Render raw markdown into clean, semantic HTML ready to publish.
Markdown to HTML parses markdown syntax and converts it to clean, semantic HTML suitable for web rendering and content management.
Try it — live request, no key required
No key required to try it. Get a key to use it in your app.
{
"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
}
}
About the Markdown to HTML API
Perfect for CMSs, blog platforms, documentation sites, and any application requiring markdown content rendering in HTML format.
What people use it for
- Content Management
- Convert markdown content to HTML for CMS platforms
- Blog Rendering
- Render markdown blog posts as HTML for web display
- Documentation Sites
- Convert markdown documentation to HTML for static site generators
- Email Templates
- Generate HTML emails from markdown-formatted content
Ways to call it
One endpoint, many ways in — REST with JSON, XML, YAML and CSV, plus GraphQL and an MCP interface for AI agents.
- JSON
- Default REST response
- XML
- Markup format
- YAML
- Human-readable
- CSV
- Tabular export
- GraphQL
- Query language
- MCP
- For AI agents
Other ways to use Markdown to HTML
Same data, same APIVerve account, same credit balance — one key works on all of them.
How many markdown conversions does the Free plan cover?
Do I get markdown and HTML character counts on the Free plan?
Is there a character limit on the markdown text I can send?
What kind of HTML does the conversion return?
Can this convert content for email templates and documentation sites?
Request parameters — POST /v1/markdowntohtml
Sent as JSON in the request body. Premium parameters are accepted on every plan but only take effect on plans that include them. Anything not listed here is dropped rather than passed through.
Required
| Parameter | Type | Example | Description |
|---|---|---|---|
markdownRequired | string | # Title\n\nThis is **bold** text. | Markdown text to convert (max 100,000 characters) |
curl -X POST "https://api.apiverve.com/v1/markdowntohtml" \
-H "x-api-key: YOUR_API_KEY" \
-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)"}'Authentication
Send your key in the x-api-key header. That is the only auth step — no token exchange, and no per-endpoint scope to configure.
| Header | When | Value |
|---|---|---|
x-api-keyRequired | Every request | Your API key. Header names are case-insensitive, so X-API-Key is the same header. |
AuthorizationAlternate | Instead of the above | Bearer <key> — for clients that only expose bearer auth. Resolves to the same account and the same billing. |
content-typeRequired | POST body | application/json |
A 401 means the key is missing, invalid or expired. A 403 means the key is valid but not permitted here — blocked by a key restriction or an IP allow-list. Running out of credits is a 429.
Response — POST /v1/markdowntohtml
Every APIVerve endpoint returns the same three top-level keys, so one response handler covers your whole integration: status, error and data. Only data changes shape.
{
"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
}
}
Response fields
Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.
| Field | Type | Example | Description |
|---|---|---|---|
html | string | "<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</… | Converted markdown content as valid semantic HTML |
markdownLengthPremium | number | 185 | Character count of the input markdown text |
htmlLengthPremium | number | 272 | Character count of the generated HTML output |
Response headers
Every response carries your balance, so your own code always knows where it stands without polling anything. All four are exposed to browsers through CORS.
| Header | What it carries |
|---|---|
x-api-remaining-credits | Credits left in the current cycle |
x-api-credits-used | Credits spent in the current cycle |
x-api-max-credits | The allowance for the cycle |
x-api-version | Version of the endpoint that answered |
Errors
Read the HTTP status first, then error for the specific reason. The body names the parameter that has to change.
| Status | Meaning | What to do |
|---|---|---|
400 | Input was rejected | Read error; it names the parameter that has to change. |
401 | Key missing or invalid | Check the header name and the key value. |
403 | Key valid, but not permitted here | A key restriction or an IP allow-list — never a bad key. |
429 | Rate limited, or out of credits | Read error to tell them apart, then back off or top up. |
What a call costs — 2 credits per call
Credits are shared across every APIVerve API — one balance, one key, one bill. Failed requests never count against it, so a rejected input costs nothing.
| Plan | Per month | Credits | Markdown to HTML calls | Per 1,000 calls |
|---|---|---|---|---|
| Free | Free | 200 | 100 | Free |
| Starter | $29.99 | 200,000 | 100,000 | $0.30 |
| Pro | $99.99 | 1,000,000 | 500,000 | $0.20 |
| Mega | $299.99 | 4,000,000 | 2,000,000 | $0.15 |
Calls are what the credits buy at this API's rate — spend them here, on any of the other APIs, or across both. Nothing is reserved per endpoint.
