Cryptocurrency exchange OKX has introduced an innovative open standard specifically designed for AI agent payments, known as the Agent Payments Protocol (APP). This new protocol aims to enhance the payment processes between AI entities, expanding functionality beyond mere transactions to encompass a comprehensive business cycle.
According to a report by The Block, APP echoes principles from previously established protocols, including the x402, incubated by Coinbase, and the Machine Payments Protocol proposed by Stripe. However, the APP seeks to fill a void identified in existing solutions by managing not just payments, but also critical activities such as quoting, negotiation, escrow, usage metering, settlement, and dispute resolution.
Designed for interoperability, APP operates on various blockchain networks, including popular platforms like Solana and Ethereum. It features a payments software development kit (SDK) that accommodates one-time payments, batch payments, and usage-based payments, all utilizing the OKX X Layer blockchain. Notably, gas fees are either nonexistent or minimal, enhancing its appeal for frequent transactions.
The protocol also integrates the OKX Agentic Wallet, a self-custody wallet fortified with Trusted Execution Environment (TEE) security technology, which facilitates operations across more than 20 blockchain networks. This feature ensures a secure environment for the management of digital assets while providing an efficient escrow service that ensures funds are released only upon the actual delivery of goods or services. Additionally, it includes mechanisms for dispute resolution, safeguarding users from potential conflicts.
Communication between AI agents is facilitated through established internet protocols, such as HTTP and the XMTP protocol, along with integration with messaging platforms like Telegram, enhancing real-time interaction among agents and users.
Star Xu, CEO of OKX, emphasized that APP was co-developed through collaboration with partners spanning cloud computing, decentralized finance, and artificial intelligence, grounded in extensive experience and research in on-chain infrastructure. “It is a key step in turning the agent economy into reality,” Xu stated, highlighting the protocol’s potential to revolutionize the way AI agents conduct transactions and interact in a digital economy.


