KODE SDK

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Event-driven, long-running AI Agent framework with enterprise-grade persistence and multi-agent collaboration.

Features

• Event-Driven Architecture - Three-channel system (Progress/Control/Monitor) for clean separation of concerns
• Long-Running & Resumable - Seven-stage checkpoints with Safe-Fork-Point for crash recovery
• Multi-Agent Collaboration - AgentPool, Room messaging, and task delegation
• Enterprise Persistence - SQLite/PostgreSQL support with unified WAL
• Extensible Ecosystem - MCP tools, custom Providers, Skills system

Quick Start

One-liner setup (install dependencies and build):

./quickstart.sh

Or install as a dependency:

npm install @shareai-lab/kode-sdk

Set environment variables:

Linux / macOS

export ANTHROPIC_API_KEY=sk-...
export ANTHROPIC_MODEL_ID=claude-sonnet-4-20250514  # optional, default: claude-sonnet-4-20250514
export ANTHROPIC_BASE_URL=https://api.anthropic.com  # optional, default: https://api.anthropic.com

Windows (PowerShell)

$env:ANTHROPIC_API_KEY="sk-..."
$env:ANTHROPIC_MODEL_ID="claude-sonnet-4-20250514"  # optional, default: claude-sonnet-4-20250514
$env:ANTHROPIC_BASE_URL="https://api.anthropic.com"  # optional, default: https://api.anthropic.com

Minimal example:

import { Agent, AnthropicProvider, JSONStore } from '@shareai-lab/kode-sdk';

const provider = new AnthropicProvider(
  process.env.ANTHROPIC_API_KEY!,
  process.env.ANTHROPIC_MODEL_ID
);

const agent = await Agent.create({
  provider,
  store: new JSONStore('./.kode'),
  systemPrompt: 'You are a helpful assistant.'
});

// Subscribe to progress events
for await (const envelope of agent.subscribe(['progress'])) {
  if (envelope.event.type === 'text_chunk') {
    process.stdout.write(envelope.event.delta);
  }
  if (envelope.event.type === 'done') break;
}

await agent.send('Hello!');

Run examples:

npm run example:getting-started    # Minimal chat
npm run example:agent-inbox        # Event-driven inbox
npm run example:approval           # Tool approval workflow
npm run example:room               # Multi-agent collaboration

Architecture for Scale

For production deployments serving many users, we recommend the Worker Microservice Pattern:

                        +------------------+
                        |    Frontend      |  Next.js / SvelteKit (Vercel OK)
                        +--------+---------+
                                 |
                        +--------v---------+
                        |   API Gateway    |  Auth, routing, queue push
                        +--------+---------+
                                 |
                        +--------v---------+
                        |  Message Queue   |  Redis / SQS / NATS
                        +--------+---------+
                                 |
            +--------------------+--------------------+
            |                    |                    |
   +--------v-------+   +--------v-------+   +--------v-------+
   |   Worker 1     |   |   Worker 2     |   |   Worker N     |
   | (KODE SDK)     |   | (KODE SDK)     |   | (KODE SDK)     |
   | Long-running   |   | Long-running   |   | Long-running   |
   +--------+-------+   +--------+-------+   +--------+-------+
            |                    |                    |
            +--------------------+--------------------+
                                 |
                        +--------v---------+
                        | Distributed Store|  PostgreSQL / Redis
                        +------------------+

Key Principles:

1. API layer is stateless - Can run on serverless
2. Workers are stateful - Run KODE SDK, need long-running processes
3. Store is shared - Single source of truth for agent state
4. Queue decouples - Request handling from agent execution

See docs/en/guides/architecture.md for detailed deployment guides.

Supported Providers

Provider	Streaming	Tools	Reasoning	Files
Anthropic	✅	✅	✅ Extended Thinking	✅
OpenAI	✅	✅	✅	✅
Gemini	✅	✅	✅	✅

Note: OpenAI-compatible services (DeepSeek, GLM, Qwen, Minimax, OpenRouter, etc.) can be used via OpenAIProvider with custom baseURL configuration. See Providers Guide for details.

Documentation

Section	Description
Getting Started
Installation	Setup and configuration
Quickstart	Build your first Agent
Concepts	Core concepts explained
Guides
Events	Three-channel event system
Tools	Built-in tools & custom tools
Providers	Model provider configuration
Database	SQLite/PostgreSQL persistence
Resume & Fork	Crash recovery & branching
Reference
API Reference	Complete API documentation
Examples	All examples explained

License

MIT