GoScreenAPI MCP Server

Give your AI assistant the ability to screenshot, analyze, and verify any website — directly from the chat. A Model Context Protocol server that connects GoScreenAPI to Claude Desktop, Cursor, Cline, Windsurf, Continue, and any other MCP-compatible client.

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What you can ask your AI

"Take a full-page screenshot of stripe.com/pricing and compare it with square.com/pricing — tell me which one mentions 'no hidden fees'."

"Is github.com down right now? If yes, when was the last successful check?"

"What CMS does vercel.com use, and is their SSL certificate expiring soon?"

"Capture the current state of these 12 competitor landing pages and save the URLs to a markdown table."

"Render this Notion page as a PDF and embed it in our changelog."

The MCP server exposes the full GoScreenAPI capability set as 7 typed tools the AI can call autonomously.

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Quick start

1. Get an API key

Sign up at goscreenapi.com (free tier includes 100 screenshots/month) and grab a key from the API Keys dashboard.

2. Add to your MCP client config

Claude Desktop

Open ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows) and add:

{
  "mcpServers": {
    "goscreenapi": {
      "command": "npx",
      "args": ["-y", "@goscreenapi/mcp-server"],
      "env": {
        "GOSCREENAPI_KEY": "sk_your_key_here"
      }
    }
  }
}

Restart Claude Desktop. The 7 tools should appear in the 🔨 menu.

Cursor

Open Cursor settings → MCP → Add server, then paste the same JSON snippet above.

Cline / Continue / Windsurf

All use the same MCP config schema. Refer to your client's MCP docs for the config file location and add the snippet under mcpServers.

3. Try it

Ask the AI:

Take a screenshot of news.ycombinator.com at 1920x1080 viewport.

The AI will call the screenshot tool and reply with a CDN link.

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Available tools

Tool	What it does
screenshot	Capture any URL → PNG / JPEG / WebP / PDF. Custom viewport, full-page, dark mode, ad blocking, custom user agent.
site_report	Detected tech stack (CMS, server, CDN, frameworks, JS libs), SSL info, DNS records, page-speed rating, SEO meta tags.
uptime_check	Live HTTP probe. Returns status code, response time in ms, SSL validity.
compare_screenshots	Two URLs side-by-side, parallel capture. Perfect for staging vs production, competitor pages, before vs after redesigns.
render_pdf	Render a URL to PDF. A4 / Letter / Legal / Tabloid, landscape, custom scale.
batch_screenshots	Up to 50 URLs in parallel. Waits for completion (max 90s) and returns all results.
account_info	Current API account: plan name, usage quotas, remaining credits. Useful before launching a large batch.

Run account_info first if you want the AI to plan around your quota.

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Configuration

Env var	Required	Default	Description
GOSCREENAPI_KEY	yes	—	API key from your dashboard
GOSCREENAPI_BASE_URL	no	https://goscreenapi.com	Override for white-label deploys or local dev

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Example prompts

Visual diffing during code review

Compare https://staging.acme.com/dashboard with https://acme.com/dashboard
at 1440px width, full page. Tell me what visual differences you can identify.

Tech stack research

For each of these competitors, tell me their CMS, CDN, and SSL issuer:
- vercel.com
- netlify.com
- cloudflare.com
- railway.app

Outage triage

Is openai.com down? If it's up, what's the response time? Compare to
anthropic.com and google.com.

Documentation snapshots

Take a full-page screenshot of https://docs.stripe.com/api/charges
in dark mode and save the URL. We'll embed it in our migration guide.

Bulk archival

Capture screenshots of all 30 URLs in this list and give me a markdown
table with the link to each.

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Architecture

┌──────────────────┐    stdio    ┌──────────────────────┐    HTTPS    ┌──────────────────┐
│  Claude Desktop  │◄──────────►│ goscreenapi-mcp      │◄──────────►│  goscreenapi.com │
│  Cursor / Cline  │   MCP      │ (this package, npx)  │   X-API-Key │  (REST API)      │
└──────────────────┘            └──────────────────────┘             └──────────────────┘

The server runs as a short-lived child process spawned by your MCP client. It speaks MCP over stdin/stdout and forwards calls to GoScreenAPI over HTTPS using your API key.

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Roadmap

• competitor_watch — detect changes to a competitor's site over time
• security_audit — run an OWASP-style scan and return findings
• crawl_site — full-site crawl with broken-link report
• archive_snapshot — store a permanent timestamped snapshot
• Image responses (return the actual screenshot bytes, not just a URL — pending MCP image content support in client UIs)

PRs welcome. See the GoScreenAPI public roadmap for what's shipping next on the platform side.

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Local development

git clone https://github.com/bymtnturk/goscreenapi-mcp.git
cd goscreenapi-mcp
npm install
npm run build

GOSCREENAPI_KEY=sk_... node dist/index.js

Use the MCP Inspector to interactively test tools without a chat client:

npx @modelcontextprotocol/inspector node dist/index.js

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License

MIT — see LICENSE.

Built and maintained by the team at GoScreenAPI. Issues and PRs welcome.