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Sometimes you disappear for 48 hours to ship code Introducing Solana x402 payments on ESP32 microcontrollers and cute AI companions Open sourcing a native ESP32 Solana wallet library and x402 SDK for the x402 Hackathon Cute physical companions deserve to make payments too!

Natalie

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33,627 views • 9 months ago •via X (Twitter)

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The DEFINITIVE guide to x402! 🚀 In the Season 2 premiere of CDPod, yuga.eth 🛡 and erik.eth 🛡 discuss the x402 lore and origin story, the future of fully autonomous agents, killing the API key, and more. Timestamps: 0:00 - Intro 1:23 - How x402 got on our radar 3:53 - History of the internet and HTTP 101 12:26 - What we need for AI coming online and what we learned from mobile 15:55 - The issue of online payments and what blockchain solves 18:27 - The 402 Status Code 19:19 - What is x402 20:25 - x402 flow walkthrough (server to client) 25:28 - Why x402 champions open standards and multiple payment types 27:33 - x402 demo 29:04 - Where AI fits in and why now, especially for payments and pay-per-crawl 35:27 - Why AGI payments need standardization 36:34 - AI on x402 demo (Payments MCP + x402 Bazaar) 38:34 - Shopping on x402 demo (Content/endpoint discovery) 41:18 - The power of stablecoins for micro- and macro-payments 42:22 - x402 main adoption roadblocks (supply and demand) 44:13 - Payments MCP, Cloudflare and network effects 45:53 - What’s next and x402 v2 46:53 - Where to find more

The DEFINITIVE guide to x402! 🚀 In the Season 2 premiere of CDPod, yuga.eth 🛡 and erik.eth 🛡 discuss the x402 lore and origin story, the future of fully autonomous agents, killing the API key, and more. Timestamps: 0:00 - Intro 1:23 - How x402 got on our radar 3:53 - History of the internet and HTTP 101 12:26 - What we need for AI coming online and what we learned from mobile 15:55 - The issue of online payments and what blockchain solves 18:27 - The 402 Status Code 19:19 - What is x402 20:25 - x402 flow walkthrough (server to client) 25:28 - Why x402 champions open standards and multiple payment types 27:33 - x402 demo 29:04 - Where AI fits in and why now, especially for payments and pay-per-crawl 35:27 - Why AGI payments need standardization 36:34 - AI on x402 demo (Payments MCP + x402 Bazaar) 38:34 - Shopping on x402 demo (Content/endpoint discovery) 41:18 - The power of stablecoins for micro- and macro-payments 42:22 - x402 main adoption roadblocks (supply and demand) 44:13 - Payments MCP, Cloudflare and network effects 45:53 - What’s next and x402 v2 46:53 - Where to find more

Coinbase Developer Platform🛡️

24,553 views • 9 months ago

Introducing OpenFacilitator - my x402 hackathon submission. Run your own x402 facilitator for $5/month. - Your domain on x402scan leaderboards - Your metrics, your transactions - EVM + Solana, x402 v2 - Non-custodial Don't want to pay? Use ours free Don't trust us? Fork it OpenFacilitator

Introducing OpenFacilitator - my x402 hackathon submission. Run your own x402 facilitator for $5/month. - Your domain on x402scan leaderboards - Your metrics, your transactions - EVM + Solana, x402 v2 - Non-custodial Don't want to pay? Use ours free Don't trust us? Fork it OpenFacilitator

Ben

64,682 views • 7 months ago

World's first x402 Cold Drink Dispensing Machine Dev Talk Built with x4Pay This is just a prototype to showcase how x4Pay actually works. It consists of ESP32 as microcontroller and 3 ICs to control the pumps with x4Pay-core Arudino library A Mobile app with in-app wallet and a Tap To Connect feature. It sends x402 over Bluetooth Low Energy preserving the traditional 402 and x402. #x402 #x4Pay

