Runtm vs Spider Cloud

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

Analysis reviewed Live tool data as of 2026-08-23
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At a glance

DimensionRuntmSpider Cloud
PricingFree tier (very limited) + paid plans for teams/enterpriseFree tier + paid plans starting ~$0.03/1k pages; AI Studio add-on $6/mo
Core Use CaseIsolated cloud sandboxes for AI coding agentsWeb crawling & scraping for AI agents & RAG pipelines
Primary AudienceEngineering teams using coding agents (Claude Code, Codex, etc.)Developers building AI agents needing web data
Key IntegrationsClaude Code, Cursor, Codex, Copilot, Gemini CLI, Devin, OpenCode, Slack, Linear, GitHub, Jira, DatadogLangChain, LlamaIndex, CrewAI, FlowiseAI, AutoGen, Agno, Dify, S3, GCS, Sheets, Azure Blob, Supabase
Latest FeaturePersistent runtimes for AI development & YC P26 batch (Jul 2026)Browser AI commands (Act, Extract, Observe) via WebSocket (Mar 2026)
Self-HostingSelf-hosting option available (Enterprise)Open-source core available on GitHub

Choose Spider Cloud if you need fast, low-cost web scraping and crawling for AI agents or RAG — its Rust engine and 99.9% success rate deliver reliable structured data. Choose Runtm if you run coding agents (Claude Code, Codex, etc.) and need secure, isolated sandboxes with monitoring and governance. They solve completely different problems: data ingestion vs. agent execution environments.

Try RuntmTry Spider Cloud
Runtm
Runtm

Sandboxed cloud agents with guardrails, live visibility, and BYOK for every team.

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Spider Cloud
Spider Cloud

AI web scraping API that turns any site into markdown or JSON for AI agents, pay-as-you-go or flat-rate.

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Pricing
Freemium
Freemium
Plans
$0/month
$99/seat/month
Custom
$0
$1/GB
$40/mo
$6/mo
Popularity
2 views
7.5k views
Skill Level
Intermediate
Intermediate
API Available
Platforms
WebAPICLI
WebAPICLI
Categories
🧠 Agent Memory & Runtimes🛡️ AI Governance & Guardrails🛠️ Autonomous Coding Agents
🌐 Web Scraping & Search APIs🖱️ Browser & Computer-Use Agents
Features
Isolated cloud sandboxes for AI coding agents
Pre-warmed environments via snapshots (boot ~2s)
Agent-agnostic: supports Claude Code, Codex, Cursor, Gemini CLI, Copilot, Devin, OpenCode
Bring your own API keys (BYOK) for AI providers
Trigger agents from Slack, Teams, email, GitHub, or schedules
Real-time collaboration and session handoff
Mission Control dashboard for live visibility and monitoring
Approval gates for sensitive actions (e.g., refunds over $500)
Spend controls, network allowlists, and role-based access control
Background agent runs with auto-pause and run storage
Environment templates for monorepos and microservices
Tool integration with any API, CLI, or MCP server
Read-only database access scopes (Postgres, Snowflake, BigQuery)
Scrape any website into markdown or JSON
Full-site crawling at 100K+ pages/sec
SERP, scraping, and extraction in one Web Search API call
Silk custom AI model for HTML-to-structured-data and captcha solving
Browser Cloud with CDP control and AI commands via WebSocket
Supports HTML, raw, plain text, JSON, JSONL, CSV, and XML
Stealth browser layer to bypass anti-bot measures
1,000+ ready-made scraper examples across 32 categories
10,000 core API requests per minute by default
Flat-rate Unlimited plan and pay-as-you-go with no expiry
Rust engine for performance
Robots.txt compliance on by default, disable per-request
Native integrations for LangChain, LlamaIndex, CrewAI, FlowiseAI, AutoGen, Agno
Integrations
Slack
Teams
GitHub
Zendesk
Stripe
Postgres
Snowflake
BigQuery
Datadog
LangChain
LlamaIndex
CrewAI
FlowiseAI
AutoGen
Agno

What real users say: Runtm 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.

Runtm

30 mentions across 3 sources · 35% positive — critical

Hacker News, Bluesky, GitHub

What users praise

  • • Agent-agnostic: works with Claude Code, Cursor, Codex, Gemini CLI.
  • • Bring your own API keys (BYOK) reduces vendor lock-in.
  • • Sandboxed environments with pre-warmed snapshots boot quickly.
  • • Mission Control dashboard provides live visibility and spend controls.

