Bitcoin Magazine

Cloudflare x402 Integration Opens Door for Bitcoin in AI Agent Micropayments

Cloudflare recently announced the launch of its monetization program via the Coinbase-led x402 machine payments standard. x402, which lets AI agents pay for data online with crypto, has been gaining steam among the AI-pilled, as it unlocks more capable agent interactions with the open web. 

Cloudflare, founded in 2009, has grown from a DDoS mitigation and content delivery network (CDN) provider into one of the internet’s foundational infrastructure companies.

The company, which launched publicly in 2010, had the mission to make web performance and security accessible to everyone, not just large enterprises. Today, Cloudflare powers approximately 20-23% of all websites globally, handles tens of millions of HTTP requests per second across 330+ cities in over 100 countries, touching a significant portion of global internet traffic.

As a result of their adoption and security offering to large portions of the open web, CloudFlare’s integration of x402 is a major development for the structure of the internet. Websites that are increasingly inaccessible to the massive data demands from AI can now sell that data to AI agents for crypto. CloudFlare’s implementation only mentions Stablecoins such as USDC, the Open USD standard, but the protocol supports Bitcoin on-chain and is actively exploring integration of the Lightning network.

The Web is Broken

Kevin Leffew, co-author of the x402 protocol and AI GTM at Coinbase, told Bitcoin Magazine there’s a major user experience issue in the way AI currently interacts with the open web and x402 — which is now under the control of the Linux Foundation — is trying to solve it. “Every api call requires an api key, which in turn requires a human, and adds unnecessary friction,” Leffew explained, adding, “our goal is to kill the api key”.

Popular AI agents such as OpenClaw often require API access keys to special paid web search services, to let the AI agents access the web easily, with the mobility that a human user would enjoy. Services of this sort are offered by popular browsers and search engines such as Brave.com and Perplexity. But who out there wants to be paying a subscription service on top of computer hardware and internet access, plus AI token costs to search the web? These services also require a human to sign up with a credit card for a monthly subscription, paying for access that might be blocked by the websites holding valuable data anyway via non-standard methods. A better solution is needed.

AI agents need to be able to think about money and resource costs, and need to have a computer-friendly way to make payments for novel data. An example of this use case was recently demonstrated by an X account called “Lightning Mode AI,”  which built a wrapper over ESPN FIFA data and had an AI agent pay for it in Bitcoin. The Agent was then able to quickly place bets on outcomes on markets like Polymarket, which could potentially let agent owners earn their money, during the soccer World Cup. 

This example by Lightning Mode AI used an older implementation of the idea behind x402 called L402, a protocol developed by Lightning Labs to specifically enable bitcoin payments for data on third-party websites. 

Denial of service attacks (DOS) are also potentially solved by a machine native monetary system for the internet. The fundamental vulnerability exploited by these DOS attacks revolves around the bandwidth and computing costs to answer a question or query from an internet user. The user sends a request to view a website, the site’s server must compute, resolve and serve the website data back to the user; this has material costs at scale. DOS attacks send massive amounts of requests, often from malware-infected networks of machines (DDOS), targeting the server resources of their victims. This kind of attack can, in theory, be stopped by simply asking for payment from the user before spending the resources to respond to the user’s query. But the payments must be cost-effective and fast enough for the user experience demands of the digital age. 

Protocols like x402 and L402 enable websites to paywall access to their valuable data, while teaching AI agents how to pay for access. No credit cards needed, no user data explicitly shared with payment networks, no ‘are you a bot’ captchas, no annoying account registrations you never use again, no subscription service for web search api key. Just pay for the data you consume. 

The Economics of Micro Transactions

This micro-transaction market between machines is not a new idea. It has been theorized by luminaries of the cypherpunk age like Nick Szabo and others, though it has, up until now, been found lacking. Szabo argued that the biggest problem with micro transactions was not just payment technology, but the cognitive transaction costs involved.

Every time a user makes a payment, their brain needs to calculate whether it is worth it; this also has a cost on users, which can probably be measured in calories, and sometimes deciding to pay a couple of pennies for data is not worth the effort. But AI agents change this equation, in theory.

If AI becomes a new way for users to interact with the open way, then the cognitive costs involved in calculating the merit of spending pennies and even sub-penny values for data might be effectively abstracted away.

