Building something new. Prev head of eng @CoinbaseDev, @ourzora Creator of x402.org

The Internet
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 🛠️
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I started @coinbase as an intern. Highly recommend.
Want to intern at Coinbase? Just so you know, it won't be easy: → Our interns help make history, not slides → You'll lead projects that update the global financial system We're accepting applications for our 2026 intern program now.
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Yesterday was my first day back @coinbase as Head of Engineering for @CoinbaseDev. I'm super excited for another tour of duty working with @nemild @yugacohler @Misha_Guterman @brian_armstrong and the rest of the team. While @zora I learned first hand that developer tools have a long way to go, and I strongly feel @CoinbaseDev can meaningfully accelerate developers building onchain. Builders: reach out, my DM's are open, how can we help you?
Thrilled to announce that @programmer is joining @coinbasedev as our new Head of Engineering. With Erik’s leadership, we’re doubling down on making it frictionless to build onchain. 1M developers. 1B users. Onchain. Let’s go. 🌎
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x402 shout out in @coinbase's earning. Time to upgrade the internet.
x402 lets you attach a stablecoin payment to any web request. We think this will be a big part of the new internet. Try it out in your products with @CoinbaseDev
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x402 lets you accept payments on multiple networks at the same time. Server says "here are all the ways I accept payment" Client chooses which one it prefers
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x402 lets you accept payments without API keys or credit cards, today. Open source, Open standard. Github in 🧵
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And there I am, a VC happy hour in Soma. I order a drink at the bar and pay with my Apple card. I turn around and joke to a man in a Patagonia vest that all starts are bundling, unbundling, or ISAs. He pats me on the should and says "let me know how I can be helpful"
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Over at @CoinbaseDev we're looking to hire 2 engineers for a skunkworks project we're cooking up. Personally I'm extremely bullish on this project, I think its got "change the internet" scale upside. You'd initially reporting to me and working on an open protocol. Link in 🧵
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In personal news: Yesterday was my last day @coinbase. I've been with the company as either an intern, contractor, or full time employee since 2017 and its been an absolutely incredible ride
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Anyone who backs @ConstitutionDAO will be a Funding Father
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x402 is awesome
x402 is awesome
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x402 is an open standard for internet native payments, regardless of asset or network. Its core to the principals of x402. A huge shoutout to @SolanaFndn and @notorious_d_e_v working with us on a thoughtful Solana implementation!
Coinbase's x402 now supports Solana 🤖 TLDR? AI Agents can go online and purchase services using USDC on Solana. ☑️ No sign-ups needed ☑️ Universally accepted (uses HTTP) ☑️ <1 second payments
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After 6 months of real world x402 adoption, we're starting to plan v2. We've learned a ton and received amazing feedback from builders across the community that inspired the proposed v2. For your review: github.com/coinbase/x402/pul…
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In the last week x402 has had: 1.12 million transactions $1.24 million in volume 69k buys of 774 services Across >7 facilitators, >3 chains Just getting started.
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First day @ourZORA Probably nothing 🌜🌞🌛
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What this graph shows very clearly: The demand side of the market is there. As more services start integrate x402 and as awareness spreads, x402 transaction volume grows. There is a real need for a standard way to move money on the internet.
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Yesterday was my last day as head of engineering @ourZORA. Its been an absolutely privilege working with @tbtstl @js_horne @dg_goens and the rest of the team for the last 2.5 years. As for me, I'll be moving back to Vancouver and taking some time off to explore and be closer to family. If you're in the Vancouver tech community I'd love to connect. I remain incredibly bullish on Zora and am very excited for the world to see everything the all-star team has been cooking up. Zora is hiring for a bunch of different engineering roles, I highly recommend you apply. boards.greenhouse.io/zora/
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In the last 4 weeks x402 has 402x'd
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The layers of the x402 standard
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AWS on stage at M2020 talking about x402 👀
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Replying to @danielgross
"I really need to upgrade to neurolink pro, these ads between thoughts are getting annoying"
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unironically I lived in a place with 2 dishwashers for ~3 years and we did exactly this. 10/10 would recommend.
