developer-toolsapi_key

CaptureKit

CaptureKit captures webpage screenshots, extracts structured web content, crawls pages, and analyzes websites with AI.

Verdict

CaptureKit gives your team programmatic access to webpage snapshots, content extraction, and AI-powered analysis without leaving Switchy. @mention it to grab a PDF of a landing page, pull structured metadata from a competitor's site, or ask it to summarize a blog post's value proposition and audience. Developers and product teams use it to audit pages, monitor changes, or feed research into briefs. It requires an API key from CaptureKit's dashboard, and you'll burn through your quota faster on PDF captures than simple HTML fetches—check usage regularly if you're scraping at scale.

Common use cases

  • Archive competitor landing pages as PDFs
  • Extract metadata from blog posts for research
  • Monitor changelog pages for product updates
  • Analyze SaaS homepages for positioning insights
  • Pull sitemaps to audit site structure

Integration

Vendor
CaptureKit
Category
developer-tools
Auth
API_KEY
Tools
5
Composio slug
capturekit

Tools

  • Analyze Webpage

    Analyze a webpage with AI to identify its summary, value proposition, features, categories, use cases, audience, and optional custom fields.

  • Capture Webpage

    Capture a webpage as an image or PDF and return a downloadable file reference.

  • Extract Webpage Content

    Extract webpage metadata and links, optionally including rendered HTML, Markdown, sitemap data, or cleaned main content.

  • Fetch Page HTML

    Fetch a webpage's raw HTML without browser rendering for fast scraping, audits, or monitoring.

  • Get Usage

    Return the connected workspace's current CaptureKit allowance, usage, API-key status, quotas, and effective rate limits.

Setup

Setup guide

  1. 11. Sign up at CaptureKit's website and generate an API key from your account dashboard. 2. In Switchy, open Settings > Integrations > Developer Tools and click 'Connect CaptureKit'. 3. Paste your API key into the prompt and click 'Authorize'. 4. Switchy confirms the connection and displays your current usage quota. 5. Open any Project and type '@CaptureKit get usage' to verify the integration works. 6. To test a real tool, try '@CaptureKit capture https://example.com as PDF' and wait for the downloadable file reference. 7. If the command times out, check that your API key has sufficient quota and that the target URL is publicly accessible. 8. You can now invoke any of CaptureKit's five tools by @mentioning it in a message and describing the task.

What teammates see: by default, memories from CaptureKit are scoped to the Project (PROJECT visibility) - you can mark any memory PRIVATE or share it ORG-wide.

Works well with

Top models

Compatibility data appears once enough Projects have used this MCP together with a given model.

How Switchy teams use it

Not enough Projects yet to publish anonymised usage stats (we require ≥ 50 Projects per week).

Starter prompts

Capture Landing Page

@CaptureKit capture https://example.com/pricing as a PDF and return the download link

Analyze Homepage Positioning

@CaptureKit analyze https://example.com and tell me the value proposition, primary audience, and top three features

Extract Article Metadata

@CaptureKit extract metadata and main content from https://example.com/blog/post and format it as a summary

Fetch Raw HTML

@CaptureKit fetch the raw HTML from https://example.com and show me the meta tags in the head section

Check API Usage

@CaptureKit get my current usage stats and let me know how many captures I have remaining this month

Example outputs

Illustrative - representative of the model's voice and quality, not literal recordings.

Prompt

@CaptureKit extract the main content and metadata from https://example.com/pricing and return it as Markdown so we can compare their feature tiers.

Output

CaptureKit extracted the pricing page and returned structured metadata (title, description, canonical URL) plus the main content rendered as Markdown. The output includes three pricing tiers with feature lists, monthly costs, and a comparison table. Links to signup flows and documentation are preserved. This illustrative example shows how the MCP isolates the core content from navigation, ads, and boilerplate—useful for competitive analysis or archival snapshots.

Notes

This example highlights the Extract Webpage Content tool's ability to strip away page chrome and return clean Markdown. Requires a valid API key with sufficient quota. The MCP does not execute JavaScript-heavy interactions (like expanding accordions), so dynamic content may be incomplete. Check your usage allowance with the Get Usage tool before bulk extraction runs.

Prompt

@CaptureKit capture https://dashboard.internal.app/reports as a PDF so we can attach it to the quarterly review deck without exposing live credentials.

Output

CaptureKit rendered the dashboard page in a headless browser and returned a downloadable PDF reference (e.g., a signed URL valid for 24 hours). The illustrative PDF includes charts, tables, and the page header as they appeared at capture time. This approach lets you snapshot authenticated or ephemeral views without sharing login tokens. The file is stored temporarily in CaptureKit's workspace.

Notes

This example demonstrates the Capture Webpage tool's ability to render pages that require authentication (you must pass cookies or headers if needed). The PDF is a point-in-time snapshot—data changes after capture won't be reflected. Be mindful of rate limits on capture jobs and the 24-hour expiry of download links. Ideal for compliance archives or stakeholder reports.