Users can simply give their bot a budget with spending policies and let it do its best to use that money wisely. Whether AI agents can be responsible enough to safeguard user funds remains to be seen, but some experiments demonstrate that AI agents can be reasonably resilient at the job. Take Freysa AI, for example, a 2024 era AI agent that held up against 48,000 prompt engineering attempts. Users paid to try to convince the bot to release funds in a smart contract treasury to them; if the bot refused, the bot kept the user’s money, adding it to the treasury. Eventually, someone managed to fool the bot, but not after $50,000 worth of attempts had been made. With hard-coded spending limits, the risk of prompt engineering an AI into giving way its web search lunch money is probably manageable.

The scalability of privacy-preserving digital payments in decentralized, censorship-resistant ways is also effectively already solved. According to Leffew, blockchains like Solana can do payments for a thousandth of a cent and settle it in milliseconds. Bitcoin’s Lightning network can also compete at the micro-transaction scale, and other Bitcoin protocols like the e-cash variants can be as fast as any internet packet, likely beating a highly centralized blockchain system like Solana.  

Viktor Ihnatiuk, co-founder of UTEXO, told Bitcoin Magazine that they are actively working with the x402 developer community to integrate Bitcoin’s layer two protocols via RGB as a payment option. RGB integration would unlock layer two-style Bitcoin payments as well as USDT on Bitcoin settlements. The x402 standard, according to Leffew, is designed to be fundamentally neutral to the payment rails involved, even extensible to fiat rails, though likely will be dominated by cryptocurrencies and, for the foreseeable future, stablecoins. 

Why CloudFlare Should Accept Bitcoin

CloudFlare’s x402 pilot program is a great step towards this vision of a cryptographic money actively used as the native currency of the internet. Its focus on stablecoins to start is also understandable, given the powerful brand and adoption of the dollar, which keeps accounting simple. However, there are a lot of underlying risks involved in how stablecoins are used today that Bitcoin solves.

For starters, most of the stablecoin volume moves on top of Ethereum Virtual Machine (EVM) style blockchains, which use an account model of public addresses; these are actively reused, creating long, detailed, public histories of financial engagement for each user. This is abysmal for user privacy, and tooling to obfuscate user flows on EVM blockchains, such as VPNs for crypto payments, are not common.

As a result, AI agents and their users are actively leaking data that might expose them to targeted attacks from organized cybercrime, among other risks.

Bitcoin, on the other hand, uses a UTXO model, where best practices lead people to create a new address for every payment received, resulting in payment trails that can be more difficult to track. Furthermore, Bitcoin’s fast payment protocols like Lightning, Ark or e-cash often deliver much greater privacy benefits to users by moving value off-chain via various smart contract-related technologies.

Last but not least, stablecoins are fundamentally anchored to the U.S. dollar and its foreign policy. If CloudFlare wants to be a viable option for the multipolar world, it will want to start taking a neutral stance on money. The dollar, while still the most valued currency in the world, is starting to lose ground to rising powers in the east, while alternative, geopolitically neutral currencies like Bitcoin continue to rise. Bitcoin might help CloudFlare maintain or even grow its position as critical internet infrastructure in the multi-polar world.

This post Cloudflare x402 Integration Opens Door for Bitcoin in AI Agent Micropayments first appeared on Bitcoin Magazine and is written by Juan Galt.

Bitcoin Magazine

USDT Returns to Bitcoin: RGB and UTEXO Enable Private Lightning Settlements

Tether, the company behind USDT, is preparing to issue the stablecoin natively on Bitcoin through the RGB protocol version v0.11.1. Deployed by the UTEXO software lab, USDT is set to return to the chain where it first launched in 2014 via the Omni-Mastercoin Layer. 

UTEXO, the company leading the commercial rollout, has positioned itself as the issuer and distributor of this Bitcoin-native USDT in partnership with Tether.  “Finally, after eight years of development—if not more—we are the company that is launching USDT over Bitcoin with strong support from Tether,” said Viktor Ihnatiuk, UTEXO co-founder, in an exclusive interview with Bitcoin Magazine. 