What frustrates them

  • • Signup bugs (OAuth failure) can block new account creation.
  • • Broken Discord invite hinders community support access.
  • • Very limited real-world usage data—reliability unproven.
  • • No large-scale performance benchmarks available publicly.

Researched Jul 6, 2026

Spider Cloud

41 mentions across 2 sources · 10% positive — critical

YouTube, Lemmy

What users praise

  • • One endpoint for scraping, crawling, search, and browser automation.
  • • Converts sites to markdown, JSON, JSONL, CSV, XML—flexible outputs.
  • • Rust engine and stealth browser claim strong anti-bot bypass.
  • • Silk AI model handles captchas and HTML-to-structured data on GPUs.

What frustrates them

  • • No real user reviews to validate performance or reliability.
  • • Brand name confuses with Spider-Man, hurting discoverability.
  • • Pricing details are vague—hidden costs may apply.
  • • Learning curve for non-developers could be steep.

Researched Aug 18, 2026

Who should pick which

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

    Spider Cloud's API with Rust engine offers fast crawling, structured output, and integrations with LangChain/LlamaIndex for RAG pipelines.

  • Engineering team using Claude Code/Codex for development
    Pick: Runtm

    Runtm provides isolated sandboxes, pre-warmed environments, and governance controls for safe and monitored coding agent execution.

  • Data scientist scraping websites for training data
    Pick: Spider Cloud

    Low cost at $0.03/1k pages, support for multiple output formats, and data connectors to cloud storage make it ideal for dataset collection.

  • Startup building autonomous coding agents
    Pick: Runtm

    Agent-agnostic platform with background runs, session handoff, and integration with GitHub/Linear fits agent automation workflows.

  • Solo founder needing quick scrape of competitor data
    Pick: Spider Cloud

    Free tier available, plus 1,000+ scraper examples to copy from; no need to set up own proxy infrastructure.

Frequently Asked Questions

Runtm vs Spider Cloud: which should you choose?

Choose Spider Cloud if you need fast, low-cost web scraping and crawling for AI agents or RAG — its Rust engine and 99.9% success rate deliver reliable structured data. Choose Runtm if you run coding agents (Claude Code, Codex, etc.) and need secure, isolated sandboxes with monitoring and governance. They solve completely different problems: data ingestion vs. agent execution environments.

What is the main difference between Spider Cloud and Runtm?

Spider Cloud is a web crawling/scraping API for AI data ingestion; Runtm is an open-source sandbox platform for running AI coding agents securely.

Can Spider Cloud be used for coding agent sandboxes?

No, Spider Cloud is not designed for code execution or sandboxing; it fetches and structures web data.

Can Runtm scrape websites?

No, Runtm does not provide web scraping capabilities; it focuses on providing isolated environments for coding agents.

Which tool is more cost-effective for high-volume scraping?

Spider Cloud, with its $0.03 per 1,000 pages and free tier, is very cost-effective for high-volume scraping.

Do both tools support self-hosting?

Spider Cloud offers an open-source core on GitHub; Runtm offers self-hosting for Enterprise plans.

What are the latest updates for Spider Cloud?

Browser AI commands (Act, Extract, Observe) via WebSocket were released March 2026, plus dashboard logs redesign and scraper catalog with 1,000+ examples.

What are the latest updates for Runtm?

July 2026: persistent runtimes explanation, AI coding agents state report, and joining Y Combinator P26 batch.

Which integrations does Spider Cloud have that Runtm lacks?

Spider Cloud integrates with LangChain, LlamaIndex, CrewAI, FlowiseAI, AutoGen, Agno, Dify, and cloud storage (S3, GCS, Azure Blob) — all absent from Runtm.

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Explore each tool further

Runtm
View Runtm reviewRuntm alternatives
Spider Cloud
View Spider Cloud reviewSpider Cloud alternatives

Browse these categories

Best AI Agent Memory & Runtimes toolsBest AI Web Scraping & Search APIs toolsBest AI AI Governance & Guardrails toolsBest AI Browser & Computer-Use Agents tools
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Last reviewed: July 3, 2026