🪄 SEO Meta Generator API

AI-powered metadata from any URL or HTML — title, description, OpenGraph, Twitter cards, JSON-LD schema. Ready to paste into your <head>.

⚡ ~2s response 🌍 Any language 🧠 Gemini 2.5 Flash 📋 Pre-built HTML tags

🚀 Try live demo 📖 OpenAPI spec

Why this API

⚡ Save 30 minutes per post. No more manually crafting title + meta + OG + Twitter + JSON-LD. Send URL, get all 5 in one call.

🎯 Optimized for CTR. Gemini 2.5 Flash trained on millions of pages — understands what makes a title clickable vs keyword-stuffed.

📋 Ready-to-paste HTML. We return structured JSON and a pre-built html_tags string you can drop straight into your <head>.

🌍 Multilingual. Auto-detects language (works great with Thai, Japanese, Spanish, etc.) or specify explicitly.

Live Demo

Enter a URL to analyze:

Result:

Quick Start

Authenticate

Add your key in the X-Api-Key header. Demo key: demo-key-seo-meta (100 calls/day, no signup).

POST /meta with URL

curl -X POST https://hubaiasia.com/seo-meta-api/meta \
  -H "X-Api-Key: demo-key-seo-meta" \
  -H "Content-Type: application/json" \
  -d '{"url": "https://hubaiasia.com/the-ultimate-ai-tools-guide-2026/"}'

Response

{
  "ok": true,
  "meta": {
    "language": "en",
    "title": "The Ultimate AI Tools Guide 2026 — Top 10 Picks",
    "description": "Compare the best AI tools for developers in 2026. Real pricing, real use cases, real workflows.",
    "keywords": ["ai tools", "gemini", "claude", "cursor", "dev tools 2026"],
    "og": {
      "title": "The Ultimate AI Tools Guide 2026",
      "description": "Top 10 AI tools every developer should know in 2026.",
      "type": "article",
      "site_name": "HubAI Asia"
    },
    "twitter": {
      "card": "summary_large_image",
      "title": "The Ultimate AI Tools Guide 2026",
      "description": "Top 10 AI tools every developer should know."
    },
    "schema": {
      "@context": "https://schema.org",
      "@type": "Article",
      "headline": "The Ultimate AI Tools Guide 2026",
      "description": "...",
      "inLanguage": "en"
    }
  },
  "html_tags": "<title>The Ultimate AI Tools Guide 2026 — Top 10 Picks</title>\n<meta name=\"description\" content=\"...\">..."
}

POST /meta with HTML or raw content

curl -X POST https://hubaiasia.com/seo-meta-api/meta \
  -H "X-Api-Key: demo-key-seo-meta" \
  -H "Content-Type: application/json" \
  -d '{
    "html": "<article>...</article>",
    "language": "th",
    "siteName": "AI Dev Thai",
    "maxTitleChars": 70
  }'

Options

Param	Type	Default	Description
`url`	string	—	URL to fetch & analyze (choose one of url/html/content)
`html`	string	—	Full HTML — we scope to `<main>`/`<article>` if present
`content`	string	—	Raw text (no HTML parsing)
`language`	string	auto	`auto` \| `en` \| `th` \| etc.
`tone`	string	professional	professional \| casual \| technical \| marketing
`maxTitleChars`	int	60	Title length cap
`maxDescChars`	int	160	Description length cap
`siteName`	string	—	Used in og:site_name
`includeSchema`	bool	true	Include JSON-LD schema.org Article
`buildTags`	bool	true	Return pre-built html_tags string

Pricing

Free

$0/mo

100 calls/day
5/min
Demo key

Basic

$9/mo

5,000 calls/day
30/min
Email support

Pro

$29/mo

50,000 calls/day
120/min
Priority support

Ultra

$99/mo

200,000 calls/day
300/min
SLA

Use Cases

CMS plugins — auto-generate meta on publish (WordPress, Ghost, etc.)
Content platforms — bulk-refresh old posts with modern metadata
Scrapers & link previews — build OG cards on-the-fly
Newsletter tools — generate social share text from article body
SEO audits — compare existing meta against AI-suggested optimal

Built by HubAI Asia · Powered by Gemini 2.5 Flash via OpenRouter