Over the past couple of months, Hedera AI-Studio has been on a roll, delivering smart enhancements and developer-focused improvements to make it easier to build AI-powered applications on-chain. In July 2025, the team launched a re-architected Version 3 of the Hedera Agent Kit—a JavaScript SDK that simplifies the creation of AI agents capable of interacting with the Hedera network.
With its modular adapter and plugin architecture, the Agent Kit allows developers to quickly build agents that manage accounts, transfer HBAR, mint tokens, query mirror nodes, and much more. Designed for both AI and web2 developers, the SDK removes the need to write or audit smart contracts, offering a fast, secure, and cost-predictable way to integrate AI with Hedera services, and even leverage AI itself to develop with the full benefits of the Hedera network.
Version 3: New and Improved Architecture
This new version of the Agent Kit introduces an improved adapter architecture designed for compatibility with any AI framework, tooling, or functionality a developer wants to build. Just as importantly, it’s fully extensible, meaning contributors can create and build their own plugins to add new capabilities, making the kit far more flexible than ever before.
Previously, the Hedera Agent Kit only worked with OpenAI and Langchain. Version 3 allows developers to use more LLMs and AI Agent frameworks like Vercel AI SDK, ElizaOS, or MCP (Model Context Protocol). With the Hedera Agent Kit you can tap into the rich ecosystem of existing AI frameworks, and use the plugins to build applications with autonomous AI agents or AI-powered human-in-the-loop flows.
A developer can now, for example, create a plugin for a recommendation engine, which would allow an agent to make data-driven decisions, generate insights, or provide predictions while interacting directly on the Hedera network. This approach enables richer, more intelligent applications and demonstrates how easily contributors can extend the kit to build advanced functionality.
The Agent Kit’s scalable design also makes it simple to integrate other frameworks; if you are an Open Source Software (OSS) contributor and want to add support for a new AI Agent framework, check out an example adapter, and build one of your own.
Plugins and Contributing
The new agent kit creates a structure for using both Hedera and outside functionality by importing and choosing plugins – with just a few lines of code– and the tools within those plugins that you want to use in your application.
const hederaAgentToolkit = new HederaLangchainToolkit({
client,
configuration: {
tools: [
], // use an empty array if you want to load all tools from plugins
context: {
mode: AgentMode.AUTONOMOUS,
},
plugins: [coreHTSPlugin, coreTokenQueryPlugin, coreAccountPlugin, coreAccountQueryPlugin, coreConsensusPlugin, coreConsensusQueryPlugin, coreEVMPlugin, coreEVMQueryPlugin, coreTransactionsPlugin],
},
});
Hedera functionality is grouped into ‘core plugins’, where developers can choose what actions or services they want to enable in their application (as well as the specific tools from those plugins). For Hedera services, developers can use any and all of the following (with more to come):
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Core Account Plugin: Tools for Hedera Account Service operations
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Core Account Query Plugin: Tools for querying Hedera Account Service related data
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Core Consensus Plugin: Tools for Hedera Consensus Service (HCS) operations
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Core Consensus Query Plugin: Tools for querying Hedera Consensus Service (HCS) related data
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Core Token Plugin: Tools for Hedera Token Service operations
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Core Token Query Plugin: Tools for querying Hedera Token Service related data
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Core EVM Plugin: Tools for interacting with EVM smart contracts on Hedera (ERC-20 and ERC-721)
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Core EVM Query Plugin: Tools for querying smart contract-related data on Hedera
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Core Transactions Plugin: Tools for handling Hedera transaction–related operations
With the simplified code structure of V3, it’s also never been easier for anyone to create their own plugin for the Agent Kit, which can be implemented and used by any developer in the same way as the core Hedera plugins.
The adapter architecture means that plugin creators can create one plugin for Hedera Agent Kit, and instantly integrate with Langchain, the Vercel AI SDK, MCP, and ElizaOS, without having to build individual plugins for each framework – the built-in adapters in the agent kit takes care of it all.
The agent kit docs have instructions for how to create your own plugin, and you can see the example for how you would import and use third party plugins in our collection of examples.
ElizaOS Plugin for V3
ElizaOS is an open-source framework for building AI Agents that can seamlessly integrate web3 capabilities. With version 3 of our agent kit, there is also a new and improved version of the hedera-plugin for ElizaOS. With this plugin, ElizaOS developer can easily build an agent that can access all the plugins and tools from the Hedera AI Agent Kit.
Projects that build a plugin for the Hedera Agent Kit can also use that plugin with Eliza, simply by adding it to the list of plugins built into our hedera-eliza plugin.
Create-Hedera-Agent CLI tool
The create-hedera-agent CLI tool is a newly added feature to the agent kit, which was created alongside the agent kit to make it possible for anyone to build an AI application. Simply install the npm package with
npm create hedera-agent@latest
and you will have an agent application spun up in seconds.
Running this CLI command will guide you through the configuration for a full stack Next.js application: set a project name, choose your agent mode, select your LLM provider, add private keys or Wallet Connect details (depending on the mode), and you’re ready to go.
Once the configuration is complete, the app is generated automatically. From there, just switch into the app directory, run it locally, and you can start using natural language with your agent to complete transactions on the Hedera Network — getting from zero to a working AI-powered agent in minutes.
Coming Soon
The initial release of the Agent Kit was designed with a foundational set of Hedera tools and services — everything needed to build an MVP — and we’ve continued to expand its features and functionality ever since. The first release of the V3 hedera-agent-kit included a core suite of Hedera transaction tools and services, which will remain a cornerstone of the kit moving forward.
We’re actively working with the ecosystem to build and register new third-party plugins that extend the Agent Kit’s capabilities. We’re excited to announce the first published third-party plugin from our community: the memejob plugin from Builder Labs. With it, you can easily build a Hedera agent that creates, buys, and sells memecoins on memejob.fun — a perfect example of how fast the Agent Kit can grow with bold, creative functionality.
On the horizon, we’re thrilled to share that a SaucerSwap plugin is in development, which will bring decentralized exchange functionality directly into your AI agents. This integration will enable developers to build agents that can seamlessly interact with DeFi protocols, swap tokens, and manage liquidity pools through natural language commands.
We’re also expanding language support beyond JavaScript. A Python version of the Hedera Agent Kit is currently in the works, opening the door for Python developers and the broader AI/ML community to build sophisticated agents on Hedera. This will make the kit accessible to an even wider range of developers and use cases, from data science applications to machine learning workflows.
And this is just the beginning — what started as a foundation for MVPs is quickly becoming the launchpad for the next generation of intelligent, AI-powered applications on Hedera.
Learn More
There’s lots to love with the updated Hedera Agent Kit
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Explore the hedera-agent-kit repository, now located in the /hashgraph GitHub organization and published on npm.
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Try the hedera-plugin for ElizaOS, which integrates core functionality (and third-party agent kit plugins!) into an easy to use plugin for ElizaOS
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Share your feedback — whether you’re a beginner or an experienced Hedera developer, we’d love to hear from you.
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Learn how to create and publish your own plugin, and see an example LangChain adapter.
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Get started quickly with the Quickstart, Developer Examples, and the create-hedera-agent CLI tool.
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Check out the first third-party plugin: the Memejob plugin from Builder Labs which lets agents create, buy, and sell memecoins on memejob.fun.
