# Build CRE workflows using Chainlink Privacy Capabilities I Andrej Rakic, Frank Kong

- Channel: [ETHGlobal](https://streameth.org/ethglobal)
- Date: 2026-05-09
- Duration: 16:24
- Topics: Chainlink, CRE, Chainlink Runtime Environment, privacy, confidential compute, smart contracts, oracle, decentralized oracle network, workflows, TypeScript, Go, WebAssembly, triggers, capabilities, CCIP, confidential HTTP, enclave, secrets, API keys, private token transfer, ERC20, shielded address, vault, ACE, access control, compliance, blockchain, hackathon, AI agents, agent skills, MCP server, Web3, offchain, onchain, DeFi, bounties, developer tools, Chainlink Labs
- Watch: https://streameth.org/watch/yt-7u6VFw9cdug
- YouTube: https://www.youtube.com/watch?v=7u6VFw9cdug

## Description

In this workshop, Andrej Rakic and Frank Kong, developer relation engineers from Chainlink Labs, introduce the Chainlink Runtime Environment (CRE) and Chainlink's privacy capabilities. Andrej explains CRE as an orchestration layer that connects the real world with smart contracts on any chain through off-chain workflows written in TypeScript or Go, compiled to WebAssembly and run across Chainlink's decentralized oracle network. He covers the three core concepts: workflows, triggers, and capabilities.

Frank then walks through Chainlink's two privacy features available for the hackathon. The first is Confidential HTTP requests, which use enclaves to securely store and decrypt secrets like API keys so they remain hidden from node operators. The second is Compliant Private Token Transfer, which allows users to transfer ERC20 tokens through a vault using shielded addresses, with an Access Control Engine (ACE) for setting compliance rules on transfers. The session also covers hackathon bounties and Chainlink's AI agent skills for faster development.

00:00 Introduction
00:47 Speaker Introductions
01:23 Hackathon Bounties Overview
03:34 Chainlink Agent Skills and MCP Server
05:41 What Is Chainlink Runtime Environment (CRE)
06:35 CRE Core Concepts: Workflows
07:57 Hello World Workflow Example
08:20 CRE Core Concepts: Triggers
09:01 CRE Core Concepts: Capabilities
09:27 Chainlink Privacy Features Overview
10:31 Confidential HTTP Requests and Enclaves
11:57 Compliant Private Token Transfer
12:39 Access Control Engine (ACE)
13:49 Q&A

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _  

*ETHGlobal Cannes 2026*
This workshop is specifically for ETHGlobal Cannes 2026, a 3-day hackathon held April 3-5 at the Palace of Festivals and Congresses of Cannes, bringing together the most skilled web3 developers, designers and product builders from all around the globe for a weekend-long adventure to advance the Ethereum ecosystem! Watch the full ETHGlobal Cannes 2026 playlist here: https://www.youtube.com/playlist?list=PLXzKMXK2aHh5YrcvSj6KSTztLMy58d7d4

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _  

✅ *Follow ETHGlobal*
X: https://x.com/ETHGlobal​
Website: https://ethglobal.com
YouTube: https://www.youtube.com/c/ETHGlobal 

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _  

_Are you interested in Ethereum development and entrepreneurship?_
👉 Sign up for the next ETHGlobal event: https://ethglobal.com/events
🎁 Get exclusive access and perks with ETHGlobal Plus! https://ethglobal.com/plus
📣 Want us to throw an event in your city? Tell us where! https://ethglobal.com/city

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _