Request for World Builders

World Build 3 is launching and this is our most exciting iteration yet. AI tools now make it possible for far more people than ever to build useful and valuable apps in the World ecosystem. And with AI’s rapid adoption and improvements, the need for Proof of Human is no longer theoretical, it’s now. 

We live in the time when it’s possible to build anything and not everything has been built yet. We want to plant seeds in the minds of the brightest builders on what we think the most important use cases are.

What the World ecosystem offers you

The bedrock of the World ecosystem is “Proof of Human”, an open protocol enabling anyone to verify they are a unique human without needing to reveal anything about which human they are. Today, there are nearly 18 million people who have Proof of Human, and growing orb coverage makes it accessible to millions.

To use Proof of Human, users download World App, which has more than 38 million installs. When you build in the World ecosystem, your app gets distributed to those 38 million people through “Mini Apps”.

World Network is not just identity, it’s also finance. Proof of Human verifications happen on World Chain, which means everyone who has Proof of Human also has a wallet. Enabling you to build applications that move value through tokens. With this background, here are the areas we believe builders will win in.

What to build

Human Verified Agents

A meta category and primary use case for Proof of Human is verifying a given agent is associated with a unique human. From there, a huge design space is unlocked. You can use AgentKit to do this.

In an agentic future, where agents can rapidly drive up inference costs and infinitely span an ecosystem, the ability to signify that an agent acting on your behalf is instructed by a human is crucial. The simplest application is gating or discounting the price of a service for agents of verified humans.

Scaling Human Curation

Verified human agents can bring a human-curated internet back. One example is Newsworthy, which acts like Hacker News or Reddit with a vote-based curation. All voting is done by agents. The unique aspect is that each agent is connected to a single verified human, and each agent's voting reflects the preferences of the person. This model can be applied broadly to many applications needing human curation.

Stablecoins & Currency Exchanges

More people hold non-USD stablecoins bon World Chain than any other chain (see here). World Chain and World App are uniquely positioned to be the dominant consumer forex venue. We are looking for an ambitious and talented team that wants to build the native dex on World Chain facilitating this.

Human Markets with Uniswap

Uniswap Hooks enable custom logic around exchanging tokens. Combining this with Proof of Human means you can build things like token launchpads where only verified humans can buy early or foreign exchange markets where verified humans get rebates for swapping.

Human / Agent Coordination with XMTP
XMTP's potential is as a coordination layer for verified humans and their agents. Instaclaw has already integrated World Chat as a messaging layer for their human-verified agents. We want to see more experimentation on using private chat as an interface with agents.

Value Distribution & Customer Acquisition

One of the core use cases for proof of human technology is distributing value directly to verified human users, whether that be DeFi incentives, discount codes, memecoins, AI usage or something else.

Framed from the consumer perspective, this is value distribution. From the business perspective, it's an efficient and fraud-resistant way to grow your customer base. Builders are already showing the potential: ORO has become one of the most popular Mini Apps by dropping one token to each verified human every day; Credit is a pioneering human-verified credit system. We believe there is an opportunity to greatly expand this category.

How to build

IDKit

IDKit is how you embed Proof of Human into your product. Proofs are zero-knowledge and unlinkable across apps, so your users can verify their World ID without revealing any information about themselves. To get started, you need to: install the SDK, register the app in the Developer Portal, generate a backend signature to prevent forgery, collect the proof from the user, and verify it server-side. Full integration guide is here.

MiniKit 2.0

MiniKit 2.0 enables you to deploy your app inside the World App and tap into our distribution. You can load docs.world.org/llms-full.txt into your AI coding tool for full MiniKit context. Full docs here.

AgentKit

AgentKit lets you register an agent wallet against a verified World ID, then use that signal on your side to grant preferred access or offer discounts to human-backed agents. It accepts payments on both World Chain and Base using x402. Full docs here.

Apply to World Build today

The hackathon starts on April 23rd and is open to builders globally. The best 5 teams will be accepted into our multi-month incubator program, including fully funded trips to Korea to build alongside the Tools for Humanity tech team, and to SF to pitch the top VCs in Silicon Valley.

APPLY

If you want to learn more about World Ecosystem and World Build, join our upcoming events:

What to Build With World ID, X Space | April 10th @12pm ET | RSVP

April 17th: World host Lift Off, an update on the latest advances from World. More info here.

April 23rd: Deadline for applications. Launch event online and in person in Seoul and New York.