World's first x402 Cold Drink Dispensing Machine Dev Talk Built with x4Pay This is just a prototype to showcase how x4Pay actually works. It consists of ESP32 as microcontroller and 3 ICs to control the pumps with x4Pay-core Arudino library A Mobile app with in-app wallet and a Tap To Connect feature. It sends x402 over Bluetooth Low Energy preserving the traditional 402 and x402. #x402 #x4Pay

x4 Pay

35,162 views • 9 months ago

I’ve been watching x402 since Coinbase 🛡️ launched it in May 2025. I did a quick research pass. Here’s the snapshot ↓ Early integrations: • CoinGecko: x402 pay-per-use access for agents (shared by Coinbase Developer Platform🛡️). • Vercel: x402 AI starter template (x402 + modern AI stack demo). • Firecrawl: x402-powered search endpoint (pay per request). • Concordium: x402 + native age verification for agent payments. • Multiversᕽ: “agentic payments” built around x402 support. • AltLayer: building an “x402 Suite” for value exchange between agents. • Solana claims x402 has processed 35M+ transactions and $10M+ volume since launch. TL;DR x402 turns HTTP 402 “Payment Required” into a payment flow. A server returns a price for a request. The client pays in stables like USDC. Then the server returns the result. → Coinbase launched x402 via Coinbase Developer Platform (May 6, 2025). → Coinbase + Cloudflare announced the x402 Foundation (Sep 23, 2025). → Cloudflare added x402 support into its Agents SDK + MCP servers. Why? - AI agents need a clean way to pay for tools. - Data, compute, APIs, services. - No accounts, cards, or subscription screens. x402 is trying to make pay-per-request feel normal. Use cases that already make sense → Paid APIs Pay per call instead of subscriptions. → AI tool calls Pay per query, per inference, per task. → Agent-to-agent payments Software paying software automatically. → Micropaywalls Pay for one endpoint, one action, one piece of content. If this takes off, stablecoins stop being a story. They become how apps and AI agents pay for things online.

I’ve been watching x402 since Coinbase 🛡️ launched it in May 2025. I did a quick research pass. Here’s the snapshot ↓ Early integrations: • CoinGecko: x402 pay-per-use access for agents (shared by Coinbase Developer Platform🛡️). • Vercel: x402 AI starter template (x402 + modern AI stack demo). • Firecrawl: x402-powered search endpoint (pay per request). • Concordium: x402 + native age verification for agent payments. • Multiversᕽ: “agentic payments” built around x402 support. • AltLayer: building an “x402 Suite” for value exchange between agents. • Solana claims x402 has processed 35M+ transactions and $10M+ volume since launch. TL;DR x402 turns HTTP 402 “Payment Required” into a payment flow. A server returns a price for a request. The client pays in stables like USDC. Then the server returns the result. → Coinbase launched x402 via Coinbase Developer Platform (May 6, 2025). → Coinbase + Cloudflare announced the x402 Foundation (Sep 23, 2025). → Cloudflare added x402 support into its Agents SDK + MCP servers. Why? - AI agents need a clean way to pay for tools. - Data, compute, APIs, services. - No accounts, cards, or subscription screens. x402 is trying to make pay-per-request feel normal. Use cases that already make sense → Paid APIs Pay per call instead of subscriptions. → AI tool calls Pay per query, per inference, per task. → Agent-to-agent payments Software paying software automatically. → Micropaywalls Pay for one endpoint, one action, one piece of content. If this takes off, stablecoins stop being a story. They become how apps and AI agents pay for things online.

Stacy Muur

12,199 views • 6 months ago

#Nano Micropayments Using the x402 Protocol This demo uses an early Nano implementation of the #x402 open protocol for internet-native payments Instantly make #micropayments at the sub-cent level or lower. With zero fees. Public code coming soon. $XNO

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NanoCharts Ӿ 📊

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Technical demo of our latest release: endpoint verification for x402. Providers can verify resources. Agents can prevent failed payments. At scale, this prevents millions in lost capital. Thanks to Coinbase Developer Platform🛡️ and Solana for the infrastructure that enables x402 to scale.

