AI | Sam Altman’s World (Formerly WorldCoin) Partners with Coinbase to Verify Humans Behind AI Transactions

Sam Altman-backed identity project, World, has teamed up with Coinbase to launch a new system aimed at proving that real humans – not bots – are behind transactions carried out by AI agents.

The collaboration introduces a developer toolkit, known as AgentKit which allows AI systems to cryptographically verify that their actions are authorized by a unique, verified human identity. This is designed to address growing concerns around trust as autonomous AI agents increasingly transact, shop, and interact online.

AgentKit will allow users to delegate their World ID to AI agents to act on their behalf with zero-knowledge proofs so that platforms can verify that an agent is representing a real person without having to store or collect personal data.

The product works with x402, a protocol developed by Coinbase and Cloudflare that enables agentic payments by embedding stablecoin micropayments into the internet’s communication layer so AI Agents and software can pay each other without human intervention.

“Payments are the ‘how’ of agentic commerce, but identity is the ‘who,’” said Erik Reppel, head of engineering at Coinbase Developer Platform and founder of x402.

“This is a massive step toward a web where agents aren’t just seen as automated traffic, but as legitimate economic participants.”

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World, formerly known as WorldCoin, focuses on “proof-of-personhood” through its World ID system, which uses biometric verification to distinguish humans from AI. By integrating with Coinbase’s open protocol infrastructure, the project aims to embed this identity layer directly into onchain financial activity.

The move comes as agent-driven commerce is expected to scale rapidly, with estimates suggesting it could reach anywhere between $3 trillion to $5 trillion dollars in value by 2030. Ensuring that these AI-driven transactions are linked to real individuals is emerging as a critical challenge for the digital economy.

The need for this kind of identity is necessary to enable services that to need limit free trials or offer a fixed set of bookings day per human, for example. It can also limit resource usage that is automated or suspicious, such as website visits, to prevent abuse.

By combining identity verification with crypto rails, World and Coinbase are positioning themselves at the intersection of AI and blockchain—where proving “humanness” may become a foundational requirement for trust in automated systems.

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