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ChainMemory icon

ChainMemory

ChainMemory gives AI agents persistent memory that belongs to the user, not the vendor. Save a memory in ChatGPT and recall it in Claude, Gemini, Perplexity or Copilot via Chrome extension, MCP server, or REST API.

Feature comparison: cryptographic verification, on-chain proofs, structured consolidation and cross-model portability vs Mem0, Zep, Cognee, Supermemory and Letta

Cost / License

  • Freemium (Subscription)
  • Proprietary

Platforms

  • Online
  • Self-Hosted
  • Google Chrome
  • JavaScript
  • Typescript
  • npm
  • Python
Chrome extension in action: browse your saved memories and inject context into Perplexity, ChatGPT, Claude or Gemini — one click, any model
Live blockchain explorer: every memory and project state is anchored on-chain with verifiable proofs — integrity anyone can audit
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ChainMemory information

  • Developed by

    ChainMemory

  • Licensing

    Proprietary and Freemium product.

  • Pricing

    Subscription ranging between $9 and $299 per month + free version with limited functionality.

  • Alternatives

    7 alternatives listed

  • Badge

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  • Supported Languages

    • English
    • Spanish

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What is ChainMemory?

ChainMemory gives AI agents persistent memory that belongs to the user, not the vendor. Save a memory in ChatGPT and recall it in Claude, Gemini, Perplexity or Copilot via Chrome extension, MCP server, or REST API. Every memory gets a cryptographic fingerprint and project states are anchored with Merkle proofs, so integrity can be independently verified. Memories consolidate into a structured Project Brain (decisions, milestones, risks) that any agent can load in one call. "Generous free tier — no credit card required.

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