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x402 # transactions: billion -> bald trillion -> tattoo
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.@CoinbaseDev is hiring a senior engineer to work on x402! You'll be helping to advance the spec, SDKs, ecosystem, build out showcases of x402, and more. Apply in 🧵
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I'm speaking @coinbase's ML & Blockchain summit about how to make the internet easier for agents to use. I believe we're at an inflection point, its time to start making the internet work for human AND agents. I'm also leaking some alpha on what @CoinbaseDev has been up to 🤐
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Fun fact, the ticker on api.zora.co is live data from our API and updates its self roughly every block. Sit back and watch the world go by
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Micropayments and AI are going to unlock businesses that were previously impossible
x402 Summariser Bot is now available on Telegram - t.me/x402SummariserBot pay $0.10 via x402 to summarise the last x minutes of your chat only possible because of @base & @daydreamsagents
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Another new all time high in weekly transactions on x402! 19k last week.
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Some cool x402 projects I've come across in the wild: (running thread, tag me in your projects! I'm sure I'm missing tons)
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We built x402 to make per-call payments actually work. 0 fee, high speed, internet native payments enables truly autonomous agents, eliminates the friction of credit cards for content creators looking to monetize their work, and is 10x friendlier for humans. Learn more about x402:
We are excited to introduce x402–a new open source payments protocol built on HTTP rails. Let’s break it down:
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My favorite thing about the new CDP Wallets: they're EIP-1193 compatible. Meaning they work out of the box with tools like Viem and ethers.js. All the tools you love, no need to manage private keys.
🚨 Now live: CDP Wallets (Alpha) Developer-custodied, secure enclave–backed wallets. No infra. No key management. Just fast, API-driven control. Perfect for agents, bots, automation, and onchain apps. 🧵👇
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If you wanna work on stuff like this DM me
brb currently indexing all of ethereum
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One fun thing about being back at Coinbase, I get to see code I wrote as an intern 8 years ago. Honestly a lot of it holds up
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wow this took off. It takes a village, x402 would be nowhere without people like @carsonroscoe7 @flyingkittans @nemild @dankimxyz @R_onchain @VonNeumann87 @organ_danny @Must_be_Ash @kleffew94 John, Ning, Linda, and many many more.
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Jokes on you everyones buying PNGs not JPEGs
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Replying to @dmihal
Actively working to enable arbitrary erc20s, just significantly harder for older tokens to maintain the minimal friction/gasless goal of x402. It’s only taken this long because I want to make sure we get it right.
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Replying to @Jason
damn was in ai and pivoted to crypto, what do i do now?
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Payments mcp lets your AI buy stuff using x402 github.com/coinbase/payments…
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Every blockchain should be sprinting to scale 10x and add native private transfer (ideally with a gasless abstraction) Payments are coming onchain faster than anyone realizes.
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see it once, see it everywhere x402 everything
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Agents are way more powerful if they have the right tools for the job. x402 gives agents ♾️tools
Gave an agent a hot wallet + our new x402 AI SDK and throwing it on a while loop. Letting it call anything it can find on @x402scan. Base case, will result in some clean abstractions for adding 402 tools to agents. Best case, world domination?
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Replying to @ChristianSelig
Sad to hear this. Personally I'd be willing to pay each month for the cost of the number of API requests I consume, +25% to you as a developer
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A few reasons why I'm extremely bullish about x402: - Its native - Its composable - Its a better UX for AI agents and humans 🧵
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Based on amazing feedback from the community, we’ve made updates to the v2 proposal. You can see the diff here: github.com/coinbase/x402/pul…
After 6 months of real world x402 adoption, we're starting to plan v2. We've learned a ton and received amazing feedback from builders across the community that inspired the proposed v2. For your review: github.com/coinbase/x402/pul…
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Replying to @frankdegods
Utility. An open internet where value moves as easily as data.
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More use cases good.
The most important x402 metric to watch
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I'll be talking about the new kinds of businesses now possible with x402 at 4pm PST
If you are entrepreneurial + can prompt a coding agent, _this_ is your agent take off moment < Join the x402 startup spaces > Guests @programmer - Head of Eng @Must_be_Ash DevRel of @CoinbaseDev w/ @lordOfAFew + @LordSecretive of Daydreams > new use cases + how to start
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I'll be doing a fireside chat on x402
we're hosting a technical meetup on Agentic Payments in SF this week! Come hear from the leaders in the space luma.com/cju3supg?tk=vlD8vV
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🌜🌞🌛 → 🎵🌞🎵 zora.fm
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>In before 75 million new Ethereum users >In before people complain about gas and blame cb But for real I think this is the most exciting feature I've seen anywhere in crypto in a while
Really excited for this product launch - we've been working on it for a while now. It lets you access third party dapps right from within the Coinbase app. Backed by our MPC technology. Rolling out 1% to Android today, and will grow from there. blog.coinbase.com/access-web…
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We're hiring the first infra engineer @ourZORA! This is an amazing opportunity for someone looking to take the leap into crypto, no direct crypto experience required! You bring the infra skillz, we'll teach you about crypto. Come build. DM's open. ourzora.notion.site/Infrastr…
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🔧 Its a long weekend, I only found out on Thursday, I have no plans. That means one thing: hack weekend 😃 Gonna try live tweeting my progress in this thread. Hopefully it increases my accountability and forces me to ship. #HackWeekend
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slowly converting everyone in the Zora office to celsius. the superior unit and energy drink.
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x402 bazaar allows agents to dynamically find and pay for tools and data to better solve problems. The first time you see it work is magic. More to come.
Introducing the x402 Bazaar: The open, machine-readable discovery layer for x402. Imagine a dynamic, vibrant ecosystem where specialized AI services, data feeds, and APIs can thrive. A search engine for agents. This is how the machine economy gets bootstrapped. 🧵
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Zora is hiring a data scientist to work with the legend @K_p_Otte! If you're a data wiz with experience in product analytics and blockchain data apply here boards.greenhouse.io/zora/jo… or DM me some Dune dashboards you've built
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.@yugacohler and I interviewed the legend @michaeldehoog: Coinbase OG, the first engineer on Base. So much alpha. We discuss: - What were the first few weeks of Base like? - CoinNet -> BaseNet -> Base? - Navigating protocol changes - RISC-V & the EVM - Pre-compiles - Adding passkeys to the EVM - Bootstrapping Base - Interop - General bullishness on ZK
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Theres like 5 ideas a decade that matter
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The @AtlantaFed gets x402. Great article on machine to machine payments and its impact on AI. atlantafed.org/blogs/take-on…
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CDP Server wallets are honestly incredible tech. Consistently being able to land hundreds of txs per block means you don't need to sweat going viral. Policy engine + built in KYT checks keep you safe. Scale + safety = best in class wallets for AI docs.cdp.coinbase.com/server…
In just 5 days, the CDP x402 facilitator settled over 1.2 million payments using a CDP Server Wallet. 🚀 There were 132 @base blocks that each included 100+ txns from that wallet, proving it can handle massive agent payment throughput. If you need high-throughput infra for agentic commerce, try x402 with the CDP facilitator, or host your own facilitator using a CDP Server Wallet.
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Typically I co-host CDPod but it was super fun to have the script flipped and get interviewed by @yugacohler. imo Yuga is quickly becoming one of the best interviewers in the game
x402 revives HTTP 402's dream, powering seamless internet-native payments with stablecoins. @programmer breaks down what x402 is and how it works in our latest CDPod episode.
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Not sure who needs to hear this, but if you’re excited about @ourZORA and the work we’re doing, we’re hiring crypto oriented backend and frontend engineers. For now senior engineers only, likely to change in the future. Shoot me a DM if you’re interested.
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This is super cool. For the first time you can just pay $1 for an AI to perform research for you, rather than subscribing to a service. Available as both a UI an and API. If you're building an AI agent, you can now have that agent pay for deep research.
You were tab-switching between Google, Dune, Twitter, Discord, forums, and audit reports for analyzing one topic. Heurist Deep Research is live today to solve it. The first AI research platform built on X402 payment rails.
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Give Claude a wallet with PaymentsMCP nitter.app/programmer/status/1982… Build on @CoinbaseDev embedded wallets
On x402... the blocker is agents don't have wallets. How to use x402 APIs in Cursor or Claude Code? crickets... Custom wallet implementations, are not reusable across agent stacks. What we need is a custodial wallet as x402 MCP service. Agent -> Wallet MCP -> x402 MCPs. 🚀
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Replying to @naval
Nah, you can re-sell taxi medallions
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Powered by @StabilityAI & @fal_ai_data for model & inference
Introducing: AI Layers on Canvas
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Tip your developers
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Replying to @JustJake
100% gen alpha can’t use computers, tablets only, knowledge will be universal wisdom will rare
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I propose 81
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Ash is truly the vibe coded demo goat
Agent-Based Bidding I built a system where autonomous AI agents compete in real-time auctions (basename @ensdomains) using x402. Here's how it works 👇 1/10 🧵
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Accepting stablecoins for payment has never been easier. If your business wants to add a new revenue line item with pay per use access, reach out!
Any API can start earning revenue now. No new stack, billing setup, or crypto expertise required. x402 + @CoinbaseDev + @Coinbase Business make it simple — price per call, get paid in USDC, and cash out anytime. @sid_coelho @programmer and I show you how easy it. And check out the slick thumbnail generator demo by @Must_be_Ash 👇
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Ash absolutely cooking with the use cases and examples. Ad placement agents, powered by x402 + @firecrawl
Autonomous Ad-Agent The agent scrapes the site & analyze web traffic to decide on relevance & budget allocation. After securing an ad-space space through bids, it generates an Ad. Full autonomy from research to creation. All through x402. Here's how it works 🧵👇
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Working at Zora has made me really wish I could draw / had any type of visual art ability
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I would if their app was good as apollo
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See y’all there
What if agentic economies were open, interoperable and human-first? Join Trustless Agent Day. For pioneers, builders & researchers building the foundations of a new Internet. Hosted by @Coinbase, @GoogleCloud, @EthereumFndn and @MetaMask Nov 21st, La Rural Agenda is live.👇
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There are a million podcasts in crypto. CDPod is different. We talk to CTOs and and engineers about how their products actually work under the hood and how to actually build in crypto. Listen to @yugacohler and I deep dive how @zora works at the contract level with @tbtstl
Introducing CDPod—where we go under the hood with builders shaping the crypto ecosystem. In the first episode, we spoke with @tbtstl, CTO and Co-Founder of @zora, about how coining works, composability in crypto, the challenges of building in Web3, and much more.
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See y'all there
8004 and x402 have a joint venue at devconnect
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AI now has a super power. Your chat interface can pay for tools and service that make it better, fully autonomously. Introducing Payments MCP. Payments MCP gives your Claude or any other MCP client a wallet and the ability to discover and pay for any endpoint that accepts x402 payments.
Announcing Payments MCP, the easiest way for AI agents to get onchain via x402. 🚀 It lets LLM models like Claude, Gemini, and ChatGPT gain access to onchain tools like wallets, onramp, and payments with no API key required. 🧵
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idk who needs to hear this but @dagsterio is an amazing tool and their slack is one of the most helpful I've seen
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In other personal news: Today is my first day @Clubhouse, I'll be working on discovery. I'm super excited to be joining such an all-star cast lead by @pdavison and @rohanseth, I really feel like Clubhouse is special and I can't wait to be a part of the journey and learn even more
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My biggest takeaways from Denver 1. The Ethereum ecosystem puts way too much cognitive burden on newcomers way too early. You walk into the conference and there’s like 10 different chains around, it’s all DA, L2, zkroll ups. These things are of course important, but if it’s you’re new to the scene they’re noise. I spent 30 mins talking to an iOS dev who was trying to learn about ethereum, he was very sharp and kind of got some of the concepts above, but I told him look those things are like understanding the kernel of an iPhone. At some point you should get to them, but start out building a simple smart contract, building a front end for it, and deploy it on a mainnet of really any chain. You learn far more from doing that than trying to figure out the trade offs between optimistic and zkrollups. 2. We need more dapps with presence at these events. The fact that I saw more booths for chains than dapps, is not a good thing. What’s the point of having all these chains if nothing gets built on top of them. 3. Everyone is incredibly nice. Events like denver are worth attending just to talk to people. 4. We as a community need to participate in more hackathons (I’m guilty of this myself, will change this) Shoutout to everyone who hacked, but wish there were 5x more people hacking. The hacker area felt pretty dead most of the weekend. Overall, personally my social battery struggles to do these multi day events, but they’re important and I’m glad I went 🫡
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Edit the internet
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In my opinion this is the most futuristic agentic commerce experience in the world right now. Try it out today.
Replying to @CoinbaseDev
Payments MCP connects AI and crypto, unlocking real-world economic participation for intelligent agents and setting the foundation for the next wave of agentic commerce. → Dive into the repo: github.com/coinbase/payments… → Read more: coinbase.com/developer-platf…
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In Singapore for SFF this week then flying straight to DevConnect in Argentina May be a little slow to respond
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The speed difference between syncing a reth node on GCP vs @latitudesh
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Had a great time talking with @paulbarron about x402 and the new agentic economy
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.@ourZORA community call, we're giving a preview of our new API and would love your feedback, come hang out meet.google.com/cyj-wjhp-kpx notion.so/ourzora/Zora-Commu… this-expires-friday.zora.co/… ourzora.typeform.com/api-fee…
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Low key huge. If you're experimenting with a new metadata format we'd love your contribution
pip install offchain we've open sourced how we process metadata here at @ZORAEngineering! anyone can contribute their own metadata standard and have it show up in the @ourZORA API (github.com/ourzora/offchain)
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In the 90's people worked at "internet companies", now every company is an internet company. I suspect we'll look back in 20 years and every company will be a crypto company. It's a long career and crypto isn't going anywhere.
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Swift for TF is the only thing I've seen that is solving this problem and has a path to work on device, in prototyping, and on server all with the same code or only minor modifications.
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First person who allows me to buy Celsius (the energy drink) via x402 wins
probably nothing
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Work life balance is reviewing PRs on the GitHub app on your phone, but only until your ride arrives
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@CoinbaseDev has the best tools to build onchain
Fully-integrated @CoinbaseDev stack is beautiful @x402scan Composer is also powered by CDP Server Wallets!
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Block explorers are such incredibly powerful tools if you know how to use them
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I think even crazier is how quickly others have caught up / exceeded sora. This is Kling-video 1.0 using the same prompt. Model by @Kling_ai, hosted on @FAL
Google's Veo 2 vs OpenAI Sora
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The team be elite, DM me if you wanna join
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Great explanation and amazing example of what you can do if paid tools and services are lego bricks you can autonomously compose
New tool & video: x402 is hot right now. New standards like x402 need lots of people experimenting. So I spun up AgentBlocks, a forked version of n8n with nodes for x402 basics. Now anyone can try x402 without writing code! Watch me build an x402-gated ETH price API here:
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