The full upstream README, mirrored here for reference. Install config, tool schemas, adoption signals, and an original overview live on the Codetoimage MCP Server listing page.
Official Model Context Protocol server for codetoimage.app – render HTML/CSS to PNG/JPG/WebP directly from Claude Desktop, Claude Code, Cursor, or any MCP-compatible client.
Two tools, no setup beyond an API key:
render_html_to_image – returns the image inline so your agent (or you, in chat) can see it immediately. Best for "show me the rendered card", OG preview iteration, chart generation, badge mockups.render_html_to_url – returns a temporary hosted URL (24h TTL). Best when the image needs to live somewhere external – Instagram Graph API, OpenGraph meta tags, Slack unfurls, docs/posts embeds.You don't need to install anything globally – MCP clients can run it via npx. Get an API key at codetoimage.app/dashboard/keys, then add the config below.
Edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):
Restart Claude Desktop. The two tools appear in the tool picker.
Then set the env var in your shell profile (or pass -e CODETOIMAGE_API_KEY=cti_live_… in the claude mcp add call).
Edit ~/.cursor/mcp.json:
The tools are self-documenting – your agent will pick the right one based on intent. Example prompts that just work:
"Render this card as a PNG:
<div style='padding:40px;background:#6366f1;color:white;border-radius:16px'>Hello</div>at 800×400."
"Generate an Open Graph image for the blog post 'Why agents need pixel-perfect rendering' and give me a URL I can paste into the og:image meta tag."
"Take this CSS card and render it as a transparent PNG so I can use it on a dark background."
"Render my saved template 3f2a91d0-... with title 'Launch day' as an Instagram story."
render_html_to_image| Field | Type | Required | Notes |
|---|---|---|---|
html | string | ✓* | Full HTML (typically with <body>). *Not needed with template_id |
css | string | – | Optional CSS injected as <style> |
template_id | uuid | ✓* | Saved template from the dashboard (Templates page); alternative to html |
variables | object | – | Values for {{placeholders}} in the template (HTML-escaped) |
preset | enum | – | Named size: og, twitter-card, facebook-post, linkedin-post, instagram-square, instagram-portrait, instagram-story, youtube-thumbnail, pinterest-pin |
width | integer 1-2048 | – | Default 800; overrides preset |
height | integer 1-2048 | – | Default 600; overrides preset |
format | png | jpeg | webp | – | Default png |
quality | integer 1-100 | – | JPEG/WebP only |
transparent | boolean | – | PNG/WebP, paid plans |
background | string | – | e.g. #ffffff or rgb(…) |
Returns: image content (base64 inline), rendered in the chat.
render_html_to_urlSame input schema as render_html_to_image. Returns a text block with:
url – temporary hosted image URLformat – final output formatexpires_at – ISO timestamp (24h from render)credits_remaining – your plan's quota state| Variable | Default | Purpose |
|---|---|---|
CODETOIMAGE_API_KEY | – | Required. Get one at codetoimage.app/dashboard/keys |
CODETOIMAGE_API_URL | https://api.codetoimage.app | API base URL (override for dev/proxy) |
Pricing: codetoimage.app/#pricing
@codetoimage/cli – terminal/CI usageMIT