npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2026 – Pkg Stats / Ryan Hefner

@molroo-io/sdk

v0.9.0

Published

Unified SDK for molroo emotion engine — persona, world, LLM integration

Readme

@molroo-io/sdk

Thin Client SDK for molroo emotion engine

Simplified API client with LLM integration for the molroo emotion engine.

Quick Start

import { Molroo } from '@molroo-io/sdk';
import { createOpenAI } from '@ai-sdk/openai';

const molroo = new Molroo({ apiKey: 'mk_live_...' });

const openai = createOpenAI({ apiKey: process.env.OPENAI_API_KEY! });

// Create persona from description
const sera = await molroo.createPersona(
  'A kind and curious barista named Sera who remembers customer names',
  { llm: openai }
);

// Chat
let history: Message[] = [];
const result = await sera.chat('Hello!', { history });
console.log(result.text);  // "Hello! Welcome to our cafe."
history = result.updatedHistory;  // Manage externally

Installation

npm install @molroo-io/sdk
npm install ai @ai-sdk/openai  # or @ai-sdk/anthropic, @ai-sdk/google-vertex

Features

  • Unified APIMolroo class for persona and world management
  • Vercel AI SDK Integration — Use any LLM provider (OpenAI, Anthropic, Google, etc.)
  • External History Management — Simple mode: manage conversation history yourself
  • Advanced Memory (Optional) — Implement MemoryAdapter for semantic search, reflections
  • World Simulation — Multi-agent environments with channels and interactions

Usage Modes

1. Simple Mode (External History)

const molroo = new Molroo({ apiKey: 'mk_...' });
const sera = await molroo.createPersona('...', { llm: openai });

let history = [];
const result = await sera.chat('Hello', { history });
history = result.updatedHistory;

2. Advanced Mode (MemoryAdapter)

class MyPostgresAdapter implements MemoryAdapter {
  async saveEpisode(episode: Episode): Promise<void> {
    // Save to PostgreSQL
  }
  
  async recall(query: RecallQuery): Promise<Episode[]> {
    // Query by filters
  }
  
  async semanticRecall(query: string): Promise<Episode[]> {
    // Vector similarity search
  }
}

const sera = await molroo.createPersona('...', {
  llm: openai,
  memory: new MyPostgresAdapter()
});

World Simulation

const world = await molroo.createWorld({ name: 'Cafe' });
const sera = await molroo.createPersona('Barista Sera', { llm: openai });
await world.addPersona({ personaConfigId: sera.id, config: {...} });

Migration from v0.5.x

Breaking Changes

  1. Unified create() method

    // Before
    await MolrooPersona.create({...}, {personality: {...}});
    await MolrooPersona.generate({...}, "description");
       
    // After
    await molroo.createPersona({personality: {...}}, {llm});
    await molroo.createPersona("description", {llm});
  2. External history management

    // Before
    await persona.chat("Hello");  // MemoryAdapter required
       
    // After
    let history = [];
    const result = await persona.chat("Hello", {history});
    history = result.updatedHistory;
  3. Vercel AI SDK directly

    // Before
    createVercelAIAdapter({provider: 'openai', ...})
       
    // After
    createOpenAI({...})  // Pass directly
  4. Removed adapter implementations

    • SQLite, Supabase, Pinecone adapters removed
    • Implement MemoryAdapter interface yourself
    • Or wait for API-hosted memory (coming soon)

API Reference

See API documentation for full reference.

License

MIT