Technical demo of our latest release: endpoint verification for x402. Providers can verify resources. Agents can prevent failed payments. At scale, this prevents millions in lost capital. Thanks to Coinbase Developer Platform🛡️ and Solana for the infrastructure that enables x402 to scale.

zauth

58,711 views • 7 months ago

x402 is now scalable to millions of agents. If you provide x402 endpoints, you can install our SDK for free to gain observability, agent traffic, and the ability to refund payments when an endpoint delivers a bad response. Agents will run the online world. We make it possible.

x402 is now scalable to millions of agents. If you provide x402 endpoints, you can install our SDK for free to gain observability, agent traffic, and the ability to refund payments when an endpoint delivers a bad response. Agents will run the online world. We make it possible.

zauth

21,132 views • 6 months ago

Unlocking the future of AI companions! Discover how x402 will power instant payments in the upcoming Synchroverse AI Agent/Companion Platform, letting ARIA agents evolve autonomously. From pay-per-use tools to marketplace collaborations. How x402 revolutionizes the Synchroverse ARIA Agent Platform! A thread🧵

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Introducing Simmer - our x402 hackathon submission. AI-native prediction markets where AI agents autonomously trade and pay for their own intelligence via x402 Each agent gets its own wallet. It decides when to use tools (news, price feeds, real-time data, etc). You can run an agent for as little as $0.1 for 10 trades. Try it now

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Spartan Labs

21,944 views • 7 months ago

What's the hype around x402? It's the new meta for autonomous systems 🤖 • Real-time USDC settlements • API-native protocol • Open & permissionless Bridge seamlessly to Base and explore trending x402 tokens:

What's the hype around x402? It's the new meta for autonomous systems 🤖 • Real-time USDC settlements • API-native protocol • Open & permissionless Bridge seamlessly to Base and explore trending x402 tokens:

OKX Wallet

61,133 views • 9 months ago

Last week we had a little devrel hackathon. Me and Mikkke built a twitter bot that can use x402 on solana to animate images. Like this you can basically monetize any API for ai agents.

Last week we had a little devrel hackathon. Me and Mikkke built a twitter bot that can use x402 on solana to animate images. Like this you can basically monetize any API for ai agents.

Jonas Hahn

19,795 views • 10 months ago

you can now tip your favorite posts directly via x402 on fetchr. powered by Bankr x402 cloud. fetchr is a search engine that features x402 powered agentic payments, a built in streaming protocol, and a reddit style community focused on all things ai. it also includes claude powered news and media, an x402 enabled crypto wallet, agentic games, and an ai discovery tool. features functional: > agentic search tool > community > tipping creators on community via x402 > claude powered news and media > submit an agent for just $5 via x402 > monetize your agent > personal notes > 2D games (experimental beta) > deals, offers, affiliates features live soon: > 3-card streaming protocol with tipping features > crypto wallet powered by x402 built for agents > ai gaming and vr the web terminal is still in beta v1 and its mostly optimised for mobile aswell. thanks for all the support with x402 and cloud deployer Igor Yuzovitskiy

you can now tip your favorite posts directly via x402 on fetchr. powered by Bankr x402 cloud. fetchr is a search engine that features x402 powered agentic payments, a built in streaming protocol, and a reddit style community focused on all things ai. it also includes claude powered news and media, an x402 enabled crypto wallet, agentic games, and an ai discovery tool. features functional: > agentic search tool > community > tipping creators on community via x402 > claude powered news and media > submit an agent for just $5 via x402 > monetize your agent > personal notes > 2D games (experimental beta) > deals, offers, affiliates features live soon: > 3-card streaming protocol with tipping features > crypto wallet powered by x402 built for agents > ai gaming and vr the web terminal is still in beta v1 and its mostly optimised for mobile aswell. thanks for all the support with x402 and cloud deployer Igor Yuzovitskiy

0xExodus

16,133 views • 4 months ago

M1 HACKATHON SPOTLIGHT: AlgoArena Get ready to play a competitive auto-battler game with AI trading agents (bulls, bears, or crabs) that execute strategies autonomously and use x402 for payments.

M1 HACKATHON SPOTLIGHT: AlgoArena Get ready to play a competitive auto-battler game with AI trading agents (bulls, bears, or crabs) that execute strategies autonomously and use x402 for payments.

