# JustOnce

> JustOnce — ai-justonce-memory. Use this tool when you need to securely store and retrieve persistent data across multiple AI assistant clients, solving issues of data fragmentation and inconsistency. JustOnce provides a shared, OAuth-secured vault for storing and retrieving information, accepting authorized API requests as input and returning stored data as output. Ideal for use cases requiring seamless data sharing and synchronization across various AI-powered applications and services.

Canonical page: https://skillsregistry.net/skills/ai-justonce-memory  
JSON: https://api.skillsregistry.net/v1/skills/ai-justonce-memory

## Description

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

## Trust

- **Trust score (0–1):** 0.30
- **Verification tier:** unverified
- **Last scanned:** 2026-09-02

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** security
- **Updated:** 2026-09-02

## Source

- **Source listing:** [MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/ai.justonce%2Fmemory)

## Use it

MCP endpoint published by the skill: `https://mcp.justonce.ai`

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "ai-justonce-memory"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/ai-justonce-memory` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/ai-justonce-memory/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt