@mastra/memory

@mastra/memory

@mastra/memory gives Mastra agents persistent conversation history, semantic recall, working memory, and observational memory. Attach a Memory instance to an agent when it should retain context across messages and threads.

Installation

npm install @mastra/memory

Usage

Attach memory to an agent and pass a stable thread and resource ID when generating a response.

import { Agent } from '@mastra/core/agent';
import { Memory } from '@mastra/memory';

const agent = new Agent({
  id: 'support-agent',
  name: 'Support agent',
  instructions: 'Answer support questions using the conversation history.',
  model: 'openai/gpt-5.6-sol',
  memory: new Memory(),
});

const response = await agent.generate('What did we discuss last time?', {
  memory: { thread: 'conversation-123', resource: 'user-456' },
});

Documentation

• @mastra/memory documentation

Changelog

See the package changelog for version history and release notes.

Support

We have an open community Discord. Come and say hello and let us know if you have any questions or need any help getting things running.