Call it from cURL — POST /v1/markdowntohtml
No SDK to install — this is a plain HTTPS call to /v1/markdowntohtml with your key in the x-api-key header. Swap in a real key and it runs as-is.
curl "https://api.apiverve.com/v1/markdowntohtml" \
-H "x-api-key: YOUR_API_KEY"Resources
Also published for
Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.
Call it from Node.js — POST /v1/markdowntohtml
Install the Node.js SDK, then call the Markdown to HTML API with your key. The client wraps the same HTTPS request, so anything it returns is what the endpoint returns.
npm install @apiverve/markdowntohtmlconst res = await fetch("https://api.apiverve.com/v1/markdowntohtml", {
headers: { "x-api-key": "YOUR_API_KEY" },
});
const { data } = await res.json();
console.log(data);Resources
Also published for
Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.
Call it from Python — POST /v1/markdowntohtml
No SDK to install — this is a plain HTTPS call to /v1/markdowntohtml with your key in the x-api-key header. Swap in a real key and it runs as-is.
import requests
res = requests.get(
"https://api.apiverve.com/v1/markdowntohtml",
headers={"x-api-key": "YOUR_API_KEY"},
)
print(res.json()["data"])Resources
Also published for
Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.
Call it from C# / .NET — POST /v1/markdowntohtml
Install the C# / .NET SDK, then call the Markdown to HTML API with your key. The client wraps the same HTTPS request, so anything it returns is what the endpoint returns.
dotnet add package APIVerve.API.MarkdowntoHTMLusing var client = new HttpClient();
client.DefaultRequestHeaders.Add("x-api-key", "YOUR_API_KEY");
var json = await client.GetStringAsync("https://api.apiverve.com/v1/markdowntohtml");
Console.WriteLine(json);Resources
Also published for
Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.
Call it from Go — POST /v1/markdowntohtml
No SDK to install — this is a plain HTTPS call to /v1/markdowntohtml with your key in the x-api-key header. Swap in a real key and it runs as-is.
req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/markdowntohtml", nil)
req.Header.Set("x-api-key", "YOUR_API_KEY")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))Resources
Also published for
Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.
Call it from PHP — POST /v1/markdowntohtml
No SDK to install — this is a plain HTTPS call to /v1/markdowntohtml with your key in the x-api-key header. Swap in a real key and it runs as-is.
$ch = curl_init("https://api.apiverve.com/v1/markdowntohtml");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-api-key: YOUR_API_KEY"]);
$response = curl_exec($ch);
echo $response;Resources
Also published for
Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.
Call it from Ruby — POST /v1/markdowntohtml
No SDK to install — this is a plain HTTPS call to /v1/markdowntohtml with your key in the x-api-key header. Swap in a real key and it runs as-is.
require "net/http"
uri = URI("https://api.apiverve.com/v1/markdowntohtml")
req = Net::HTTP::Get.new(uri)
req["x-api-key"] = "YOUR_API_KEY"
res = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |h| h.request(req) }
puts res.bodyResources
Also published for
Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.
Zero-code embed — one snippet, no backend
Drop an interactive Markdown to HTML form onto any page. The widget calls the API for you, so no key ever appears in your markup and there is nothing to deploy.
Changelog — Markdown to HTML API
Every change to this endpoint, newest first. Breaking changes ship as a new version and the previous one keeps serving — response fields are added, never removed or retyped in place, so an integration written against v1 keeps working.
Entries are picked up from dated catalog snapshots, so the first one appears after the next snapshot that moves something. A period where nothing changed produces no entry — silence is a valid changelog for the Markdown to HTML API.
Data Conversion
- ASCII85 Encoder
- Base64 Encoder/Decoder
- Color Converter
- CSV to JSON Converter
- File Size Formatter
- HTML Entities Encoder/Decoder
- HTML to Image
- JSON to CSV Converter
- JSON to JSONP
- JWT Decoder
- Markdown Table Generator
- Markdown to HTML
- Markdown to Image
- Markdown to PDF
- Math Calculator
- Meeting Time Converter
- Number Base Converter
- Number to Words
- Placeholder Text Generator
- Punycode Converter
- Query String Builder
- Relative Time Formatter
- Roman Numeral Converter
- Text to Color
- Unicode Escape/Unescape
- Unit Converter
- Unix Timestamp Converter
- URL Encoder/Decoder
- URL to Markdown
- Variable Name Converter
- Website to Text
- Words to Numbers
- XML to JSON