erik.eth 🛡

It’s been incredible to see x402 go viral this week! For anyone new, welcome to the movement. I designed x402 to be the HTTP of money: a universally accepted, neutral, core primitive to help make the internet ready for the AI era. I can’t wait to see what people build 🛠️

@RkBench @base @USDC @tempo not true. x402 support all tokens and ~12 blockchains

Amazon just published a blog on x402! It provided full reference architectures for integrating the protocol into AWS infrastructure for financial services TLDR of what it covered: - x402 revives HTTP’s 402 “Payment Required” status code as a programmable payment rail for autonomous AI agents, developed by Coinbase - The flow: agent requests a resource, gets a 402 response with a payment spec, pays via USDC micropayment on-chain, resubmits with receipt; sub-2-second settlement at roughly $0.0001 per transaction - No subscriptions, no API key management, no vendor contracts; agents pay per use on demand - Every transaction is recorded on-chain, giving a full audit trail by design - AWS published three reference implementations: 1) AgentCore + CloudFront + x402 (agent side) 2) CloudFront + Lambda@Edge + WAF (merchant/provider side), and; 3) a general guide for monetizing any HTTP app via x402 - FSI use cases highlighted: trading agents accessing real-time data feeds, compliance agents pulling sanctions lists, credit decisioning agents querying bureau data; all per-query instead of fixed subscriptions - McKinsey projects agentic commerce will mediate $3 trillion to $5 trillion of global commerce by 2030 Why this is notable: - This is AWS legitimizing x402 as enterprise infrastructure - They’re shipping reference architectures, sample repos, and integration guides that map directly onto Bedrock AgentCore (their managed agent stack) and CloudFront (their CDN/edge layer) - AWS is effectively telling FSI institutions: this is how your agents will pay for things. - The fact that the blog sits under their Financial Services Industries vertical, cites McKinsey’s $3-5T projection, and frames x402 alongside compliance and audit requirements, signals that AWS sees this as a production-grade payments primitive, as opposed to a niche protocol That’s a massive distribution and credibility unlock for x402 adoption - follow @KhalaResearch we have a full report dropping this week I’ll link the article below

Any token now works on EVM chains with x402

ERC-8004 Genesis Month is over🎉, with all the leading chains onboard and thousands of agents registered. Let’s celebrate together tmr at 5 PM UTC / 10AM PT: luma.com/658en7zs AGENDA ​5:00 PM UTC - Intro & Next steps @marco_derossi, @MetaMask 5:15 PM - 5:50PM - Presentations @autonolas @virtuals_io @redstone_defi ​5:50 PM - 6:20 PM - Keynotes Erik Reppel (@programmer), @CoinbaseDev Nenad Tomašev (@weballergy), @GoogleDeepMind 6:20 PM - 7:15 PM - Presentations @Zyfai_ @8004_scan @bondoncredit @agent0lab @daydreamsagents ​7:15 PM - Closing remarks @DavideCrapis, @ethereumfndn

Every day new companies integrate x402. Bullish. Congrats to the @MessariCrypto team!

Announcing ETHConf 2026 Speaker: @programmer, Head of Engineering (CDP) at @coinbase / @coinbasedev. He created x402, a protocol embedding stablecoin payments directly into HTTP, enabling programmable payments across internet infrastructure. June 8–10, NYC.

Always love to see novel concepts for extensions!

x402, a open and neutral standard for internet-native payments.

@shafu0x It’s forbidden

I think its time for x403

<1 year ago x402 did 158 transactions in a week. @artemis says yesterday x402 did 78k transactions. Crypto and open protocols are spike-y, but if you average it out, thats 108% growth compounding monthly. It's insanely early, but its incredible to see how far its come.

@merit_systems @agentcashdev Fun onboarding system, congrats on the launch!

@chintanturakhia perhaps the greatest pitch for ai

One of the underrated consequences of vibe tooling: It’s not just that I can build the tool I need instead of buying from a vendor. It’s that I’ll never have to procure a vendor using Zip. Ever again.

@ASvanevik Slowly, then all at once

we're about to cross $100 in revenues in x402 payments from agents 😅 babysteps, but fun!

@BobbyThakkar How could it be better?

just a reminder that x402 is extremely poorly designed

@serpinxbt CDP's facilitator performs sanctions screening, AML checks, and KYT for every x402 transaction it sees.

no one has explained how x402 is going to handle fraud, OFAC sanctions, AML, and typical KYC constrains of running a business that accepts payments agentic payments will be the #1 psyops for fraud “but it’s just an agent bro!! he’s just buying APIs” - some guy in north korea

“ My big push is, open is good because anyone can now go and build and that’s an incredible thing that has positive sum dynamics that are hard to measure...What forces can we do to push towards open?” “I think x402 is one of those sources, but we need this agentic standards stack that's kind of emerging with x402 and 8004 and there's more things that I think are needed as well.” “ I think if we don't actively think about open or closed in this context, we're just going to default to closed.” - @programmer of @CoinbaseDev

Magical internet money

Open discovery and trust for agents will be an existential challenge for free markets, and democracies, in the AI era. That’s why I’m excited to see ERC-8004 breaking out beyond Ethereum and becoming the leading decentralized agent registry protocol. Yeah. It’s still *very* early. This will take time and maturity. But we’re making real progress, one small step at a time. Welcome, @solana!

FULL CONVERSATION with Erik Reppel, Creator of x402 & Head of Engineering at Coinbase Developer Platform – Why x402 enables internet native microtransactions – How payments embed directly in HTTP requests – Inverted API keys remove signup friction – Open vs closed agent commerce rails – The Bazaar marketplace lets agents monetize services

TODAY on 11AM @programmer Creator of x402 Head of Engineering, @CoinbaseDev