Introduction

What is RendShot?

RendShot is a cloud API with two capabilities:

1. HTML → Image — Send HTML/CSS, get back a PNG or JPEG. No browser setup, no infrastructure to manage.
2. URL → Screenshot — Send a URL, get back a screenshot of the rendered page.

You send one HTTP request; you receive one hosted image URL. That's it.

curl -X POST https://api.rendshot.ai/v1/image \
  -H "Authorization: Bearer rs_live_YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"html": "<h1 style=\"padding:40px;color:#fff\">Hello World</h1>", "width": 800, "height": 400}'

{
  "id": "img_abc123",
  "url": "https://assets.rendshot.ai/img_abc123.png",
  "width": 800,
  "height": 400,
  "format": "png"
}

The returned url is a CDN-hosted image you can embed anywhere — social media, emails, dashboards, Slack messages.

Who is it for?

• Application developers — Generate OG images, social cards, or receipts on the fly
• Marketing / Growth teams — Create personalized images at scale without a designer
• AI agents and tools — Let Claude, GPT, or your own agent produce visual output via MCP
• QA / DevOps — Capture screenshots of staging URLs in CI pipelines

How you can use it

Key facts

• Output: PNG or JPEG, up to 4096 × 4096 pixels, with 1×/2×/3× device scale
• Fonts: Google Fonts loaded automatically — pass fonts: ["Inter"] and it works
• Storage: Images are hosted on a global CDN. Retention depends on your plan (7 days free, 30 days pro)
• Security: All URLs go through SSRF validation — private/internal addresses are blocked
• Pricing: Free tier gives you 100 images/month. Pro plan available — see Pricing

Next step

Ready to try it? The Quickstart gets you from zero to your first image in under 5 minutes.