Stillwind vs Spider Cloud

Side-by-side comparison of features, pricing, and ratings

Analysis reviewed Live tool data as of 2026-09-01
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At a glance

DimensionStillwindSpider Cloud
Primary UseSearch electronic components via AIWeb crawling/scraping API for AI agents
PricingFreeFreemium (pay as you go)
Key FeatureNatural language component searchRust engine with AI extraction
Best ForElectronics engineersAI agent developers
Latest NewsLaunched high-res PCB search (June 2026)Browser AI commands (March 2026)
IntegrationsNone listedLangChain, LlamaIndex, CrewAI, etc.

These tools serve completely different purposes. Choose Stillwind if you need to find electronic components using natural language queries – it's free and purpose-built for engineers. Choose Spider Cloud if you need a high-performance web crawling and scraping API for AI agents, RAG pipelines, or LLMs – it's cost-effective with advanced features like AI extraction and unblocker.

Try StillwindTry Spider Cloud
Stillwind
Stillwind

Natural language electronic component search and BOM copilot for engineers

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Spider Cloud
Spider Cloud

AI web scraping API: crawl, scrape, search any site into markdown or JSON at 10k req/min.

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Pricing
Freemium
Freemium
Plans
$0/mo
Custom
$1/GB + $0.001/min compute
$40/mo (2 concurrency)
$6/mo
Popularity
5 views
7.5k views
Skill Level
Intermediate
Intermediate
API Available
Platforms
Web
WebAPICLI
Categories
🚚 Supply Chain & Logistics
🌐 Web Scraping & Search APIs🖱️ Browser & Computer-Use Agents
Features
Natural language component search
Hybrid semantic + parametric querying
75M+ indexed parts
Millions of structured parameters
Thousands of parsed datasheets with page-level references
Stillwind Builder: compose boards from natural language prompts (beta)
Formalizes system constraints into mathematical specs
Cross-references candidates to resolve incompatibilities
Semantically-validated Bill of Materials (BOM)
High-resolution component search for PCBs (June 2026)
Footprint-matching alternative part suggestions
Search multiple suppliers and datasheets in one query
Pre-built example queries (MCU, buck converter, SAW filter)
Web application with clean interface
AI Librarian service for footprint library fixes (paid)
Scrape any website into markdown, JSON, or raw HTML
Full-site crawling at 100K+ pages/sec
10,000 core API requests per minute default
Web Search API: SERP + scraping + extraction in one call
/ai/search endpoint with relevance gate to skip irrelevant pages
Silk AI model: HTML-to-structured data and captcha solving on GPUs
Browser Cloud: full browser sessions over CDP
AI commands (Act, Extract, Observe) via WebSocket with AI Studio
Multiple output formats: HTML, raw, plain text, markdown, JSON, JSONL, CSV, XML
Stealth browser layer and Unblocker for anti-bot sites
Proxy pool with 215M+ residential and ISP IPs across 199+ countries
Robots.txt compliance on by default, disable per-request
data_connectors parameter: pipe results to S3, GCS, Google Sheets, Azure Blob, Supabase
extraction_schema parameter: AI output conforms to JSON schema
1,000+ ready-made scraper examples across 32 categories
Integrations
LangChain
LlamaIndex
CrewAI
FlowiseAI
AutoGen
Agno

What real users say: Stillwind vs Spider Cloud

Not marketing copy and not our opinion — a structured sweep of public discussion (reviews, forums, communities and video comments), showing what people praise and what they complain about for each tool.

Stillwind

32 mentions across 3 sources · 22% positive — critical

Hacker News, YouTube, Bluesky

What users praise

  • • Natural language search accepts complex spec constraints like voltage range and interface count.
  • • Hybrid search combines semantic and parametric queries for more relevant part matches.
  • • Indexes over 75 million parts from multiple suppliers in one place.
  • • Stillwind Builder auto-generates BOM from a natural language project description.

What frustrates them

  • • No independent user reviews exist to verify real-world accuracy or reliability.
  • • Lacks pricing and stock data, making it incomplete for procurement decisions.
  • • Builder feature is beta and outputs may need manual correction.
  • • No CAD or BOM tool integrations (Altium, KiCad, etc.) break workflow.

Researched Jul 28, 2026

Spider Cloud

41 mentions across 2 sources · 0% positive — critical

YouTube, Lemmy

What users praise

  • • Competitive pay-as-you-go pricing at $1/GB with no expiry.
  • • Default rate limit of 10,000 requests per minute is generous.
  • • Broad output formats (HTML, markdown, JSON, CSV) cover diverse needs.
  • • Integrated Web Search API bundles SERP and extraction for AI agents.

What frustrates them

  • • No community feedback to confirm reliability or performance.
  • • Self-reported metrics lack independent verification.
  • • Stealth browser success may vary across real sites.
  • • Potential legal risks from scraping; compliance is user's responsibility.

Researched Aug 26, 2026

Who should pick which

  • Solo electronics hobbyist
    Pick: Stillwind

    Free forever, natural language search for components, and high-res PCB search – perfect for personal projects.

  • AI agent developer needing real-time web data
    Pick: Spider Cloud

    Rust engine for speed, AI extraction, and integrations with LangChain/CrewAI make it ideal for RAG pipelines.

  • Procurement team sourcing electronic components
    Pick: Stillwind

    AI-driven component matching across thousands of suppliers, free and fast.

  • Building a knowledge base from many websites
    Pick: Spider Cloud

    High success rate, low cost per page, and data connectors to cloud storage.

  • PCB designer needing component details
    Pick: Stillwind

    High-resolution component search for PCBs launched June 2026.

Frequently Asked Questions

Stillwind vs Spider Cloud: which should you choose?

These tools serve completely different purposes. Choose Stillwind if you need to find electronic components using natural language queries – it's free and purpose-built for engineers. Choose Spider Cloud if you need a high-performance web crawling and scraping API for AI agents, RAG pipelines, or LLMs – it's cost-effective with advanced features like AI extraction and unblocker.

Can Stillwind find pricing or stock availability?

No, Stillwind provides links to suppliers and datasheets, but not real-time pricing or inventory data.

Does Spider Cloud offer a free tier?

Yes, Spider Cloud has a free tier with limited usage; after that it's pay-as-you-go at ~$0.03 per 1,000 pages.

Can I integrate Stillwind with my CAD tools?

No, Stillwind currently has no API or plugins for CAD/BOM tool integration.

What kind of data can Spider Cloud extract?

It can output markdown, HTML, JSON, CSV, XML, plain text, and screenshots. It also supports link extraction and search queries.

Is Stillwind's high-resolution PCB search available now?

Yes, it launched in June 2026 and is part of the free service.

Does Spider Cloud have anti-detection features?

Yes, it includes stealth anti-detection, rotating proxies, automatic retries, and an /ai/unblocker endpoint.

Which tool is better for AI agent development?

Spider Cloud is designed for AI agents, with direct integrations into LangChain, LlamaIndex, CrewAI, and support for Browser AI commands.

Are there any reviews for these tools?

Stillwind had a Show HN launch with community feedback; Spider Cloud has received positive press for its speed and low cost.

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Explore each tool further

Stillwind
View Stillwind reviewStillwind alternatives
Spider Cloud
View Spider Cloud reviewSpider Cloud alternatives

Browse these categories

Best AI Supply Chain & Logistics toolsBest AI Web Scraping & Search APIs toolsBest AI Browser & Computer-Use Agents tools
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Last reviewed: July 3, 2026