The RGB protocol combines its novel client-side validation with the Lightning network for instant, private settlements, while anchoring security to Bitcoin’s UTXO model. Users can expect to be able to handle USDT on native Bitcoin addresses as well as send and receive it over the Lightning network with compatible wallets. 

The RGB protocol on Bitcoin also offers significant privacy features to USDT users as the asset benefits from Bitcoin’s UTXO model, which standardizes fresh addresses for every transaction compared to the account-based address reused commonly in EVM blockchains like Tron, Ethereum or Solana. Address reuse is the first mistake of onchain privacy, yet most altcoins built their interfaces to reuse addresses, despite the risk it poses to users. RGB’s integration with the Lightning network further protects user privacy by moving USDT via the offchain payments network, which leaves few marks on the public blockchain. The deep integration with Tether also means that there are fewer middleman companies charging extra fees or collecting data. 

On the topic, Vktor emphasized that, “We built Utexo so that USDT could move on Bitcoin the way money is supposed to move: instantly, privately, with no surprises on costs. Our partners integrate our API once and can route USDT on the most resilient open network ever built, with full control over cost structure.”

UTEXO vs TRON

UTEXO emerged from a joint venture involving Viktor’s Boosty Venture Studio, Fulgur Ventures, and Tether Investments. The goal was straightforward: bring RGB to mainnet after years of delays under prior development teams. The protocol had been in active development since at least 2016, but failed to be ready for the 2017 bull market, giving the TRON blockchain dominance over USDT volume and usage throughout the developing world, a dominance which it still retains. 

UTEXO of specifically building “the last mile” of software needed for wide USDT deployment across the Bitcoin ecosystem, which includes a software development kit, APIs, mid-level protocols, UI design work and even a mint bridge that is live today at mint.utexo.com. This bridge lets users move USDT across popular blockchains with “deterministic low fees” and no middlemen thanks to its direct integration with Tether as the primary mint. The RGB protocol layer was developed by Bitfinex R&D Strategist Federico Tenga.

“Right now if you want to swap USDT to Bitcoin you need to pay high fees for all these wallets who charge you a one percent wallet fee plus a swap provider charge of one percent plus, and you have slippage one percent as well, so you pay three percent, and also you wait forever until the swap happens” Viktor told Bitcoin Magazine, adding that; “with USDT and Bitcoin over Lightning, for the first time you have two main assets on one chain, you can swap instantly without any slippage. You can swap decentralized USDT to Bitcoin and back on-chain. The price is almost the same as spot markets in Binance.”

Networks like Tron that are primarily used to move USDT also add extra fees, swap commissions and friction to the user experience. They require a different address type, with fees paid in an asset like TRX, which is only ever used to move the stablecoin. With most of the monetary volume in the crypto market concentrated in Bitcoin and Tether, having to buy an altcoin just to pay fees ends up feeling like red tape. 

Bitcoin, as the payment rails of USDT, also comes with blockchain levels of security that other chains simply can not offer. While USDT will always be fundamentally centralized in Tether as a corporation, the rails can also add risk, for example, if a contentious fork occurs or major bugs are found on novel blockchain systems. Bitcoin, being the oldest and most conservative blockchain, delivers a quality assurance of sorts that can not be matched by other chains. 

RGB traces its roots to Peter Todd’s single-use seals back in 2014 and was formalized in 2016 by Giacomo Zucco and Riccardo Casatta. The RGB acronym, originally derived from “Riccardo Giacomo Bitcoin,” was later rebranded “Really Good Bitcoin”. Tether explored the protocol early but faced delays with the previous team. Had RGB shipped on schedule around 2019, the stablecoin landscape and broader DeFi industry might have developed differently around Bitcoin’s UTXO model instead of Ethereum’s account-based system.

As such, bringing USDT back to Bitcoin is a core motivation for UTEXO. Viktor minced no words on the matter: “For the first time in eight years or nine years, USDT is coming back home. We have no chance to fail. If we fail, no one will think about Bitcoin as a settlement layer anymore.”

USDT on Bitcoin via RGB is expected to be launched within weeks, possibly this July, with wallets like Tether Wallet among others announcing support, and exchanges across the world announcing integrations. 

This post USDT Returns to Bitcoin: RGB and UTEXO Enable Private Lightning Settlements first appeared on Bitcoin Magazine and is written by Juan Galt.