- Buy Crypto
- Markets
Futures- Spot
- Copy Trade
- Earn
- More
Coinbase reveals x402 protocol to enable on-chain payments via HTTP
By: cryptoslate|2025/05/07 05:30:01
0
Share
Coinbase unveiled an open-source protocol for on-chain payments via HTTP called x402. Announced on May 6, the system repurposes the previously unused HTTP 402 “Payment Required” status code to support direct machine-native payments using stablecoins.The protocol enables autonomous agents and applications to pay for API access, data, and services without relying on human intervention, subscriptions, or traditional payment infrastructures.Business models and use casesThe core design of x402 enables a server to issue an HTTP 402 response with payment instructions when a client requests a paid resource. Upon receiving the payment requirement, the client, whether a human user or an autonomous agent, can initiate an on-chain transaction and retry the request with a signed payment. This architecture enables microtransactions for content access, context retrieval, and AI inference, making per-use monetization technically feasible and economically viable. x402 is currently available as an open standard with a reference implementation on Coinbase’s GitHub and developer site. According to the exchange, it will open the roadmap for community contributions and decentralized governance in upcoming iterations.The x402 design supports frictionless micropayments across various sectors. In practical terms, AI agents can pay for API access per call, monetize content per article or stream, and sell cloud computing resources by the second or gigabyte. The project’s white paper describes real-world use cases, including per-play gaming models, per-inference AI services, and per-article paywalls for publishers.The protocol also aims to simplify compliance and operational burdens by eliminating the need for PCI certification and exposure to chargebacks. Once confirmed on-chain, all transactions are final, and payment processing is entirely decentralized.Autonomous transactionsAccording to the project’s white paper, x402 addresses long-standing inefficiencies in existing payment systems that rely on account-based setups, delayed settlement, and centralized control. Traditional payment methods such as ACH and credit cards introduce latency, chargeback risk, and human-driven onboarding steps, all incompatible with machine-to-machine (M2M) applications or autonomous AI workflows.By contrast, x402 enables low-latency, irreversible payments with settlement times averaging 200 milliseconds when deployed on rollups. The protocol executes payments using stablecoins, with a chain-agnostic design that allows support for multiple blockchains and tokens. Additionally, x402 facilitates real-time revenue collection through client-server communication that directly integrates signed payments into HTTP requests, eliminating the need for API keys, pre-registration, or manual invoicing.Developer integrationThe x402 protocol supports a JSON payment request format embedded in the HTTP 402 response. To prevent replay attacks, the server specifies payment details, including the recipient wallet address, network identifier, asset contract address, payment expiration, and a nonce.Clients respond by signing a payment authorization using the EIP-712 standard, which is broadcast on-chain to complete the transaction.EIP-712 defines a framework for structuring, hashing, and signing typed data. It aims to make data signing on Ethereum more human-readable and verifiable. Coinbase provides middleware libraries for Node.js and browser environments, allowing integration with one line of code. The x402 structure also uses wallet interfaces to confirm payments, providing complete transparency into the transaction’s cost, asset, and destination.Developers can access testing environments with mock APIs and wallets and support for batched settlements, layer-2 blockchains, and payment channels.It proposes a foundational change to how internet services interact with money by presenting on-chain payments via HTTP.The post Coinbase reveals x402 protocol to enable on-chain payments via HTTP appeared first on CryptoSlate.
You may also like
Dune Stablecoin Research: The Flow and Demand of a $300 Billion Market
In the dataset, transfers are no longer simply labeled as pure "transaction volume," but are classified as different on-chain activities. This is the difference between "just knowing that $100 trillion has been transferred" and "understanding why it was transferred."
Stripe Annual Letter: New cognitive density is extremely high, especially the 5-level model of "AI + Payments"
Every trend here is affecting everyone's future survival.
Sam Altman's Twenty-Four Hours: The Pentagon said "no" twice, but only one was serious
In Silicon Valley, Altman's sub-12-hour move has a name. It's not called backstabbing, it's called timing.
