JustOnce

Persistent memory for AI assistants — one shared, OAuth-secured vault for every MCP client.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Remote HTTP

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "justonce": {
      "url": "https://justonce.ai"
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

JustOnce is a 🧠 Knowledge & Memory MCP server listed on AllMCPs. Persistent memory for AI assistants — one shared, OAuth-secured vault for every MCP client.

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Frequently Asked Questions about JustOnce

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "justonce": { "command": "npx", "args": ["-y", "JustOnce"] } }

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Technical Specs & Signals

CategoryKnowledge & Memory

30Quality signal: Emerging · 30/100How this signal is calculated ▾

Server availability13/25

Verified ownership0/20

Documentation & tools16/30

Adoption & activity1/15

Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

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More in 🧠 Knowledge & Memory →Best MCP servers for Memory & Knowledge →Alternatives to JustOnce →Install in Claude Desktop Install in Cursor Install in VS Code