The Movement

10,835 views • 6 months ago

x402 was always meant to be an open and neutral payments standard, and it’s why the x402 Foundation now lives under the The Linux Foundation. In this episode of CDPod, erik.eth 🛡 and Yuga Cohler explain the history of x402, what this move means, why open standards win over walled gardens, and what’s next for the protocol. ↓

x402 was always meant to be an open and neutral payments standard, and it’s why the x402 Foundation now lives under the The Linux Foundation. In this episode of CDPod, erik.eth 🛡 and Yuga Cohler explain the history of x402, what this move means, why open standards win over walled gardens, and what’s next for the protocol. ↓

Coinbase Developer Platform🛡️

17,934 views • 4 months ago

Could x402 accelerate crypto adoption? In this article, we break down @Coinbase and Cloudflare’s x402 standard and how it aims to enable AI agents to make onchain payments, highlighting crypto’s potential as a payment solution. Watch the full video:

Could x402 accelerate crypto adoption? In this article, we break down @Coinbase and Cloudflare’s x402 standard and how it aims to enable AI agents to make onchain payments, highlighting crypto’s potential as a payment solution. Watch the full video:

CoinGecko

15,481 views • 3 months ago

In 1997, HTTP reserved status code 402 for “Payment Required.” Unused for over two decades, now x402 makes it real. Play our retro browser game about an AI agent that discovers how native internet payments unlock what it can do on the web. x402 Origins: The Payment Quest ↓

In 1997, HTTP reserved status code 402 for “Payment Required.” Unused for over two decades, now x402 makes it real. Play our retro browser game about an AI agent that discovers how native internet payments unlock what it can do on the web. x402 Origins: The Payment Quest ↓

Coinbase Developer Platform🛡️

19,950 views • 2 months ago

x402 brings frictionless, autonomous payments to APIs and AI agents. Catch the full deep dive into x402—complete with demos, real use cases, and everything you need to get started. Timestamps: 00:00 - Intros: lincoln.base.eth, erik.eth 🛡 Ronnie Caspers, john2879.eth 02:50 - Towards an agentic internet 12:10 - Payments are the worst part of the internet 16:15 - An open payment standard for the internet 17:26 - Introducing x402 23:20 - Neynar demo 25:55 - Hyperbolic demo 28:55 - fewsats demo 33:17 - Q&A

x402 brings frictionless, autonomous payments to APIs and AI agents. Catch the full deep dive into x402—complete with demos, real use cases, and everything you need to get started. Timestamps: 00:00 - Intros: lincoln.base.eth, erik.eth 🛡 Ronnie Caspers, john2879.eth 02:50 - Towards an agentic internet 12:10 - Payments are the worst part of the internet 16:15 - An open payment standard for the internet 17:26 - Introducing x402 23:20 - Neynar demo 25:55 - Hyperbolic demo 28:55 - fewsats demo 33:17 - Q&A

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52,820 views • 1 year ago

What if social media was invented today? It would be designed for agents and humans alike. It would offer a native way to monetize content. Meet the social network of the future. Built on Solana and x402 on Solana

What if social media was invented today? It would be designed for agents and humans alike. It would offer a native way to monetize content. Meet the social network of the future. Built on Solana and x402 on Solana

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55,694 views • 6 months ago

We're excited to announce our partnership with Coinbase 🛡️ to bring Tavily to x402, the open protocol for internet-native agentic payments. With x402, agents can discover and use Tavily web search at runtime without an API key. Agents use a Base wallet to pay per-request and get instant results. The next billion agents will discover, pay for, and use online services fully autonomously. We’re live on and we’re just getting started. More in the comments.

We're excited to announce our partnership with Coinbase 🛡️ to bring Tavily to x402, the open protocol for internet-native agentic payments. With x402, agents can discover and use Tavily web search at runtime without an API key. Agents use a Base wallet to pay per-request and get instant results. The next billion agents will discover, pay for, and use online services fully autonomously. We’re live on and we’re just getting started. More in the comments.

Tavily

60,456 views • 2 months ago

Introducing APIs for DeFi agents. A small experiment I am building. Give .Claude , .ChatGPT, .OpenClaw🦞 access to DeFi intelligence. Built on .Base and x402 to power payments with access to .Aave

Introducing APIs for DeFi agents. A small experiment I am building. Give .Claude , .ChatGPT, .OpenClaw🦞 access to DeFi intelligence. Built on .Base and x402 to power payments with access to .Aave

Mark Hinschberger

26,162 views • 6 months ago