Zactonz

Name: Zactonz
Author: zactonz

by zactonzversion 0.1.0i★ –iRuns on your computer

Registry nameio.github.zactonz/zactonz-mcp

Install

Overview

Description from the maker (original English)

Screenshots, page to Markdown, link previews, DNS, SSL, WHOIS, QR codes and more for AI agents.

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 on your computer
Transport: stdio
Category: Other
You need to fill in: ZACTONZ_API_KEYS

Install

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

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: ZACTONZ_API_KEYS, ZACTONZ_MCP_INLINE_IMAGE_BYTES

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

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

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "zactonz": {
      "command": "npx",
      "args": [
        "-y",
        "@zactonz/mcp"
      ],
      "env": {
        "ZACTONZ_API_KEYS": "your-value",
        "ZACTONZ_MCP_INLINE_IMAGE_BYTES": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add zactonz --env ZACTONZ_API_KEYS=your-value --env ZACTONZ_MCP_INLINE_IMAGE_BYTES=your-value -- npx -y @zactonz/mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "zactonz": {
      "command": "npx",
      "args": [
        "-y",
        "@zactonz/mcp"
      ],
      "env": {
        "ZACTONZ_API_KEYS": "your-value",
        "ZACTONZ_MCP_INLINE_IMAGE_BYTES": "your-value"
      }
    }
  }
}

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": {
    "zactonz": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@zactonz/mcp"
      ],
      "env": {
        "ZACTONZ_API_KEYS": "your-value",
        "ZACTONZ_MCP_INLINE_IMAGE_BYTES": "your-value"
      }
    }
  }
}

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.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

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

Values you fill in

ZACTONZ_API_KEYS secret required env
One or more Zactonz API keys, separated by commas. Create them at https://developers.zactonz.com/console/
ZACTONZ_MCP_INLINE_IMAGE_BYTES env
Largest image, in bytes, returned inline with a tool result. Default 750000. Set 0 to return links only.

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

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

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 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account zactonz, 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 applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

More stars than 0% of the other 32589 servers in this category
Published to the registry more recently than 56% of the other 32589 servers in this category
Basic checks equal to or better than 100% of the other 32589 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 Zactonz 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?

You need to fill in: ZACTONZ_API_KEYS

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.0) reached the registry 31 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Detailing Manager

Alternatives

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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.

Zactonz MCP server

A Model Context Protocol server for the Zactonz APIs. It lets an AI assistant capture a screenshot of a web page, read a page as Markdown, preview a link, look up DNS, SSL and WHOIS records, check a domain's email setup, verify addresses, generate QR codes, barcodes and social card images, convert images and translate text.

It runs on your machine over stdio and needs Node.js 18 or newer.

Install

There is nothing to install ahead of time. The client configurations below run npx -y @zactonz/mcp, which fetches the package on first use and keeps it cached. You need Node.js 18 or newer.

Skip to Setup unless you want to run it from a checkout.

From source

Useful for pinning a particular commit, working on the server, or running without a registry. Needs Node.js 18 or newer and git.

git clone https://github.com/zactonz/zactonz-mcp.git

cd zactonz-mcp npm ci --omit=dev

That is the whole install: two runtime dependencies, no build step. Check it starts — it will wait for input, so press Ctrl+C to leave:

node bin/zactonz-mcp.js

Then point your client at the absolute path, in place of the npx form used below:

"mcpServers": { "zactonz": { "command": "node", "args": ["/absolute/path/to/zactonz-mcp/bin/zactonz-mcp.js"], "env": { "ZACTONZ_API_KEYS": "zk_screen_…,zk_markdown_…" } } } }

Use the real absolute path — ~ and relative paths are not expanded by most clients. On Windows, write it with forward slashes or escaped backslashes, for example C:/Users/you/zactonz-mcp/bin/zactonz-mcp.js.

For Claude Code:

claude mcp add zactonz --env ZACTONZ_API_KEYS="zk_screen_…" -- node /absolute/path/to/zactonz-mcp/bin/zactonz-mcp.js

If you would rather have zactonz-mcp on your PATH, run npm link in the clone, then use "command": "zactonz-mcp" with no args.

To update later: git pull && npm ci --omit=dev.

Setup

Create a key for each product you want to use in the API console. There is a free plan.
Add the server to your MCP client, with the keys in ZACTONZ_API_KEYS separated by commas.

If you installed from source instead, substitute the "command" and "args" shown there for the npx form used below.

Clients that read an mcpServers block, such as Claude Desktop, Cursor and Windsurf:

"mcpServers": { "zactonz": { "command": "npx", "args": ["-y", "@zactonz/mcp"], "env": { "ZACTONZ_API_KEYS": "zk_screen_…,zk_markdown_…,zk_domain_…" } } } }

VS Code (.vscode/mcp.json):

"servers": { "zactonz": { "command": "npx", "args": ["-y", "@zactonz/mcp"], "env": { "ZACTONZ_API_KEYS": "zk_screen_…,zk_markdown_…" } } } }

Claude Code:

claude mcp add zactonz --env ZACTONZ_API_KEYS="zk_screen_…,zk_markdown_…" -- npx -y @zactonz/mcp

On Windows, if the client cannot start npx directly, use "command": "cmd" with "args": ["/c", "npx", "-y", "@zactonz/mcp"].

