CaptureKit

dev.capturekitPublished by capturekit.devOfficial publisherv0.1.0Updated Nov 7, 2026

Capture websites as PNG, JPEG, WebP or PDF, extract their content, or analyse them with AI.

VerifiedStreamable HTTPWeb executableWeb Search & Scraping Browser Automation Media & Design

Server details

Identifier: dev.capturekit/mcp
Transport: Streamable HTTP
Runtime: Web executable
Trust: Verified
Published: Nov 7, 2026

Security note

MCP servers receive tool arguments from a conversation and may perform external actions. Review what a server can do before you enable it, and give it only the access it needs.

The registry verified that this server's namespace belongs to capturekit.dev, which also runs its endpoint. That identifies the publisher; it does not make the server's tools safe.

SourceWeft's checks cover whether the listing is complete and the endpoint answered; they do not review the server's code or what its tools do.

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Overview

AI-generated overview

CaptureKit's official MCP server: capture webpages as PNG, JPEG, WebP or PDF, extract page content, crawl HTML, and get AI analysis of sites.

What you can do: Capture webpages as PNG, JPEG, WebP or PDF for previews, QA, reporting and archiving
Extract structured page data, metadata, links and HTML or Markdown in one request
Fetch raw HTML without rendering for fast scraping, audits and monitoring
Analyze a webpage with AI for summaries, value proposition, features, categories and use cases
Check account usage and credit balance, plus engine or endpoint health for the last hour
When to use it: Useful when an assistant needs screenshots, PDFs or extracted page content of live websites, or quick AI summaries of a page, without setting up a headless browser. Also fits SEO, monitoring, indexing and archiving workflows.
Requirements: A CaptureKit account and API key, sent as the x-api-key header for the hosted endpoint or as CAPTUREKIT_API_KEY for the local stdio package. The local package needs Node.js 20 or newer (or Docker); the hosted server needs no install. Network access to CaptureKit.

Before you install

Every tool that calls the API consumes paid credits, and the usage tool exposes your balance. The API key is a secret; keep it out of shared configs and logs. Fetched website content is untrusted and may contain injected instructions. The stats tool is not scoped to your account and may be disabled (HTTP 403). Self-hosted HTTP mode should sit behind TLS before exposure.

Installation

In SourceWeft

Open CaptureKit in the dashboard and add it to a workspace.
Connect the required credentials. They are stored privately and never shown on public pages.
Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/dev.capturekit%2Fmcp/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config. The client completes OAuth sign-in on first connect.

{
  "mcpServers": {
    "capturekit": {
      "type": "http",
      "url": "https://mcp.capturekit.dev/"
    }
  }
}

README

CaptureKit MCP Server

Official Model Context Protocol server for the CaptureKit screenshot API.

Capture websites as PNG, JPEG, WebP or PDF, extract their content, or analyse them with AI.

It lets Claude, Cursor, VS Code, Windsurf and any MCP client call the API as tools. Runs over stdio (local) or Streamable HTTP (self-hosted).

Requirements

Node.js 20 or newer
a CaptureKit API key — sign up, then copy it from the dashboard

Hosted server (recommended)

CaptureKit runs this server for you at https://mcp.capturekit.dev/ (Streamable HTTP). Send your API key in the x-api-key header; nothing to install.

claude mcp add --transport http capturekit https://mcp.capturekit.dev/ --header "x-api-key: YOUR_API_KEY"

claude mcp add --transport http capturekit https://mcp.capturekit.dev/ --header "x-api-key: YOUR_API_KEY"

json

{  "mcpServers": {    "capturekit": {      "url": "https://mcp.capturekit.dev/",      "headers": {        "x-api-key": "YOUR_API_KEY"      }    }  }}

{  "mcpServers": {    "capturekit": {      "url": "https://mcp.capturekit.dev/",      "headers": {        "x-api-key": "YOUR_API_KEY"      }    }  }}

The hosted server and this package expose the same API; run the package locally when you want stdio, your own network egress, or to self-host it.

