AI Memory (In-Mem)

Stores AI conversation memories in volatile memory. Fast but data is lost on Node-RED restart.

Inputs

payload object | string

Data to store or search query

topic string

Memory operation: "store", "search", "count", or empty for get-all

Outputs

payload object

Operation result (varies by topic)

aimemory object

Memory context: {context: [...], maxItems}

Configuration

Max Items number

Maximum memories to store. Oldest removed when exceeded. Default: 1000

Memory Operations

store (topic: "store")

{
  "topic": "store",
  "payload": {
    "content": "Memory content",
    "type": "optional type",
    "metadata": { "any": "data" }
  }
}

Output: {stored: true, memory: {...}}

search (topic: "search")

{
  "topic": "search",
  "payload": "search term"
}

Output: {results: [...], count: n}

count (topic: "count")

Output: {count: n}

get all (no topic)

Output: {memories: [...]}

Details

⚠️ Volatile Storage: All memories are lost when Node-RED restarts. Use File Memory for persistence.

When to Use

• Session-only conversation context
• High-performance scenarios
• Development/testing
• Temporary caching

Best Practices

• Set appropriate maxItems to prevent memory bloat
• Use File Memory if persistence is needed
• Clear memories periodically for long-running sessions