HTML/CSS to Image API

Name: HTML/CSS to Image API
Author: htmlcsstoimage

by htmlcsstoimageversion 1.1.0i★ –iRuns in the cloud

Registry nameio.github.htmlcsstoimage/html-css-to-image

Install

Overview

Description from the maker (original English)

Generate images and PDFs from HTML/CSS, live websites, and reusable templates.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Design, images & audio

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://mcp.hcti.io

Run this in your terminal

claude mcp add --transport http html-css-to-image https://mcp.hcti.io

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "html-css-to-image": {
      "url": "https://mcp.hcti.io"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "html-css-to-image": {
      "type": "http",
      "url": "https://mcp.hcti.io"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://mcp.hcti.io

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account htmlcsstoimage, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Design, images & audioi

More stars than 0% of the other 2172 servers in this category
Published to the registry more recently than 47% of the other 2172 servers in this category
Basic checks equal to or better than 100% of the other 2172 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is HTML/CSS to Image API safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.1.0) reached the registry 32 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Figma Context MCP, Claude Real Video, Figma MCP Server

Alternatives

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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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Give your coding agent access to your Figma data. Implement designs in any framework in one-shot.

Runs on your computer★ 16,165MITUpdated 5 months ago

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Claude Real Video

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Let any LLM watch a video locally — and search everything it has ever watched.

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Figma MCP Server

by figma

Figma’s official server gives AI your design data so it can turn designs into code or describe them accurately. Connects to Figma’s cloud.

Runs in the cloud★ 2,152Updated 13 months ago

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

HTML/CSS to Image API for AI agents

Let AI agents capture live website screenshots, render HTML/CSS, and populate reusable templates as images or PDFs—without managing a browser.

This repository is a portable Agent Plugin package with client-specific manifests for the hosted HCTI MCP server at https://mcp.hcti.io. Authentication uses HCTI's browser-based OAuth flow; no API key or access token is stored in this repository.

Repository layout

Path	Purpose
`plugin.json`	Portable Agent Plugins manifest.
`mcp.json`	Portable MCP configuration.
`.mcp.json`	Claude Code, GitHub Copilot, and Grok-compatible MCP configuration.
`llms-install.md`	Agent-readable installation guidance for Cline and other MCP clients.
`.codex-plugin/plugin.json`	Native ChatGPT and Codex plugin manifest.
`.app.json`	Maps the package to the official published OpenAI plugin.
`.claude-plugin/plugin.json`	Claude Code plugin manifest.
`.cursor-plugin/plugin.json`	Cursor Marketplace manifest.
`.grok-plugin/plugin.json`	Grok Build marketplace manifest.
`gemini-extension.json`	Gemini CLI extension manifest.
`kimi.plugin.json`	Kimi Code plugin manifest.
`skills/hcti-image-generation/`	Image generation and template workflow guidance.
`skills/hcti-open-graph-images/`	Dynamic Open Graph image configuration guidance.
`clawhub/html-css-to-image/`	Standalone OAuth/MCP rendering skill for ClawHub.
`clawhub/hcti-open-graph-images/`	Standalone OAuth/MCP Open Graph skill for ClawHub.

ChatGPT and Codex

Install the official HTML/CSS to Image plugin from the Plugins Directory in ChatGPT or Codex. This is the preferred OpenAI integration and uses HCTI's registered MCP connection with browser-based OAuth.

The native .codex-plugin/plugin.json manifest packages the shared HCTI skill, while .app.json maps the package to the published OpenAI plugin.

Kimi Code

Install the plugin directly from GitHub in Kimi Code:

/plugins install https://github.com/htmlcsstoimage/agent-plugins

/reload

Run /mcp-config login hcti and complete authorization in your browser. Then use /mcp to confirm that the HCTI tools are connected.

To test a local checkout, use /plugins install /path/to/agent-plugins. Kimi copies installed plugins into its managed plugin directory, so reinstall after changing the local source.

Gemini CLI

Install the extension directly from GitHub:

gemini extensions install https://github.com/htmlcsstoimage/agent-plugins

Restart Gemini CLI, run /extensions list to confirm the extension is enabled, then run /mcp auth hcti and complete authorization in your browser. Use /mcp list to confirm the HCTI tools are connected. Gemini CLI automatically discovers the included HCTI Agent Skills.

To test a local checkout during development, run gemini extensions link /path/to/agent-plugins, restart Gemini CLI, and inspect it with /extensions list.

GitHub Copilot

Install a local checkout

Install this repository directly:

copilot plugin install /path/to/agent-plugins

Start Copilot CLI and use /plugin list, /skills list, and /mcp to confirm that the plugin, skill, and HCTI server are available. Connect hcti from /mcp and complete authorization in your browser.

Cline

Give Cline the repository's llms-install.md to configure the hosted HCTI server, or add it manually as a remote Streamable HTTP server at https://mcp.hcti.io. Complete the OAuth authorization in your browser; no API key or local server installation is required.

Claude Code

Install from the Claude community marketplace

After the plugin is published, add Anthropic's community marketplace and install the plugin:

/plugin marketplace add anthropics/claude-plugins-community

/plugin install html-css-to-image@claude-community /reload-plugins

Run /mcp, select hcti, and complete authorization in your browser. Claude can invoke the HCTI skill automatically when relevant; it is also available as /html-css-to-image:hcti-image-generation.

Test a local checkout

Validate and load this repository directly:

claude plugin validate . --strict

claude --plugin-dir .

In the test session, run /mcp to connect hcti, then try an image request. Use /reload-plugins after changing the manifest, skill, or MCP configuration.

Cursor

Install from the Cursor Marketplace

After the plugin is published, open Customize in Cursor, search for HTML/CSS to Image API, select Install, and choose the desired scope.

Open Cursor's MCP settings, find hcti, select Connect, and complete authorization in your browser. Start a new Agent chat after connecting so the HCTI tools are available.

Test a local checkout

Copy this repository into Cursor's local plugin directory:

mkdir -p ~/.cursor/plugins/local

cp -R /path/to/agent-plugins ~/.cursor/plugins/local/html-css-to-image

Restart Cursor or run Developer: Reload Window, then confirm that HTML/CSS to Image API appears in Customize. Connect the hcti MCP server from Cursor's MCP settings before testing an image request.

For another test cycle, replace the copied html-css-to-image directory with the current checkout and reload Cursor.

Grok Build

The xAI plugin marketplace points to this repository at a pinned commit. Its Grok manifest reuses the root skill, MCP endpoint, and assets.

After the marketplace entry is available, install HTML/CSS to Image in Grok Build, connect the hcti MCP server when prompted, and complete authorization in your browser.

ClawHub / OpenClaw

The ClawHub skill supports HTML/CSS rendering, website screenshots, PDF output, and saved-template rendering through the hosted MCP server. Users connect to https://mcp.hcti.io using browser-based OAuth; no API keys are required. Rendering requires an HCTI account and available credits.

The separate Open Graph skill creates persistent dynamic social-preview configurations and integrates their image URLs into website metadata. It includes the webpage integration reference and uses the same OAuth connection.

These standalone distributions live outside skills/ so other clients do not discover duplicate skills. Their setup instructions register the server in OpenClaw and complete OAuth; installing a skill alone does not establish the connection. Publish only the skill folder, not the whole plugin repository.

From this repository's root, with the current ClawHub CLI installed:

clawhub login

clawhub skill publish ./clawhub/html-css-to-image \ --slug html-css-to-image \ --name "HTML/CSS to Image" \ --categories integrations,creative \ --topics "screenshots,html,css,pdf,images" \ --dry-run

Preview the Open Graph skill separately:

clawhub skill publish ./clawhub/hcti-open-graph-images \

--slug hcti-open-graph-images \ --name "HTML/CSS to Image — Dynamic Open Graph Images" \ --categories integrations,development \ --topics "open-graph,social-previews,seo,images,html" \ --dry-run

After reviewing each preview, run its publish command without --dry-run. To publish under an organization, add --owner to both commands; otherwise the authenticated user owns the listing. Publication is separate from committing this repository, and new releases may wait for automated review.

ClawHub distributes published skills under MIT-0. Review those terms before the first publication; the hosted HCTI service remains subject to its own terms. See ClawHub publishing and skill format.

Included capabilities

The core rendering and template tools are:

Tool	Purpose
`create_image`	Render HTML and CSS as an image or PDF.
`create_url_image`	Capture a public URL or selected page element.
`create_templated_image`	Render a saved HCTI template with variable values.
`create_batch_images`	Generate multiple image variations in one request.
`get_max_batch_size`	Check the account's current batch limit.
`create_template`	Save a reusable HTML/CSS template.
`update_template`	Update an existing template.
`list_templates`	List templates in the authorized account.
`list_template_versions`	Inspect a template's version history.

Managing resources with MCP

Beyond generating images, the HCTI MCP server can manage supporting resources in the connected organization:

Resource	Tools	Purpose
Usage	`check_usage`	Check the organization's current image usage and limits.
Open Graph configurations	`create_og_config`, `update_og_config`, `get_og_config`, `list_og_configs`, `delete_og_config`	Manage dynamic social-preview images for pages on a website.
Proxies	`create_proxy`, `update_proxy`, `get_proxy`, `list_proxies`, `delete_proxy`	Manage proxies used when HCTI accesses source websites.
Storage destinations	`create_storage_destination`, `update_storage_destination`, `get_storage_destination`, `list_storage_destinations`, `delete_storage_destination`, `get_aws_storage_external_id`	Manage external destinations for generated images and retrieve the external ID needed for AWS setup.

Dynamic Open Graph image configurations are an especially useful integration point. An agent can resolve an existing HCTI template, map page metadata into its variables, optionally select a configured proxy or storage destination, and create a persistent configuration for serving cached social images.

Resource tools operate on the HCTI organization selected during OAuth authorization, and available tools depend on the permissions granted to that connection. Listing and retrieval are read-only; create, update, and delete operations change the account. In particular, update_og_config replaces the complete configuration, so agents should retrieve the current configuration and preserve unchanged settings before updating it.

Example requests

"Create a 1200×630 Open Graph image with this title and color palette."
"Capture the pricing table on https://example.com/pricing."
"List my HCTI templates and render the social-card template with this headline."
"Create five product-card variations with different accent colors."
"Create a dynamic Open Graph configuration for https://example.com using my social-card template and map its title and description from page metadata."

Data handling

Requests sent through the plugin are processed by the hosted HTML/CSS to Image service. HTML, CSS, template values, target URLs, rendering options, and resource configuration supplied to HCTI are sent to that service; persistent resources are stored in the connected HCTI organization. Do not provide cookies, authorization headers, private URLs, or other secrets unless intentionally configuring an authorized rendering workflow and you understand that HCTI will process that data.

License and service terms

The plugin files in this repository are available under the MIT License. The license applies to this repository's source code, configuration, and documentation; it does not license the hosted HTML/CSS to Image service. Use of the service is governed separately by the Terms of Use and Privacy Policy.

Validate

Run the repository checks:

node scripts/validate-template.mjs

Validate the Claude adapter with Claude Code's official strict validator:

claude plugin validate . --st

Only the beginning is shown; read the rest in the repo

HTML/CSS to Image API

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Design, images & audioi

Common questions

Alternatives

Figma Context MCP

Claude Real Video

Figma MCP Server

README from the maker

HTML/CSS to Image API for AI agents

Repository layout

ChatGPT and Codex

Kimi Code

Gemini CLI

GitHub Copilot

Install a local checkout

Cline

Claude Code

Install from the Claude community marketplace

Test a local checkout

Cursor

Install from the Cursor Marketplace

Test a local checkout

Grok Build

ClawHub / OpenClaw

Included capabilities

Managing resources with MCP

Example requests

Data handling

License and service terms

Validate