eko

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.

News

• 2025-11: Eko 4.0 supports chat conversations & optimizes agent logic.
• 2025-09: Eko 3.0 introduces dependency-aware parallel agent execution.
• 2025-09: New pause, resume, and interrupt controls with task_snapshot workflow recovery.
• 2025-09: Monorepo tooling migrated to pnpm for consistent workspace management.

Upgrading to Eko 4.0

Follow these steps when moving an existing Eko 3.x project to 4.0:

1. Update dependencies with pnpm up @eko-ai/eko @eko-ai/eko-nodejs @eko-ai/eko-web @eko-ai/eko-extension.
2. Regenerate saved workflows or exported plans so they use the v3 schema and dependency graph format.
3. Clean and reinstall using pnpm (rm -rf node_modules && pnpm install), then rebuild any browser or desktop bundles.
4. Re-run automated demos and update documentation to reflect the new pause/interrupt APIs and parallel agent behavior.

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	✅	✅	❌	❌	❌
Task Parallel	✅	❌	❌	❌	❌
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

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