    servers/
        memory/
        crystal
  

CR

Crystal

Unverified Claim & verify → Memory

Self-curating memory your AI tools share: provenance, verified citations, and trust tiers.

Visit website ↗ Try Remote Server

Overview Installation

Overview

Crystal is a Model Context Protocol server that provides self-curating memory shared across your AI tools. It tracks provenance, verified citations, and trust tiers to help you maintain reliable, traceable information as you work with multiple AI assistants. Instead of manually copying information between applications, your AI tools can access Crystal's memory directly through standardized MCP calls.

Crystal runs as a remote hosted service at https://crystal-api-118881845105.us-east5.run.app/mcp with no authentication required and nothing to install locally. The latest release is v1.0.0. Visit https://crystal.erahq.ai for more information from the vendor.

Crystal appears in the Memory category on mcp.site and works with any MCP client including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, and Zed. If you maintain Crystal, claim this listing to verify ownership and keep the details current.

▸Hosted endpoint — Streamable HTTP · https://crystal-api-118881845105.us-east5.run.app/mcp

Installation

Settings → Connectors → Add custom connector
Name: Crystal
URL:  https://crystal-api-118881845105.us-east5.run.app/mcp

Related servers

PM

PLUR Memory

Memory

Persistent long-term memory graph shared across MCP clients.

          ★ 226
        Added 1 week ago
    →
  

KI

Kin

Memory

Personal relationship memory for assistants that remember people.

          ★ 45
        Added 3 days ago
    →
  

NoteMCP

Memory Remote

Give Claude and ChatGPT long-term memory. Save notes by text, voice or share sheet, and your AI finds and updates them in any future chat.

        Added today
    →
  

Mcp

Memory Remote

AI memory layer — one shared, persistent memory across every AI tool you connect.

        Added 1 month ago
    →
  

BO

Bourdon

Memory

Recognition-first cross-agent memory federation. One shared memory across all your agents.

        Added 1 month ago
    →
  

MC

Mcp

Memory Remote

Persistent memory for AI assistants. Save once; recall from Claude, ChatGPT, or any MCP client.

        Added 1 month ago
    →
  