Tokenized Agentic Commerce: x402 — the Protocol
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Dec 11, 2025 In this engaging discussion, Erik Reppel, Head of Engineering at Coinbase Developer Platform and creator of the X402 standard, dives into the intriguing history of the HTTP 402 status code and its connection to modern payments. He elaborates on the convergence of blockchain, AI, and internet-native payments, and details the innovative X402 standard's construction and applications. Topics include the role of facilitators, compliance through KYT for stablecoin transactions, and exciting early use cases like AI agents purchasing API access. Tune in for a glimpse into the future of payments!
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HTTP 402 Was Waiting For Its Moment
- HTTP 402 was reserved as a native web payment signal long before the tech existed to implement it.
- Erik Reppel argues modern blockchains and AI make it finally feasible to activate that reserved status code.
AI Disrupts Web Advertising Models
- AI agents change how users access content, reducing direct visits to publishers.
- Erik Reppel says this disrupts ad models and creates a need for native internet payments.
Start Accepting X402 Quickly
- Accepting X402 only requires a crypto settlement destination like a wallet or Coinbase account.
- Erik Reppel notes many companies can enable X402 payments in under an hour.