Mengram 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

DimensionMengramSpider Cloud
PricingFree tier: 40 memory adds/mo; paid from $20/moFree tier: 500 pages/mo; paid from $49/mo
Core FunctionPersistent AI agent memory (semantic, episodic, procedural)Web crawling, scraping, and search API
Open SourceYes (Apache 2.0, self-hosting available)Yes (core engine on GitHub)
IntegrationsMCP server, LangChain, CrewAI, n8n, Claude, Cursor, Windsurf, Codex, OpenAI Agent BuilderLangChain, LlamaIndex, CrewAI, FlowiseAI, AutoGen, Agno, Dify, S3, GCS, Supabase
Target UserDevelopers building multi-session AI assistantsAI agents and RAG pipelines needing live web data
Latest News Highlight2026-05-06: Production memory patterns; multi-tenant MCP support (2026-04-22)2026-03-05: Browser AI commands (Act, Extract, Observe); scraper catalog with 1,000+ examples (2026-02-25)

Mengram and Spider Cloud serve fundamentally different needs: one provides persistent memory for AI agents, the other live web data. If your priority is giving agents long-term recall across sessions, start with Mengram's free tier and scale up. If you need real-time web scraping with structured output for RAG, Spider Cloud is the clear choice thanks to its cheap per-page cost and extensive catalog. For most teams, you'll likely need both eventually.

Mengram
Mengram

AI memory API: persistent, cross-tool memory for Claude, Cursor, and Codex agents

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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
$5/mo
$19/mo
$59/mo
$99/mo
Custom
$1/GB + $0.001/min compute
$40/mo (2 concurrency)
$6/mo
Popularity
3 views
7.5k views
Skill Level
Intermediate
Intermediate
API Available
Platforms
WebAPIPluginCLIDesktop
WebAPICLI
Categories
🧠 Agent Memory & Runtimes
🌐 Web Scraping & Search APIs🖱️ Browser & Computer-Use Agents
Features
One-click Claude connector for claude.ai & Desktop
CLI for Claude Code, Cursor & Windsurf
MCP server with 30 memory tools
Semantic, episodic, and procedural memory extraction
Cognitive Profile generation (ready-to-use system prompt)
Knowledge Graph: entities, relations, facts
Smart Triggers: contradictions, reminders, pattern detection
Procedure evolution from successes and failures
Memory Agents: Curator, Connector, Digest (autonomous)
Native multilingual retrieval across 23 languages
Import ChatGPT exports, Obsidian vaults, or text files
REST API + Webhooks
Multi-tenant user_id isolation
Survives /clear, auto-compaction, and machine switches
Open-source, self-hostable (Apache 2.0)
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
Claude
Claude Desktop
Cursor
Windsurf
Codex
ChatGPT
LangChain
CrewAI
n8n
Vapi Voice
OpenAI Agent Builder
OpenClaw
LlamaIndex
FlowiseAI
AutoGen
Agno

What real users say: Mengram 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.

Mengram

34 mentions across 5 sources · 56% positive — mixed

Hacker News, YouTube, Product Hunt, GitHub, Lemmy

What users praise

  • Three memory types (semantic, episodic, procedural) are more human-like than flat vectors.
  • Cognitive Profile generation makes personalization easy with one API call.
  • Low latency (<50ms) for memory operations, as claimed in documentation.
  • Multilingual support with 23 languages via Cohere embeddings is a standout feature.

What frustrates them

  • MCP server returns Cloudflare 403 error for some users, breaking core functionality.
  • Self-hosting documentation is unclear; version mismatches reported.
  • Hard edge cases like contradictions and staleness lack built-in resolution.
  • Very small community (183 stars, 20 issues) means limited support resources.

Researched Jul 6, 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

  • Developer building a personal AI assistant with long-term memory
    Pick: Mengram

    Mengram's three memory types and Cognitive Profile give the assistant human-like recall across sessions, and its MCP server integrates with Claude Desktop, Cursor, and Windsurf.

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

    Spider Cloud's Rust engine, structured output, and 1,000+ scraper examples make it fast and reliable to feed fresh content into RAG pipelines.

  • Multi-agent system team wanting shared memory
    Pick: Mengram

    Mengram supports multi-tenant MCP servers with user_id isolation (announced 2026-04-22) and integrates with CrewAI persistent memory.

  • Startup building a web-scraping service for AI agents
    Pick: Spider Cloud

    Spider Cloud's competitive $0.03 per 1K pages, high success rate, and data connectors to S3/GCS/Supabase reduce infrastructure overhead.

Frequently Asked Questions

Mengram vs Spider Cloud: which should you choose?

Mengram and Spider Cloud serve fundamentally different needs: one provides persistent memory for AI agents, the other live web data. If your priority is giving agents long-term recall across sessions, start with Mengram's free tier and scale up. If you need real-time web scraping with structured output for RAG, Spider Cloud is the clear choice thanks to its cheap per-page cost and extensive catalog. For most teams, you'll likely need both eventually.

Can Mengram be used for web scraping?

No, Mengram is a memory layer for AI agents; it does not crawl or scrape web pages. For web data, pair it with Spider Cloud.

Does Spider Cloud provide persistent memory?

No, Spider Cloud focuses on data extraction and does not offer persistent memory across sessions. Use Mengram for memory needs.

Are both tools open-source?

Yes. Mengram is Apache 2.0 with self-hosting options. Spider Cloud's core engine is also available on GitHub.

Which tool is better for LangChain?

Both integrate with LangChain. Use Mengram for memory (via LangChain Retriever) and Spider Cloud for web data retrieval.

Does Mengram support multiple languages?

Yes, it uses Cohere multilingual embeddings to retrieve memories in 23 languages, addressing English-only bias (announced 2026-05-04).

Does Spider Cloud have anti-bot measures?

Yes, it offers a Browser Cloud with stealth anti-detection, rotating proxies, and automatic retries via its unblocker endpoint.

What are the free tier limits?

Mengram: 40 memory adds/month, no credit card needed. Spider Cloud: 500 pages/month. Both have no time limit.

Can I use both tools together?

Yes, they are complementary. Spider Cloud feeds fresh web data into AI agents, and Mengram remembers that data across sessions.

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Last reviewed: July 3, 2026