Agent Device vs Spider Cloud

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

Analysis reviewed Live tool data as of 2026-10-19
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At a glance

DimensionAgent DeviceSpider Cloud
Primary UseCLI for AI agents to control mobile/TV/desktop devicesWeb crawling/scraping API for AI agents and RAG pipelines
Key FeatureToken-efficient UI snapshots via accessibility tree, stable element references (@e1)Rust engine, 1,000+ scraper examples, Browser AI commands
IntegrationsNot listedLangChain, LlamaIndex, CrewAI, FlowiseAI, AutoGen, Agno, cloud storage connectors
PlatformCLI (local/CI), supports simulators and physical devicesCloud API, self-host option
Best ForMobile device interaction by AI agentsWeb data extraction for LLMs
Try Agent DeviceTry Spider Cloud
Agent Device
Agent Device

Open-source CLI from Callstack that gives AI agents token-efficient, LLM-readable snapshots and control of real iOS, Android, TV, and desktop apps.

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Spider Cloud
Spider Cloud

Spider Cloud is a web scraping, crawling, and search API that streams live pages as markdown or JSON for AI agents and RAG pipelines.

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Pricing
Free
Freemium
Plans
$0
$1/GB + $0.0001/CPU-min
From $6/mo
From $40/mo
Custom
Popularity
16 views
7.5k views
Skill Level
Advanced
Intermediate
API Available
Platforms
CLI
WebAPIPluginCLIDesktop
Categories
🖱️ Browser & Computer-Use Agents🧪 Software Testing & QA
🌐 Web Scraping & Search APIs🖱️ Browser & Computer-Use Agents
Features
Accessibility-tree snapshots rendered as token-efficient, LLM-readable UI views
Stable element refs (@e1, @e2) for repeatable targeting across runs
`snapshot -i` returns only interactive elements to shrink context
Snapshot refinement flags, e.g. `snapshot -i -c -d 4`
Semantic selectors: `find "Sign In" click` and `find role button click`
Drives real apps on iOS, Android, TV, and desktop targets
Cross-platform runs via --platform ios, --platform android, or --target tv
Switch between simulators, physical QA devices, and TV-class targets
Pin a specific device with --serial, e.g. --serial emulator-5554
Record exploratory sessions to a replayable .ad script with --save-script
Deterministic replay via `agent-device replay`, plus experimental -u selector healing
Typed TypeScript client (createAgentDeviceClient) with simulators.ensure and capture.snapshot
Session lock policy such as 'reject' for concurrent-session safety
Parsed log capture with `agent-device logs mark` and network dumps via `network dump`
Screenshots, screen recordings, airplane-mode toggling, and push notification triggers
Scrape a single page into markdown, JSON, HTML, raw, or plain text
Crawl entire sites with each page streamed as one JSONL line in order as it finishes
Web search endpoint returns SERP results plus the scraped pages behind them
Custom browser renders like a user: scripts run, lazy images load, infinite scroll reaches the end
Load protected pages through a real browser engine with geo checks, returning a 200
Run full browser sessions over WebSocket with anti-detection and rotating exits
Send AI commands (Act, Extract, Observe) over the Browser API WebSocket
Send a prompt on a scrape or crawl request and get named fields back as JSON
Two-phase AI extraction: a fast model for most pages, a stronger model for complex layouts
Provider router sends scrape and crawl requests to outside providers on your own keys
Data connectors pipe crawl results into S3, GCS, Google Sheets, Azure Blob, or Supabase
Proxy network with 215M+ residential and ISP exits in 199 countries, rotated per request
MCP server at mcp.spider.cloud for Claude Code, Codex, Cursor, and Claude Desktop
1,000+ ready-made scraper examples across 32 categories, each with working code
API responses support JSON, JSONL, CSV, and XML; up to 10,000 core API requests per minute by default
Integrations
LangChain
LlamaIndex
CrewAI
FlowiseAI
Langflow
Dify
Agno
MCP
Claude Code
Codex
Cursor
Claude Desktop
Amazon S3
Google Cloud Storage
Google Sheets

What real users say: Agent Device 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.

Agent Device

63 mentions across 5 sources · 36% positive — critical (averaged across 5 sources)

Hacker News, YouTube, Bluesky, GitHub, Lemmy

What users praise

  • • Free and open-source with no pricing tiers.
  • • Token-efficient accessibility-tree snapshots reduce LLM costs.
  • • Stable element references (@e1, @e2) for reliable agent interaction.
  • • Cross-platform support for iOS, Android, TV, and desktop.

What frustrates them

  • • Very early stage with 37 open GitHub issues.
  • • Thin community feedback makes reliability hard to judge.
  • • No official integrations or plugin ecosystem yet.
  • • Limited documentation beyond basic CLI usage.

Researched Jul 15, 2026

Spider Cloud

No verifiable community signal. We scanned public discussion on Oct 14, 2026 and found posts matching the name “Spider Cloud”, but could not establish that they are about this product rather than something else sharing its name. Rather than publish a score built on the wrong subject, we publish none.

Who should pick which

  • Developer building a RAG chatbot
    Pick: Spider Cloud

    Spider Cloud provides fast, low-cost web scraping API with LangChain and LlamaIndex integrations, perfect for feeding real-time web data into LLMs.

  • AI agent needing to test iOS apps
    Pick: Agent Device

    Agent Device's CLI gives structured, token-efficient access to iOS simulators and physical devices via accessibility tree snapshots.

  • Researcher scraping large datasets
    Pick: Spider Cloud

    With 1,000+ scraper examples, high success rate, and low per-page cost, Spider Cloud handles bulk extraction efficiently.

  • Team automating mobile agent workflows
    Pick: Agent Device

    Agent Device's cross-platform support and deterministic replay make it ideal for integrating mobile automation into agent pipelines.

Frequently Asked Questions

Can I use Spider Cloud for interactive browser automation?

Yes, Spider Cloud recently added Browser AI commands via WebSocket (Act, Extract, Observe) for interactive automation, though its primary focus is scraping.

Does Agent Device support cloud device farms?

Agent Device is a local CLI; it can connect to remote devices via a proxy, but it does not include a built-in cloud farm.

Which tool is better for non-developers?

Spider Cloud offers an AI Studio for natural language crawling, making it more accessible. Agent Device is a CLI requiring technical expertise.

Can I self-host Spider Cloud?

Yes, Spider Cloud offers an open-source fallback for self-hosting in addition to its cloud API.

Does Agent Device integrate with LLM frameworks?

Agent Device provides a typed TypeScript client for programmatic integration, but no official list of LLM framework integrations.

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Explore each tool further

Agent Device
View Agent Device reviewAgent Device alternatives
Spider Cloud
View Spider Cloud reviewSpider Cloud alternatives

Browse these categories

Best AI Browser & Computer-Use Agents toolsBest AI Web Scraping & Search APIs toolsBest AI Software Testing & QA tools
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Last reviewed: July 8, 2026