🃏 HyperStack — OpenClaw Plugin

Persistent cloud memory with auto-capture and auto-recall. Zero LLM cost.

Your OpenClaw agent forgets everything between sessions. HyperStack fixes that — automatically.

Install (30 seconds)

openclaw plugins install @hyperstack/openclaw-hyperstack

Get a free API key at cascadeai.dev (50 cards free).

Configure

Add to your ~/.openclaw/openclaw.json:

{
  "plugins": {
    "entries": {
      "openclaw-hyperstack": {
        "enabled": true,
        "config": {
          "apiKey": "${HYPERSTACK_API_KEY}",
          "workspace": "default",
          "autoRecall": true,
          "autoCapture": true,
          "maxRecallCards": 3
        }
      }
    }
  }
}

Or set the environment variable:

export HYPERSTACK_API_KEY=hs_your_key_here

Restart OpenClaw after configuring.

What It Does

Auto-Recall (before every turn)

Before your agent responds, HyperStack searches memory for context relevant to the user's message and injects it. No manual /search needed.

Auto-Capture (after every turn)

After every exchange, HyperStack extracts structured facts (preferences, decisions, people, tech stacks) and stores them as cards. No LLM needed — uses pattern matching (free, instant).

Manual Tools

The agent also gets explicit tools for fine-grained control:

| Tool | What it does | |------|-------------| | hyperstack_search | Search memory by keywords | | hyperstack_store | Store a specific fact as a card | | hyperstack_delete | Remove outdated info | | hyperstack_list | List all cards |

How It Compares

| | HyperStack | Mem0 | Supermemory | |--|------------|------|-------------| | Auto-recall | ✅ | ✅ | ✅ | | Auto-capture | ✅ | ✅ | ✅ | | LLM cost per op | $0 | ~$0.002 | ~$0.002 | | Semantic search | ✅ (hybrid) | ✅ | ✅ | | Team sharing | ✅ (Pro) | ❌ | ❌ | | Multi-platform | ✅ (MCP, SDK, REST) | OpenClaw only | OpenClaw only | | Free tier | 50 cards | 10K memories | Requires Pro | | Data safety | Explicit PII rules | None | None |

Data Safety

HyperStack never stores passwords, API keys, secrets, PII, or credentials. The auto-capture engine redacts sensitive patterns before storage. See the full data safety policy in the SKILL.md.

Pricing

• Free: 50 cards, 1 workspace, unlimited searches
• Pro ($15/mo): Unlimited cards, team sharing, version history, analytics

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