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OpenMolt

OpenMolt is a programmatic AI Agent System for Node.js. Define agents, wire them to LLMs and external tools, and run autonomous multi-step workflows — all in TypeScript.

npm install openmolt

What is an agent?​

An agent is an autonomous loop. It receives a task, reasons about it with an LLM, calls tools, and repeats until it has a final answer. OpenMolt's loop is called the Maestro loop.

┌─────────────────────────────────────────┐
│                Maestro Loop             │
│                                         │
│  Input ──► LLM  ──► Commands            │
│              ▲          │               │
│              │          ▼               │
│           History ◄── Execute           │
│                     (tools, waits...)   │
│                          │              │
│                     finish ──► Output   │
└─────────────────────────────────────────┘

Key features​

FeatureDescription
Multi-provider LLMsOpenAI (GPT-4o, o1, o3), Anthropic (Claude), Google (Gemini)
30+ built-in integrationsGmail, Slack, Telegram, GitHub, Stripe, Airtable, fal.ai, S3 …
Structured outputValidate agent output against a Zod schema
MemoryLong-term and short-term memory stores with persistence callbacks
SchedulingInterval and daily cron-style schedules
Custom integrationsRegister your own HTTP or SDK-based tools
TypeScript-firstFull type inference on configs, schemas, and events

Quick look​

import OpenMolt from 'openmolt';
import { z } from 'zod';

const om = new OpenMolt({
  llmProviders: { openai: { apiKey: process.env.OPENAI_API_KEY } },
});

const agent = om.createAgent({
  name: 'Researcher',
  model: 'openai:gpt-4o',
  instructions: 'You are a helpful research assistant.',
  integrations: [
    {
      integration: 'httpRequest',
      credential: { type: 'custom', config: {} },
      scopes: 'all',
    },
  ],
  outputSchema: z.object({ summary: z.string(), sources: z.array(z.string()) }),
});

const result = await agent.run('Summarise the main use cases for WebAssembly.');
console.log(result.summary);

Next steps​