Hedera Developer Highlights May 2025

This month, we’re launching two powerful new tools for developers: the Hedera Contract Builder and the Hedera AI Studio. The May technical community call dives into HIP-551, HIP PR-1081, and HIP PR-1056, with an overview of the new Contract Builder. You’ll also find a detailed look at HIP-991 for monetizing AI services, and new resources like an ERC-721 upgrade tutorial and JSON-RPC relay selection guide.
Updated: Deprecation of the Insecure Hedera Consensus Service (HCS) Mirror Node Endpoints

Hedera continues to enhance security by deprecating insecure HCS mirror node endpoints. An updated timeline has been released, detailing key dates for brownout periods and the final shutdown. Users should migrate promptly to secure endpoints to ensure uninterrupted service. Review the full updated schedule and migration details now.
Estimate Gas Dynamically: Best Practices for Smart Contract Development

Learn why hardcoded gas limits are fragile, how to use dynamic estimation with common EVM tools, practical tips like adding buffers and retry logic, and specific guidance for developers using both JSON-RPC and HAPI.
Local, Self-Hosted, or Third-Party? Selecting a JSON RPC Relay for Your Project

When developing smart contracts on Hedera, choosing the right JSON RPC relay setup significantly impacts your workflow, testing speed, and scalability. Should you use a Hedera Local Node for rapid isolated tests, run your own relay for maximum flexibility, or opt for a managed third-party provider to simplify infrastructure management? Each approach has unique strengths suited to different project stages and requirements—let’s explore how you can strategically select the best JSON RPC relay for your application.
How Hedera Ensures Quality in Releases of the Hiero Consensus Node

Hedera’s structured release process and multi-layered testing approach ensure that each code change is thoroughly vetted. New features to the Hiero Consensus Node codebase must pass through successive stages of validation before they are considered “production-ready.”
Introducing Hedera AI Studio

Introducing Hedera AI Studio: an open-source modular toolkit that simplifies the creation and deployment of verifiable AI agents on the Hedera network. By offering a suite of intuitive tools, developers and enterprises can build intelligent, transparent, and automated AI workflows with ease.
Introducing the Hedera Contract Builder

The Hedera Contract Builder is a powerful new tool for developers that makes it easier than ever to work with smart contracts on Hedera. It’s a tool for editing, compiling, deploying, verifying, and calling smart contracts on Hedera in seconds, all from your web-browser.
A New Era For Hedera

The Hedera ecosystem is accelerating. Across the network, contributors are creating the conditions for real-world adoption, decentralized innovation, and sustainable growth that spans industries and geographies. This is just the beginning. With the strength of an unmatched community, fresh leadership perspectives, and a clear path forward, the Hedera network is well-positioned to accelerate its role as the trust layer of the digital economy. The future is not only being imagined—it’s being built. And it’s being built on Hedera.
Hedera Developer Highlights April 2025

This month, Hedera has adopted Chainlink’s cross-chain interoperability standard (CCIP). Additionally, the latest technical community call introduced new feedback channels and provided insights into the HCS-10 architecture. For developers, a new tutorial guides you through advanced ERC-721 token management, and Jay also demonstrates how to monetize your AI agents using revenue-generating topic IDs on Hedera.
How Can We Model a Building in Web3? (Continued)

In this article, we’ll explore tokenized buildings in detail, including the factory contract that ties everything together. By the end, you’ll understand that a building isn’t one NFT at all; you will learn that it’s a pocket‑sized application that mints its own equity, keeps a tight cap‑table, and lets investors approve new air‑conditioning through a smartphone, as well as how the BuildingFactory stitches them together in one atomic deployment.