Keys

A Zactonz key works for one product, and the product is part of the key: zk_screen_… is a screenshot key, zk_markdown_… a Markdown key. Put every key you have in ZACTONZ_API_KEYS. The server uses the right one for each call and offers the assistant only the tools those keys can call.

Keys stay in the server process. They are sent to api.zactonz.com in the Authorization header and nowhere else, and they are never included in anything returned to the assistant.

Tools

Tool	Purpose	Key
`capture_screenshot`	Capture a web page as an image or PDF	`screen`
`render_html`	Render HTML to an image or PDF	`screen`
`read_webpage`	Read a web page as Markdown	`markdown`
`convert_html_to_markdown`	Convert HTML to Markdown	`markdown`
`preview_link`	Title, description, image and metadata of a URL	`unfurl`
`lookup_dns`	DNS records and DNSSEC status	`domain`
`inspect_ssl_certificate`	Certificate, chain, expiry and TLS details	`domain`
`lookup_whois`	Registrar, dates and nameservers of a domain	`domain`
`check_email_domain`	MX, SPF, DKIM, DMARC and related records, scored	`email`
`verify_emails`	Whether addresses can receive mail	`mverifier`
`generate_qr_code`	Generate a QR code	`qr`
`read_qr_code`	Decode a QR code	`qr`
`generate_barcode`	Generate a barcode	`barcode`
`generate_social_image`	Generate an Open Graph image	`og`
`convert_image`	Convert, resize or crop an image	`image`
`inspect_image`	Dimensions, format and colours of an image	`image`
`translate_text`	Translate between 46 languages	`translator`
`get_drive_download_link`	Direct download link for a Google Drive file	`gdrive`
`check_api_key`	Plan and remaining quota of a key	any

docs/tools.md lists the arguments of each tool.

Example requests once it is connected:

"Take a screenshot of example.com on a 390 pixel wide screen and tell me whether the menu fits."
"Read https://example.com/pricing and summarise the plans."
"Does example.com have SPF and DMARC set up correctly?"
"When does the SSL certificate for example.com expire?"

Results

A tool returns JSON text. Two things differ from the raw API:

read_webpage and convert_html_to_markdown return the Markdown as plain text, followed by the remaining fields as JSON. They request at most 20,000 characters unless the assistant asks for more.
A tool that produces an image returns the link and, when the file is 750 KB or smaller, the image as well, so the assistant can look at it. capture_screenshot and render_html use JPEG quality 80 unless told otherwise, to stay under that size. PDFs and larger images are returned as a link only.

A refused call is returned as a tool error carrying the API's message, the status, how long to wait when a limit was reached, and the request id.

Limits and timing

Calls spend units from your plan's quota, the same as direct API calls. See rate limits and quotas.

A tool call is given 55 seconds in total, because MCP clients stop waiting after 60. Within that time the server retries once, and only where a retry cannot repeat work: after a 429 with a short Retry-After, after a gateway error on a read, or ten seconds after the API's request burst limit rejects a call. If the client cancels a call, the server stops.

Configuration

Variable	Purpose	Default
`ZACTONZ_API_KEYS`	API keys, separated by commas	none
`ZACTONZ_MCP_INLINE_IMAGE_BYTES`	Largest image returned inline, in bytes. `0` returns links only	`750000`
`ZACTONZ_BASE_URL`	API base URL	`https://api.zactonz.com`

Without keys the server still starts and lists every tool, and each call answers with setup instructions. Values in ZACTONZ_API_KEYS that are not Zactonz keys are ignored and reported on stderr.

Security and privacy

Untrusted content. read_webpage, preview_link and read_qr_code return text written by whoever controls the page or the code. That text can contain instructions aimed at the assistant. The server labels it as third-party data, but the label is advice to the model, not a guarantee. Review what an assistant does after reading pages you do not control.
Generated files are public links. Screenshots, PDFs, QR codes, barcodes and converted images are stored on api.zactonz.com at unguessable URLs that anyone holding the link can open, for the period given on each endpoint's reference page. Do not render documents that must stay private.
What is sent. Tool arguments go to api.zactonz.com and nowhere else. The server keeps no logs and stores nothing on disk. The API's own handling of data is covered by the privacy policy.
Arguments are validated against each tool's schema before any request is made, and arguments outside the schema are refused.
Images are fetched for inline display only from the API's own host, over HTTPS, without following redirects.
Tools that fetch a URL do so from Zactonz's servers, which refuse private and internal addresses.

Report a vulnerability as described in SECURITY.md.

Troubleshooting

A tool is missing. Only tools with a key are listed. Add a key for that product and restart the client.
Every call answers with setup instructions. ZACTONZ_API_KEYS is empty or holds no valid key. The server prints the reason on stderr, which most clients show in their MCP log.
"Missing or invalid API key." The key was revoked or mistyped. Ask the assistant to run check_api_key, or check the key in the console.
A screenshot has no inline image. The file is over the inline limit. Lower the quality or size, or raise ZACTONZ_MCP_INLINE_IMAGE_BYTES.

Versioning

This package follows semantic versioning. While it is at 0.x, a minor release may rename a tool or an argument; such changes are listed in the changelog.

Development

See CONTRIBUTING.md.

Licence

MIT. See LICENSE. Maintained by Zactonz Technologies.

Zactonz

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

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 Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

Detailing Manager

README from the maker

Zactonz MCP server

Install

From source

Setup

Keys

Tools

Results

Limits and timing

Configuration

Security and privacy

Troubleshooting

Versioning

Development

Licence