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ChainMemory VS EXT

Compare ChainMemory VS EXT and see what are their differences

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  3. » Reviews
  4. » Alternatives

ChainMemory logo ChainMemory

Portable, verifiable memory for AI agents — works across ChatGPT, Claude, Gemini and any MCP client

EXT logo EXT

Cross-platform software store for games and utilities
  • ChainMemory
    Image date //
    2026-07-02
  • ChainMemory
    Image date //
    2026-07-02
  • ChainMemory
    Image date //
    2026-07-02

ChainMemory gives your AI agents persistent memory that belongs to YOU — not to a single vendor.

Save a memory in ChatGPT, recall it in Claude or Gemini. Available via Chrome extension, MCP server (npm), or REST API. Every memory gets a cryptographic fingerprint and project states are anchored with Merkle proofs, so anyone can independently verify integrity — no trust required.

Memories consolidate into a structured Project Brain (decisions, milestones, risks) instead of a pile of raw notes. Multi-agent native: Claude, Cursor and GPT share one consolidated state. Free tier available.

Not present

ChainMemory features and specs

  • Cross-model memory
    Save in ChatGPT, recall in Claude, Gemini, Perplexity or Copilot
  • MCP Server
    Native integration with Claude Desktop, Cursor and any MCP client (npm)
  • Chrome Extension
    One-click save and context injection on any AI chat
  • Project Brain
    Consolidates memories into structured state: decisions, milestones, risks
  • Cryptographic Verification
    Merkle proofs + on-chain anchoring — independently verifiable
  • REST API
    Full backend control with per-project API keys
  • Semantic Search
    Fast semantic recall across all your memories
  • Multi-Agent Support
    Claude, Cursor and GPT share one project state with attribution

EXT features and specs

No features have been listed yet.

Analysis of ChainMemory

Overall verdict

  • I don't have verified information about ChainMemory (chainmemory.ai), so I can't confirm whether it's good or reliable. I don't want to fabricate details about a product I have no factual basis for—please verify through official sources, user reviews, and independent research before drawing conclusions.

Why this product is good

  • I lack verified data on this specific product's features, performance, or user feedback
  • No independent reviews or benchmarks are available to me for this service
  • I cannot confirm the legitimacy, pricing, or claims made by chainmemory.ai
  • Making up details would be misleading rather than helpful

Recommended for

  • Anyone considering this product should first check the official website for documentation and pricing
  • Look for third-party reviews, community discussions, or case studies before committing
  • Consider reaching out to the company directly for demos, references, or trial access
  • Consult recent tech news or comparison articles if this is a newer or niche tool

Analysis of EXT

Overall verdict

  • EXT (ext.store) is generally considered a reputable marketplace for browser extensions and digital tools, offering a curated selection with a focus on quality and user experience, though as with any platform, buyers should verify individual products and reviews before purchasing.

Why this product is good

  • Curated selection of browser extensions and digital tools that emphasizes quality
  • User-friendly interface that makes discovering and installing extensions straightforward
  • Often features reviews and ratings to help users make informed decisions
  • Focus on productivity and utility tools that add real value to browsing
  • Regular updates and support for listed extensions

Recommended for

  • Users looking to enhance their browser with productivity extensions
  • Developers seeking a platform to distribute their browser tools
  • People who want a curated alternative to official browser stores
  • Businesses wanting to equip teams with useful browsing utilities
  • Tech-savvy individuals interested in exploring new digital tools

ChainMemory videos

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EXT videos

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More videos:

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Category Popularity

0-100% (relative to ChainMemory and EXT)

ChainMemory

EXT

AI
100 100%
AI
0% 0
Developer Tools
65 65%
Developer Tools
35% 35
SDKs
0 0%
SDKs
100% 100
AI Memory
100 100%
AI Memory
0% 0

User comments

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What are some alternatives?

When comparing ChainMemory and EXT, you can also consider the following products

Mem0 - Your private, local memory layer for all AI tools

thirdweb - thirdweb is an ecosystem of SDKs, dev tools, and dashboards that help teams build and manage web3 apps. Deploy custom or pre-built contracts to ETH, MATIC, AVAX, & more.

Memori - Persistent memory from agent trace, not just conversation

BuildStore - Safe and trustworthy alternative app store for iOS

Agentmemory - Persistent memory for Claude Code, Codex & coding agents

MacMenuBar - A curated directory of 200+ Mac menu bar apps

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