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breaking: x402, the pay-as-you-go web solution, thrives post-PING despite token focus shift 🚀🔥💸
x402’s persistence post-PING highlights the enduring utility of per-request charging in online transactions. The symbiotic relationship between Coinbase’s protocol and Cloudflare
Key points to remember: 📝
– x402 enables pay-as-you-go functionality online.
– Infrastructure is driven by Coinbase and Cloudflare.
– PING introduced x402 but the focus is on protocol adoption, not the token.
– Test by starting an endpoint and checking the 402 flow → payment → grant.
X402 enables pay-as-you-go online. When accessing an API or paid file, the server responds with “402 Payment Required,” indicating the price in USDC. You make an on-chain payment, retry the request, and get the result without needing an account or API key.
# The “second wave” of x402 🌊
The concept isn’t new but gained practicality in 2025 with Coinbase’s protocol (“x402”). Cloudflare then formalized the standard, supporting mainstream tools. PING initially highlighted x402 but the enduring impact is the protocol’s utility for per-request charging without accounts.
Why x402 didn’t disappear after PING: pay-as-you-go for the web
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