test the Markdown to HTML API directly in your browser with live requests and responses.

Parameters

The following parameters are available for the Markdown to HTML API:

Convert Markdown to HTML

ParameterTypeRequiredDescriptionDefaultExample
markdownstringrequired
Markdown text to convert (max 100,000 characters)
-# Title\n\nThis is **bold** text.

Response

The Markdown to HTML API returns responses in JSON, XML, YAML, and CSV formats:

Example Responses

JSON Response
200 OK
{
  "status": "ok",
  "error": null,
  "data": {
    "html": "<h1>Hello World</h1>\n<p>This is a <strong>bold</strong> statement and this is <em>italic</em>.</p>\n<h2>Features</h2>\n<ul>\n<li>Easy to use</li>\n<li>Fast conversion</li>\n<li>Supports common markdown syntax</li>\n</ul>\n<p><a href=\"https://example.com\">Link to example</a></p>\n",
    "markdownLength": 185,
    "htmlLength": 272
  }
}
XML Response
200 OK
<?xml version="1.0" encoding="UTF-8"?>
<response>
  <status>ok</status>
  <error xsi:nil="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
  <data>
    <html>&lt;h1&gt;Hello World&lt;/h1&gt;
&lt;p&gt;This is a &lt;strong&gt;bold&lt;/strong&gt; statement and this is &lt;em&gt;italic&lt;/em&gt;.&lt;/p&gt;
&lt;h2&gt;Features&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;Easy to use&lt;/li&gt;
&lt;li&gt;Fast conversion&lt;/li&gt;
&lt;li&gt;Supports common markdown syntax&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;a href=&quot;https://example.com&quot;&gt;Link to example&lt;/a&gt;&lt;/p&gt;
</html>
    <markdownLength>185</markdownLength>
    <htmlLength>272</htmlLength>
  </data>
</response>
YAML Response
200 OK
status: ok
error: null
data:
  html: >
    <h1>Hello World</h1>

    <p>This is a <strong>bold</strong> statement and this is
    <em>italic</em>.</p>

    <h2>Features</h2>

    <ul>

    <li>Easy to use</li>

    <li>Fast conversion</li>

    <li>Supports common markdown syntax</li>

    </ul>

    <p><a href="https://example.com">Link to example</a></p>
  markdownLength: 185
  htmlLength: 272
CSV Response
200 OK
keyvalue
html<h1>Hello World</h1>
<p>This is a <strong>bold</strong> statement and this is <em>italic</em>.</p>
<h2>Features</h2>
<ul>
<li>Easy to use</li>
<li>Fast conversion</li>
<li>Supports common markdown syntax</li>
</ul>
<p><a href=https://example.com>Link to example</a></p>
markdownLength185
htmlLength272

Response Structure

All API responses follow a consistent structure with the following fields:

FieldTypeDescriptionExample
statusstringIndicates whether the request was successful ("ok") or failed ("error")ok
errorstring | nullContains error message if status is "error", otherwise nullnull
dataobject | nullContains the API response data if successful, otherwise null{...}

Learn more about response formats →

Response Data Fields

When the request is successful, the data object contains the following fields:

Response fields marked with Premium are available exclusively on paid plans.View pricing
FieldTypeSample ValueDescription
htmlstring"<h1>Hello World</h1> <p>This is a <strong>bold</strong> statement and this is <em>italic</em>.</p> <h2>Features</h2> <ul> <li>Easy to use</li> <li>Fast conversion</li> <li>Supports common markdown syntax</li> </ul> <p><a href="https://example.com">Link to example</a></p> "Converted markdown content as valid semantic HTML
markdownLengthPremiumnumber185Character count of the input markdown text
htmlLengthPremiumnumber272Character count of the generated HTML output

Headers

Required and optional headers for Markdown to HTML API requests:

Header NameRequiredExample ValueDescription
X-API-Keyrequiredyour_api_key_hereYour APIVerve API key. Found in your dashboard under API Keys.
Acceptoptionalapplication/jsonSpecify response format: application/json (default), application/xml, or application/yaml
User-AgentoptionalMyApp/1.0Identifies your application for analytics and debugging purposes
X-Request-IDoptionalreq_123456789Custom request identifier for tracking and debugging requests
Cache-Controloptionalno-cacheControl caching behavior for the request and response

Learn more about request headers →

GraphQL AccessALPHA

Access Markdown to HTML through GraphQL to combine it with other API calls in a single request. Query only the markdown to html data you need with precise field selection, and orchestrate complex data fetching workflows.

Test Markdown to HTML in the GraphQL Explorer to confirm availability and experiment with queries.

Credit Cost: Each API called in your GraphQL query consumes its standard credit cost.

GraphQL Endpoint
POST https://api.apiverve.com/v1/graphql
GraphQL Query Example
query {
  markdowntohtml(
    input: {
      markdown: "# Hello World

This is a **bold** statement and this is *italic*.

