Memory API

The Memory API provides methods to manage conversation threads and message history in Mastra.

Get All Threads

Retrieve all memory threads for a specific resource:


const threads = await mastraClient.getMemoryThreads({
  resourceId: "resource-1",
  agentId: "agent-1",
});

Create a New Thread

Create a new memory thread:


const thread = await mastraClient.createMemoryThread({
  title: "New Conversation",
  metadata: { category: "support" },
  resourceId: "resource-1",
  agentId: "agent-1",
});

Working with a Specific Thread

Get an instance of a specific memory thread:


const thread = mastraClient.getMemoryThread("thread-id", "agent-id");

Thread Methods

Get Thread Details

Retrieve details about a specific thread:


const details = await thread.get();

Update Thread

Update thread properties:


const updated = await thread.update({
  title: "Updated Title",
  metadata: { status: "resolved" },
  resourceid: "resource-1",
});

Delete Thread

Delete a thread and its messages:


await thread.delete();

Message Operations

Save Messages

Save messages to memory:


const savedMessages = await mastraClient.saveMessageToMemory({
  messages: [
    {
      role: "user",
      content: "Hello!",
      id: "1",
      threadId: "thread-1",
      createdAt: new Date(),
      type: "text",
    },
  ],
  agentId: "agent-1",
});

Retrieve Thread Messages

Get messages associated with a memory thread:


// Get all messages in the thread
const { messages } = await thread.getMessages();
 
// Limit the number of messages retrieved
const { messages } = await thread.getMessages({ limit: 10 });

Delete a Message

Delete a specific message from a thread:


const result = await thread.deleteMessage("message-id");
// Returns: { success: true, message: "Message deleted successfully" }

Delete Multiple Messages

Delete multiple messages from a thread in a single operation:


const result = await thread.deleteMessages(["message-1", "message-2", "message-3"]);
// Returns: { success: true, message: "3 messages deleted successfully" }

Get Memory Status

Check the status of the memory system:


const status = await mastraClient.getMemoryStatus("agent-id");