EverMemOS vs Spider Cloud

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

Analysis reviewed Live tool data as of 2026-10-18
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At a glance

DimensionEverMemOSSpider Cloud
Core CapabilityPersistent agent memory OS with self-evolving skillsFast web crawling & scraping API for AI data ingestion
Integration StyleAPI-first; multi-agent coordination; Skill Hub with 100k+ skillsAPI + WebSocket; LangChain/LlamaIndex/CrewAI ready; data connectors
Target UserDevelopers building long-term memory agents; enterprise teams; researchersAI agent & RAG developers needing real-time web data; high-volume scraping
Open SourceOpen benchmarks; platform not open sourceOpen-source core (Rust engine) available on GitHub
Latest InnovationMemory Sparse Attention (MSA) for >100M tokens; SOTA benchmarks (March 2026)Browser AI commands (Act/Extract/Observe via WebSocket) + Silk model (March 2026)

Pick EverMemOS if your priority is persistent, self-evolving memory for AI agents across sessions and platforms, especially for multi-agent coordination or research. Choose Spider Cloud if you need fast, cost-effective web data ingestion for RAG pipelines or AI agents that require up-to-date content from the web. They solve different problems: memory vs. data acquisition.

EverMemOS
EverMemOS

Memory OS that turns stateless LLMs into agents with persistent, self-evolving recall across sessions and teams.

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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
Contact Sales
Freemium
Plans
—
$1/GB + $0.0001/CPU-min
From $6/mo
From $40/mo
Custom
Popularity
13 views
7.5k views
Skill Level
Advanced
Intermediate
API Available
Platforms
API
WebAPIPluginCLIDesktop
Categories
🧠 Agent Memory & Runtimes
🌐 Web Scraping & Search APIs🖱️ Browser & Computer-Use Agents
Features
Self-evolving Skill Memory: records agent trajectories as Cases and distills repeated patterns into reusable Skills
mRAG multimodal ingestion parses PDFs, images, Word documents, spreadsheets, presentations, emails, HTML pages, text
Cross-modal hybrid retrieval across different memory types
Memory Bank interface to inspect, manage, and edit user, group, and agent memory — including generated Skills
Temporal tracking separates current facts from outdated ones when pricing, roles, or preferences change
Multi-agent memory sharing and coordination across platforms and teams
Multi-round retrieval with a small decider model that stops the search early
CRAFT video token fusion via global similarity merging, position-aware weights, and a channel-wise gate
SkillCorpus retrieval stack built on ~821,000 crawled skills filtered to 96,401 audited skills
HarnessBank with validity checks, activation checks, paired significance testing, and a sealed test set
Open, reproducible benchmarks: LoCoMo 93.05%, LongMemEval 83.00%, HaluMem 93.04%
Memory Sparse Attention (MSA) for efficient long-term memory
Voice conversation support
Vision and image understanding support
API-first developer platform
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
GitHub
Discord
LangChain
LlamaIndex
CrewAI
FlowiseAI
Langflow
Dify
Agno
MCP
Claude Code
Codex
Cursor
Claude Desktop
Amazon S3
Google Cloud Storage
Google Sheets

Who should pick which

  • Developer building a persistent AI assistant
    Pick: EverMemOS

    EverMemOS provides persistent memory across sessions, self-evolving skills, and a Memory Bank interface, ideal for assistants that need to remember user context over time.

  • RAG pipeline builder needing fresh web data
    Pick: Spider Cloud

    Spider Cloud's fast crawling and structured extraction (markdown, JSON) feeds RAG pipelines; integrates with LangChain and LlamaIndex.

  • Research team evaluating memory systems
    Pick: EverMemOS

    EverMemOS offers open-source reproducible benchmarks (LoCoMo, LongMemEval, HaluMem) and SOTA results, making it a strong choice for researchers.

  • Startup needing cost-effective scraping at scale
    Pick: Spider Cloud

    Freemium pricing at $0.03/1k pages with no billing for failures is budget-friendly; open-source core allows self-hosting for even more savings.

  • Enterprise requiring multi-agent memory coordination
    Pick: EverMemOS

    EverMemOS supports group memory, user memory, agent memory separation and multi-agent memory sharing, crucial for enterprise teams.

Frequently Asked Questions

EverMemOS vs Spider Cloud: which should you choose?

Pick EverMemOS if your priority is persistent, self-evolving memory for AI agents across sessions and platforms, especially for multi-agent coordination or research. Choose Spider Cloud if you need fast, cost-effective web data ingestion for RAG pipelines or AI agents that require up-to-date content from the web. They solve different problems: memory vs. data acquisition.

Can Spider Cloud provide persistent memory for AI agents?

No, Spider Cloud is a web crawling/scraping API; it does not offer persistent memory. It provides real-time data ingestion.

Does EverMemOS support web crawling?

EverMemOS focuses on memory management, not web crawling. It can ingest data via API but has no built-in web scraping.

Which tool is better for a simple chatbot that doesn't need memory?

Neither is optimal. Spider Cloud can feed data, but a simpler library may suffice. EverMemOS is overkill.

Are both tools suitable for researchers?

EverMemOS is more research-oriented with open benchmarks and SOTA results. Spider Cloud is production-focused but its open-source core can be used for research.

What integrations do they offer?

EverMemOS integrates with GitHub and Discord. Spider Cloud integrates with LangChain, LlamaIndex, CrewAI, FlowiseAI, AutoGen, Agno, Dify, and data connectors (S3, GCS, etc.).

Can I self-host EverMemOS?

The static description mentions open-source benchmarks but not self-hosting of the platform. Latest news does not indicate self-host availability.

Does Spider Cloud handle anti-bot measures?

Yes, it offers stealth anti-detection, rotating proxies, automatic retries, and an /ai/unblocker endpoint. However, it may not be suitable for very aggressive anti-bot sites.

Which tool has better support for developers?

Both are developer-focused. EverMemOS is API-first with memory optimization; Spider Cloud provides SDKs and integrations with popular AI frameworks.

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Last reviewed: July 2, 2026