Prompt

@CaptureKit analyze https://competitor.io/features and tell me their main value proposition, target audience, and top three features so we can update our positioning doc.

Output

CaptureKit's AI analysis identified the competitor's value proposition as 'real-time collaboration for distributed design teams,' with a target audience of mid-market creative agencies. The top three features extracted were: live co-editing, version-controlled asset libraries, and Figma plugin integration. This illustrative summary also flagged two use cases (remote workshops, client review cycles) and categorized the product under 'design tools.' The analysis runs in seconds and returns structured JSON you can pipe into a report.

Notes

This example showcases the Analyze Webpage tool's ability to synthesize page content into actionable insights without manual reading. The AI's interpretation depends on page structure and clarity—vague marketing copy may yield generic summaries. You can pass custom fields (e.g., 'pricing model', 'integrations') to tailor the analysis. Usage counts against your workspace quota, so batch requests carefully.

Use-case deep-dives

Competitive research sprint

When CaptureKit beats manual screenshots for feature audits

A 6-person product team runs quarterly competitive audits across 40+ SaaS landing pages. CaptureKit's Analyze Webpage tool extracts value props, feature lists, and audience positioning in one call per competitor—no manual note-taking or screenshot stitching. The team drops results into a shared Switchy thread, tags by category, and builds a comparison matrix in under two hours. This works when you're analyzing public-facing pages with clear messaging. If you need to audit logged-in product flows or mobile apps, CaptureKit can't reach behind auth walls—you'll need session recording tools instead. For quarterly or monthly competitive sweeps where speed matters more than pixel-perfect fidelity, CaptureKit turns a two-day research slog into a morning task.

Documentation site monitoring

Track changelog and docs updates without browser automation

A 3-person DevRel team monitors 12 vendor API docs for breaking changes. They use CaptureKit's Extract Webpage Content tool to pull cleaned Markdown snapshots weekly, diff them in Switchy threads, and flag material changes before customer tickets arrive. The Fetch Page HTML tool handles fast checks on status pages and release notes without spinning up headless browsers. This setup works when you're tracking public docs that don't require login and change predictably (weekly or monthly). If a vendor ships multiple updates per day or hides changelogs behind auth, you'll hit rate limits or miss gated content. For small teams watching a manageable set of public resources, CaptureKit replaces cron jobs and Puppeteer scripts with five lines of MCP config.

Customer onboarding asset creation

Generate demo screenshots and PDFs for sales handoffs

A 4-person sales engineering team builds custom onboarding decks for enterprise prospects. They use CaptureKit's Capture Webpage tool to snapshot live product demos, competitor comparisons, and integration partner pages as PDFs—then drop them into Switchy threads tagged by deal stage. The AI Analyze tool pulls feature summaries for slide copy without manual transcription. This works when your demo environments are publicly accessible or you can generate shareable staging URLs. If your product requires complex auth flows or the prospect needs to see their own data in screenshots, CaptureKit can't authenticate or inject test data—you'll need Loom or manual screen recording. For teams that ship 5-10 custom decks per month and want to automate the screenshot grind, CaptureKit cuts deck prep time in half.

Frequently asked

What does the CaptureKit MCP do in Switchy?

It lets your AI agents capture webpages as images or PDFs, extract metadata and content as Markdown, analyze pages for summaries and value propositions, and fetch raw HTML for scraping. All five tools run server-side so you get rendered output even from JavaScript-heavy sites. Useful for competitive research, content audits, or building datasets from public web pages.

Do I need a separate CaptureKit account to use this MCP?

Yes. You'll need a CaptureKit API key, which means signing up at CaptureKit and choosing a plan that fits your capture volume. Paste the key into Switchy's MCP config and the connection is live. The Get Usage tool shows your remaining quota so you know when you're approaching limits.

Can the MCP capture pages behind a login or paywall?

No. CaptureKit renders pages as an anonymous visitor would see them. If the content requires authentication, the capture will show the logged-out view or a login prompt. For authenticated scraping you'll need to handle cookies or sessions outside Switchy, then pass the resulting HTML to the Extract or Analyze tools.

How is this different from just pasting a URL into ChatGPT?

ChatGPT's built-in browser can read some pages but often fails on JavaScript-heavy sites, rate-limits you, and doesn't return images or PDFs. CaptureKit renders everything server-side, returns structured Markdown or downloadable files, and gives you five specialized tools instead of one generic fetch. You also control the API quota and can batch requests through Switchy workflows.

Who on the team should connect the CaptureKit MCP?

Whoever owns your CaptureKit subscription and has the API key. Once connected in Switchy, all workspace members can use the five tools in their chats without needing their own keys. Usage counts against the single CaptureKit account, so coordinate with your team to avoid burning through the quota on low-priority captures.

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Data last verified 61 hours ago.Sources aggregated hourly to weekly. See docs/architecture/model-directory.md.