## Features

- Easy to use
- Fast conversion
- Supports common markdown syntax

[Link to example](https://example.com)"
    }
  ) {
    html
    markdownLength
    htmlLength
  }
}

Note: Authentication is handled via the x-api-key header in your GraphQL request, not as a query parameter.

CORS Support

The Markdown to HTML API supports Cross-Origin Resource Sharing (CORS) with wildcard configuration, allowing you to call Markdown to HTML directly from browser-based applications without proxy servers.

CORS HeaderValueDescription
Access-Control-Allow-Origin*Accepts requests from any origin
Access-Control-Allow-Methods*Accepts any HTTP method
Access-Control-Allow-Headers*Accepts any request headers

Browser Usage: You can call Markdown to HTML directly from JavaScript running in the browser without encountering CORS errors. No proxy server or additional configuration needed.

Learn more about CORS support →

Rate Limiting

Markdown to HTML API requests are subject to rate limiting based on your subscription plan. These limits ensure fair usage and maintain service quality for all Markdown to HTML users.

PlanRate LimitDescription
Free5 requests/minHard rate limit enforced - exceeding will return 429 errors
StarterNo LimitProduction ready - standard traffic priority
ProNo LimitProduction ready - preferred traffic priority
MegaNo LimitProduction ready - highest traffic priority

Learn more about rate limiting →

Rate Limit Headers

When rate limits apply, each Markdown to HTML response includes headers to help you track your usage:

HeaderDescription
X-RateLimit-LimitMaximum number of requests allowed per time window
X-RateLimit-RemainingNumber of requests remaining in the current window
X-RateLimit-ResetUnix timestamp when the rate limit window resets

Handling Rate Limits

Free Plan: When you exceed your rate limit, Markdown to HTML returns a 429 Too Many Requests status code. Your application should implement appropriate backoff logic to handle this gracefully.

Paid Plans: No rate limiting or throttling applied. All paid plans (Starter, Pro, Mega) are production-ready.

Best Practices for Markdown to HTML:

  • Monitor the rate limit headers to track your Markdown to HTML usage (Free plan only)
  • Cache markdown to html responses where appropriate to reduce API calls
  • Upgrade to Pro or Mega for guaranteed no-throttle Markdown to HTML performance

Note: Markdown to HTML rate limits are separate from credit consumption. You may have credits remaining but still hit rate limits when using Markdown to HTML on Free tier.

Error Codes

The Markdown to HTML API uses standard HTTP status codes to indicate success or failure:

CodeMessageDescriptionSolution
200OKRequest successful, data returnedNo action needed - request was successful
400Bad RequestInvalid request parameters or malformed requestCheck required parameters and ensure values match expected formats
401UnauthorizedMissing or invalid API keyInclude x-api-key header with valid API key from dashboard
403ForbiddenAPI key lacks permission or insufficient creditsCheck credit balance in dashboard or upgrade plan
429Too Many RequestsRate limit exceeded (Free: 5 req/min)Implement request throttling or upgrade to paid plan
500Internal Server ErrorServer error occurredRetry request after a few seconds, contact support if persists
503Service UnavailableAPI temporarily unavailableWait and retry, check status page for maintenance updates

Learn more about error handling →

Need help? Contact support with your X-Request-ID for assistance.

Integrate Markdown to HTML with SDKs

Get started quickly with official Markdown to HTML SDKs for your preferred language. Each library handles authentication, request formatting, and error handling automatically.

Available for Node.js, Python, C#/.NET, and Android/Java. All SDKs are open source and regularly updated.

Integrate Markdown to HTML with No-Code API Tools

Connect the Markdown to HTML API to your favorite automation platform without writing code. Build workflows that leverage markdown to html data across thousands of apps.

All platforms use your same API key to access Markdown to HTML. Visit our integrations hub for step-by-step setup guides.

Frequently Asked Questions

How do I get an API key for Markdown to HTML?
Sign up for a free account at dashboard.apiverve.com. Your API key will be automatically generated and available in your dashboard. The same key works for Markdown to HTML and all other APIVerve APIs. The free plan includes 1,000 credits plus a 500 credit bonus.
How many credits does Markdown to HTML cost?

Each successful Markdown to HTML API call consumes credits based on plan tier. Check the pricing section above for the exact credit cost. Failed requests and errors don't consume credits, so you only pay for successful markdown to html lookups.

Can I use Markdown to HTML in production?

The free plan is for testing and development only. For production use of Markdown to HTML, upgrade to a paid plan (Starter, Pro, or Mega) which includes commercial use rights, no attribution requirements, and guaranteed uptime SLAs. All paid plans are production-ready.

Can I use Markdown to HTML from a browser?
Yes! The Markdown to HTML API supports CORS with wildcard configuration, so you can call it directly from browser-based JavaScript without needing a proxy server. See the CORS section above for details.
What happens if I exceed my Markdown to HTML credit limit?

When you reach your monthly credit limit, Markdown to HTML API requests will return an error until you upgrade your plan or wait for the next billing cycle. You'll receive notifications at 80% and 95% usage to give you time to upgrade if needed.

What's Next?

Continue your journey with these recommended resources

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