The US-Iran Conflict Spreads to the Crypto Space: What to Expect in the Market on Monday
The most important industry in the crypto world, only 300 kilometers away from the missile's impact point
Lily Liu, the chair of the Solana Foundation, shouted "Don't waste time on crypto," is the crypto industry really dead?
The interest of the younger generation is shifting from cryptocurrency to the field of artificial intelligence, which coincides with the current phenomenon in the cryptocurrency industry.
The little deer live by the water and grass
Mining companies have never been the most devout believers in Bitcoin. Under the pressures of halving compressing profits, financial reports showing revenue growth without profit increase, and coin prices falling below mining costs, the industry is collectively de-risking.
The world belongs to Chinese people who speak English
The world is vast, and only playing half of it is truly a loss.
Why Stop at 126K? Michael Saylor Breaks Down BTC Stagnation and Retail Absence Truth
Bitcoin is digital capital, and I will spend a thousand hours explaining it to you. Eventually, you will understand, but you will still have to endure a 45% crash.
Virtuals Protocol's inaugural Titan project: ROBO aims to give a wallet to a robot
This is a key step in Virtuals expanding the Agent Economy into the Embodied AI and Robotics field.
Stablecoin Latest Report: Actual Distribution and Circulation Much More Notable Than Supply
The Truth about Stablecoin Circulation Speed, Concentration, and Structure After Doubling the Supply
Paradigm's New Arithmetic: When Crypto Can't Hold 12.7 Billion, AI Becomes the Answer
It took Paradigm three years to emerge from the ruins of FTX.
Wintermute Founder: In the Lost Cryptocurrency Market, What Can We Still Do?
This is more like a manifesto, discussing "the very reason we are here."
$1.3 Billion Debt: BitDeer Faces Tough Battle
Wu Jihan is waiting for AI's money to catch up with the speed of debt.
Anthropic's IPO Gamble: At the Most Unlikely Moment, It Chose to Say No
In the AI Era, what is the most valuable thing?
Paradigm's Math Problem: $12.7 Billion, Too Big for a Single Crypto Fund
Emerging from the ruins of FTX, Paradigm took three years
Ethereum Unveils Scaling Roadmap, What's Different This Time?
Short-term improvements to execution efficiency through the Gas mechanism optimization and block validation parallelization, and long-term scalability through ZK-EVM and blobs data architecture.
Anthropic Ban Wave, OpenAI $100 Billion Funding Controversy: What Is the Overseas Crypto Community Talking About Today?
What Have Foreigners Been Most Interested in Over the Last 24 Hours?
Morning News | OpenAI receives $110 billion investment; Solana launches Solana Payments; M0, MoonPay, and PayPal jointly launch PYUSDx
Overview of Important Market Events on February 27
Dune Stablecoin Research: The Flow and Demand of a $300 Billion Market
In the dataset, transfers are no longer simply labeled as pure "transaction volume," but are classified as different on-chain activities. This is the difference between "just knowing that $100 trillion has been transferred" and "understanding why it was transferred."
Stripe Annual Letter: New cognitive density is extremely high, especially the 5-level model of "AI + Payments"
Every trend here is affecting everyone's future survival.
Sam Altman's Twenty-Four Hours: The Pentagon said "no" twice, but only one was serious
In Silicon Valley, Altman's sub-12-hour move has a name. It's not called backstabbing, it's called timing.
The US-Iran Conflict Spreads to the Crypto Space: What to Expect in the Market on Monday
The most important industry in the crypto world, only 300 kilometers away from the missile's impact point
Lily Liu, the chair of the Solana Foundation, shouted "Don't waste time on crypto," is the crypto industry really dead?
The interest of the younger generation is shifting from cryptocurrency to the field of artificial intelligence, which coincides with the current phenomenon in the cryptocurrency industry.
The little deer live by the water and grass
Mining companies have never been the most devout believers in Bitcoin. Under the pressures of halving compressing profits, financial reports showing revenue growth without profit increase, and coin prices falling below mining costs, the industry is collectively de-risking.
App