Eko - Build Production-ready Agentic Workflow with Natural Language

Eko (pronounced like ‘echo’) is a production-ready JavaScript framework that enables developers to create reliable agents, from simple commands to complex workflows. It provides a unified interface for running agents in both computer and browser environments.

Framework Comparison

Feature	Eko	Langchain	Browser-use	Dify.ai	Coze
Supported Platform	All platform	Server side	Browser	Web	Web
One sentence to multi-step workflow	✅	❌	✅	❌	❌
Intervenability	✅	✅	❌	❌	❌
Development Efficiency	High	Low	Middle	Middle	Low
Task Complexity	High	High	Low	Middle	Middle
Open-source	✅	✅	✅	✅	❌
Access to private web resources	✅	❌	❌	❌	❌

Features

• Pure JavaScript: Built for browsers and Node.js.🚀
• Multi-Agent: Unleash power with multiple Agents in one task.📈
• Agent/Tool Flexibility: Customize new Agents and Tools in just one line.🎉
• Native MCP: Connects seamlessly with Awesome MCP Servers.🔗
• Dynamic LLM: Balance speed and performance with flexible model choices.⚙️
• Human-in-the-loop: Intervene when it matters most.🤝
• Stream Planning: Dynamic rendering made easy.🎨
• Loop & Listener Tasks: Automate any repetitive task.🤖
• Observable Chain: Coming soon
• Native A2A: Coming soon

Quickstart

Note: Please refer to the Eko Quickstart guide guide for full instructions on how to run it.

Security Warning

DO NOT use API Keys in browser/frontend code!

This will expose your credentials and may lead to unauthorized usage.

Best Practices: Configure backend API proxy request through baseURL and request headers.

Please refer to the link: https://eko.fellou.ai/docs/getting-started/configuration#web-environment

const llms: LLMs = {
  default: {
    provider: "anthropic",
    model: "claude-sonnet-4-20250514",
    apiKey: "your-api-key"
  },
  openai: {
    provider: "openai",
    model: "gpt-4.1",
    apiKey: "your-api-key"
  }
};

let agents: Agent[] = [new BrowserAgent(), new FileAgent()];
let eko = new Eko({ llms, agents });
let result = await eko.run("Search for the latest news about Musk, summarize and save to the desktop as Musk.md");

$ pnpm install @eko-ai/eko

Use Cases

• Browser automation and web scraping
• System file and process management
• Workflow automation
• Data processing and organization
• GUI automation
• Multi-step task orchestration

Documentation

Visit our documentation site for:

• Getting started guide
• API reference
• Usage examples
• Best practices
• Configuration options

Development Environments

Eko can be used in multiple environments:

• Browser Extension
• Web Applications
• Node.js Applications

Community and Support

• Report issues on GitHub Issues
• Join our slack community discussions
• Join our Discard:
• Contribute tools and improvements
• Share your use cases and feedback

License

Eko is released under the MIT License. See the LICENSE file for details.