Spider Cloud MCP

Spider MCP server: crawl, scrape, search, and automate browsers at scale

The fastest web crawling, scraping, and browser automation server for AI agents. Gives Claude direct access to the web through 22 tools — crawl sites at 100K+ pages/sec, extract structured data with AI, and control remote browsers with built-in anti-bot bypass.

- Speed— Crawl 100K+ pages per second. Smart request routing picks HTTP or headless Chrome automatically. Streaming responses start delivering data immediately.
- Cost— Pay-per-use credits with no subscription required for core tools. Check your balance anytime withspider_get_credits. AI tools available with anAI subscription.
- Reliability— Anti-bot bypass with fingerprinting and proxy rotation. Browser fleet with automatic fallback across Chrome, Firefox, and more. Built-in retry and stealth escalation.

claude mcp add spider -- npx -y spider-cloud-mcp

export SPIDER_API_KEY="your-api-key"

{ "mcpServers": { "spider": { "command": "npx", "args": ["-y", "spider-cloud-mcp"], "env": { "SPIDER_API_KEY": "your-api-key" } } } }

{ "mcpServers": { "spider": { "command": "npx", "args": ["-y", "spider-cloud-mcp"], "env": { "SPIDER_API_KEY": "your-api-key" } } } }

Add to~/.codeium/windsurf/mcp_config.json:

{ "mcpServers": { "spider": { "command": "npx", "args": ["-y", "spider-cloud-mcp"], "env": { "SPIDER_API_KEY": "your-api-key" } } } }

These work on pay-per-use credits with no subscription required.

Natural language web interaction. Describe what you want in plain English.

Direct browser control via spider-browser. Browsers run in Spider's cloud with smart retry, browser switching, anti-bot protection, proxy rotation, and automatic stealth escalation. Supports CDP and BiDi protocols.

Browser sessions auto-close after 5 minutes of inactivity. Always callspider_browser_closewhen done.

"Crawl the React documentation and summarize the hooks API"

Usesspider_crawlto fetch 50+ pages in seconds and return clean markdown ready for context.

spider_crawl: { url: "https://react.dev/reference/react", limit: 50, return_format: "markdown", filter_output_main_only: true }

"Get all product names and prices from this e-commerce page"

Usesspider_ai_scrapeto extract structured JSON with zero CSS selectors.

spider_ai_scrape: { url: "https://example-store.com/products", prompt: "Extract every product name, price, and availability status as JSON" }

"Log into the dashboard, go to reports, and screenshot the monthly summary"

Usesspider_browser_*tools to drive a remote browser with full anti-bot protection.

1. spider_browser_open: { browser: "auto" } 2. spider_browser_navigate: { url: "https://app.example.com/login" } 3. spider_browser_fill: { selector: "input[name='email']", value: "user@example.com" } 4. spider_browser_fill: { selector: "input[name='password']", value: "..." } 5. spider_browser_click: { selector: "button[type='submit']" } 6. spider_browser_wait_for: { navigation: true } 7. spider_browser_navigate: { url: "https://app.example.com/reports/monthly" } 8. spider_browser_screenshot: {} 9. spider_browser_close: {}

"Search for recent AI startup funding rounds and get the details"

Usesspider_searchwith time filtering, thenspider_scrapefor details.

spider_search: { search: "AI startup Series A funding 2025", num: 10, fetch_page_content: true, return_format: "markdown", tbs: "qdr:m" }

All tools map directly to theSpider API. Core tools accept the same parameters as their API counterparts:

- Crawl/Scrape:url,return_format,request,readability,root_selector,proxy_enabled,cache, andmany more
- Search:search,num,fetch_page_content,country,language,tbs
- AI tools: Add apromptparameter describing what you want in natural language
- Browser tools: Usesession_idfromspider_browser_openfor all operations

Full parameter reference:spider.cloud/docs/api

- Website
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- Get API Key
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Fault-tolerant MCP Server for Stealth Web Search and Fetching