The internet just got a payment layer. After 30 years, HTTP 402 “Payment Required” is finally alive. Now called x402, a crypto-native protocol for micropayments that can turn every API call into a transaction.
Built by
@CoinbaseDev and backed by Coinbase, Cloudflare & Base, x402 enables AI agents to pay autonomously, opening a new frontier for agentic commerce. Think of AI systems that can:
•Query APIs & access data
•Trade tokens autonomously
•Purchase content or services
•Handle micro-payments without human approval
Stablecoins like USDC are expected to dominate, and NeoBanks, PayPal, Visa, and Mastercard are already preparing for AI agent wallets. The infrastructure is ready for trillions in autonomous transactions, projected by
@a16zcrypto to hit $30T by 2030.
x402 solves the old friction of tiny payments of card fees of ~2.9% $0.30 per transaction are replaced by sub-$0.0001 fees, enabling truly permissionless microtransactions and direct payments for creators, apps, and AI services.
Tokens and projects leveraging x402 (like
@virtuals_io,
@heurist_ai,
@pingobserver) are starting to see explosive growth, but the real innovation is the protocol itself — a programmable payment layer powering the next generation of the web.
The takeaway: x402 isn’t hype, it’s the start of a self-paying internet. Every agent can now earn, hold, and spend value autonomously. If you’re building for the future of AI Web3, this is the layer you need to understand.
#x402 #AIagents #Web3 #Micropayments #Crypto #ProgrammableInternet
x402 just gave the internet a payment layer.
After 30 years of dormancy, HTTP 402 "Payment Required" is now active, turning a forgotten web standard into crypto infrastructure for instant micropayments.
A short thread on why x402 matters and how it’s changing AI and the future of the web 🧵