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Fast ephemeral storage, ideal for testing. Sessions are lost on restart. In-memory storage keeps sessions in RAM. Best for:
  • Unit testing
  • Integration testing
  • Quick prototyping
  • Temporary sessions

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Configuration

# Explicit selection (optional)
MCP_TS_STORAGE_TYPE=memory

# No additional configuration needed

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Usage

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Option 1: Default Usage

The global sessions proxy uses the In-Memory backend by default if no other storage environment variables are configured. 
import { sessions } from '@mcp-ts/sdk/server';

await sessions.create({
  sessionId: 'test-123',
  userId: 'test-user',
  serverUrl: 'https://test.example.com',
  callbackUrl: 'https://test.com/callback',
  transportType: 'sse',
  status: 'active',
  createdAt: Date.now(),
});

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Option 2: Manual Instantiation

import { MemoryStorageBackend } from '@mcp-ts/sdk/server';

const memoryBackend = new MemoryStorageBackend();

await memoryBackend.create({
  sessionId: 'test-123',
  userId: 'test-user',
  serverUrl: 'https://test.example.com',
  callbackUrl: 'https://test.com/callback',
  transportType: 'sse',
  status: 'active',
  createdAt: Date.now(),
});