Skip to main content

Mastra.listMemory()

The .listMemory() method returns all memory instances registered with the Mastra instance.

Usage example
Direct link to Usage example

const memoryInstances = mastra.listMemory();

for (const [key, memory] of Object.entries(memoryInstances)) {
  console.log(`Memory "${key}": ${memory.id}`);
}

Parameters
Direct link to Parameters

This method takes no parameters.

Returns
Direct link to Returns

memory:

Record<string, MastraMemory>
An object containing all registered memory instances, keyed by their registry keys.

Example: Checking Registered Memory
Direct link to Example: Checking Registered Memory

import { Mastra } from "@mastra/core";
import { Memory } from "@mastra/memory";
import { LibSQLStore } from "@mastra/libsql";

const conversationMemory = new Memory({
  id: "conversation-memory",
  storage: new LibSQLStore({ url: ":memory:" }),
});

const analyticsMemory = new Memory({
  id: "analytics-memory",
  storage: new LibSQLStore({ url: ":memory:" }),
});

const mastra = new Mastra({
  memory: {
    conversationMemory,
    analyticsMemory,
  },
});

// List all registered memory instances
const allMemory = mastra.listMemory();
console.log(Object.keys(allMemory)); // ["conversationMemory", "analyticsMemory"]

On this page