Run it locally

Claude Code

Claude Desktop, Cursor, Windsurf and other clients

Add the server to the client's MCP configuration (claude_desktop_config.json, .cursor/mcp.json…):

json

{  "mcpServers": {    "capturekit": {      "command": "npx",      "args": ["-y", "@capturekitdev/mcp"],      "env": {        "CAPTUREKIT_API_KEY": "YOUR_API_KEY"      }    }  }}

{  "mcpServers": {    "capturekit": {      "command": "npx",      "args": ["-y", "@capturekitdev/mcp"],      "env": {        "CAPTUREKIT_API_KEY": "YOUR_API_KEY"      }    }  }}

VS Code

json

{  "servers": {    "capturekit": {      "type": "stdio",      "command": "npx",      "args": ["-y", "@capturekitdev/mcp"],      "env": {        "CAPTUREKIT_API_KEY": "${input:capturekit-api-key}"      }    }  },  "inputs": [    {      "type": "promptString",      "id": "capturekit-api-key",      "description": "CaptureKit API key",      "password": true    }  ]}

{  "servers": {    "capturekit": {      "type": "stdio",      "command": "npx",      "args": ["-y", "@capturekitdev/mcp"],      "env": {        "CAPTUREKIT_API_KEY": "${input:capturekit-api-key}"      }    }  },  "inputs": [    {      "type": "promptString",      "id": "capturekit-api-key",      "description": "CaptureKit API key",      "password": true    }  ]}

Claude Desktop extension

Download the .mcpb bundle from the releases page and open it; Claude Desktop asks for your API key.

Docker

docker build -t capturekit-mcp .docker run -i --rm -e CAPTUREKIT_API_KEY=YOUR_API_KEY capturekit-mcp

docker build -t capturekit-mcp .docker run -i --rm -e CAPTUREKIT_API_KEY=YOUR_API_KEY capturekit-mcp

Tools

Tool	Description
`analyze`	AI Content API analyzes any webpage and returns AI insights summary, value proposition, features, categories, use cases, and optional contact signals.
`capture`	Browser-like Screenshot API that captures webpages as PNG/JPEG/WebP or PDF for previews, QA, reporting, monitoring, and archiving no headless setup.
`content`	CaptureKit Content API extracts structured webpage data, metadata, links, HTML/Markdown: in one request for SEO, monitoring, indexing and automation.
`stats`	Infrastructure health for an engine or endpoint over the last hour. Not scoped to your account or tenant. Enabled per account: HTTP 403 means contact support to activate it.
`usage`	Retrieve real-time usage statistics and credit balance for your CaptureKit account.
`website_crawler`	Website Crawler API fetches raw HTML from any webpage in request mode (no rendering) for fast scraping, audits, monitoring, and link/metadata extraction.

Every tool that calls the API consumes credits. JSON results are returned as text; images are returned inline and other files (PDF…) as embedded resources, up to 4 MB.

Streamable HTTP

The endpoint is POST /mcp (stateless, JSON responses). Each client sends its own key in the x-api-key header (or Authorization: Bearer <key>); the server never uses a key of its own. It binds to 127.0.0.1 by default and rejects browser origins unless you allow them — put it behind TLS before exposing it.

createHttpHandler() is exported for Fetch-compatible runtimes (Cloudflare Workers, Deno, Bun):

import { createHttpHandler } from "@capturekitdev/mcp";
export default { fetch: createHttpHandler({ allowedOrigins: [] }) };

import { createHttpHandler } from "@capturekitdev/mcp";
export default { fetch: createHttpHandler({ allowedOrigins: [] }) };

Security

The API key is read from CAPTUREKIT_API_KEY (stdio) or the request headers (HTTP) and removed from error messages.
Content fetched from websites is untrusted: the server instructions tell the model to treat it as data, not instructions.
See SECURITY.md to report a vulnerability.

Development

Built on the SDK

The server uses the official Node.js SDK (@capturekitdev/sdk).

All CaptureKit SDKs

SDK	Package	Install
Node.js	`@capturekitdev/sdk`	`npm install @capturekitdev/sdk`
Python	`capturekitdev`	`pip install capturekitdev`
Go	`capturekit-go`	`go get github.com/capturekitdev/capturekit-go`
.NET	`CaptureKit`	`dotnet add package CaptureKit`
Ruby	`capturekitdev`	`gem install capturekitdev`
PHP	`capturekitdev/sdk`	`composer require capturekitdev/sdk`
Java	`capturekit-java`	build from source, see its README
CLI	`@capturekitdev/cli`	`npm install -g @capturekitdev/cli`
MCP server	`@capturekitdev/mcp`	`npx -y @capturekitdev/mcp`

License

MIT — see LICENSE.

Source: README.md at commit d77503f

Tools

This server asks you to sign in, so SourceWeft could not read its tools without an account and has not indexed them. What a connected account sees can depend on that account and its permissions.

Version history

v0.1.0LatestNov 7, 2026

Score

85% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

Reached in the last 30 daysRequired25 pts
Auth declaredRequired10 pts
Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
License10 pts