What x402 actually does Explained in very simple terms: x402 brings payments directly into HTTP. Meaning: A website, API, or agent can say: “This costs $0.01 USDC. Pay to continue.” Your browser or AI agent pays instantly. Just: request → pay → receive. Money moves like a web request. Internet + native payments. It’s not a new blockchain. Just using the rails we already use every day: HTTP. And behind it, there’s one person you should know: Erik Reppel. Who he is: • Canadian, ~29 • Grew up in Port Moody, British Columbia • Studied Software Engineering at the University of Victoria • Won Hack The North, the biggest hackathon in Canada • Moved to San Francisco • Spent years building ML systems inside Coinbase • Built the data + infrastructure layer at Zora • Briefly worked at Clubhouse during its peak • Returned to Coinbase in 2025 as Head of Engineering for the Developer Platform The internet is going from humans clicking pages to agents doing tasks for us: • Research agents • Shopping agents • Data-fetching bots • AI assistants that call APIs • Autonomous workflows talking to each other These agents need to pay for things: • Data • Compute • Storage • Tools • Premium endpoints • Other agents But agents cannot: • Enter credit card details • Create accounts • Pass KYC • Confirm payments manually They need to pay programmatically. Instantly. Safely. Without friction. x402 is exactly for this moment. Who already integrated it • Cloudflare → integrated into their global network (78M+ requests/sec) • Google → if Google agents call an API, they can settle with USDC on Base/Solana • Visa → x402 used for settlement Real usage (not theory) Right now it’s already being used for: • Paying $0.01 to fetch Farcaster data through Neynar • Paying per scrape request on Firecrawl • Storing and retrieving media on Pinata with no account • AI agents buying compute in small increments • Content unlocks directly in the browser • Micro-APIs that charge fractions of a cent How Erik thinks: “Value should move across the internet as easily as information.” He believes: • The future internet is machine-native • Agents will transact with each other • Subscriptions are inefficient • Static pricing breaks when machines negotiate • Web needs a stable, neutral, open payment standard Maybe we’re seeing the beginning of a new era in crypto: AI Agents that can pay. What do you think?

Oct 25, 2025 · 3:00 PM UTC

This thread is sponsored by @yeet We’re giving away $100 every day just use my referral and drop a funny comment below. yeet.com/register?aff=StarPl…
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Replying to @StarPlatinumSOL
I don't understand how it is getting hot instantly in one day if this was something already available without any big news, whats the behind story there Star, except Coinbase pushing the marketing funnel? Is there something else?
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Money flowing, some big traders starting to get interested and people starts to look at it, tbh even when I find it interesting and even early, idk if this will last looking at hoe fast people changes the topics in this space
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Replying to @StarPlatinumSOL
here is a bit of more explanation
Back in the early 90s, the internet was built with a secret payment button that no one ever pressed. It was called HTTP 402 = “Payment Required.” For decades, it sat unused. Then, just a while ago, @Coinbase and @Cloudflare decided to bring it back to life. It’s an open-source payment protocol that activates that old “402” button. Instead of signing up, logins, or API keys, websites, and AI agents can now request and receive payments directly over the web,just like sending data. It's like adding a “Pay Now” feature to the internet. When a user or AI sends a request (for example, to access an API or download a dataset), the server can now respond with a 402 message : “Sure, but this service costs 1 USDC.” Once the 1 $USDC has been paid, the service will be instantly unlocked. ➫ 𝗦𝘁𝗲𝗽 𝗯𝘆 𝗦𝘁𝗲𝗽 𝗕𝗿𝗲𝗮𝗸𝗱𝗼𝘄𝗻 1 > You make a request. 2 > The server replies with a 402 payment request. 3 > Your wallet or AI agent pays automatically using stablecoins like USDC. 4 > The server verifies the transaction and grants access. No signups or logins. No middlemen. Just native payments running through HTTP. It’s already gaining traction fast. Coinbase, Cloudflare, and Google are backing it. Chains like Base, Solana, and Sei are integrating it. AI agents on platforms like Peaq and Daydreams are using it to buy compute, data, or storage in real time. ➫ 𝗧𝗵𝗲 𝗕𝗶𝗴𝗴𝗲𝗿 𝗣𝗶𝗰𝘁𝘂𝗿𝗲 x402 turns the web into a payable network, where value moves as easily as information. This is a massive opportunity for the “agent economy,” because now these AI systems can transact, collaborate, and build businesses on their own. x402 might be the first step toward the autonomous web, a web where machines can now pay for services.
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Thanks for the addition!!
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Replying to @StarPlatinumSOL
That’s actually insanely useful
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I’m still learning but I’m really finding it interesting
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Replying to @StarPlatinumSOL
very well detailed and simplified
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Thank you brother!
Replying to @StarPlatinumSOL
Kinda like this new meta
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We will see hope to not see much crime
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Replying to @StarPlatinumSOL
been looking for someone to actually explain it
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Replying to @StarPlatinumSOL
good post, man
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Thank you so much!!
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Replying to @StarPlatinumSOL
Web2 meets Web3 seamlessly. Gamechanger.
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Good ai reply ser
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Replying to @StarPlatinumSOL
At this point, I should be the one calling you 'Sifu' Very interesting and enlightening post
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Kung fu panda reference???
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Replying to @StarPlatinumSOL
link? where do i check
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Where do you check what
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Replying to @StarPlatinumSOL
This is how the internet is supposed to work.
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Replying to @StarPlatinumSOL
Loky now supports x402 so agents can query on-chain analytics with no API keys, just wallets. Read more below
Loky AI now supports @coinbase's x402 open payment standard for AI-native API access We're enabling AI agents and crypto wallets to access on-chain analytics seamlessly, with zero API keys and built-in wallet-based payments. Why this matters: > No API keys or credential management > Cryptographic authentication via wallet signatures > Pay-per-call metering with on-chain settlements > Direct AI agent access to Loky AI Intelligence Suite How it works: > Agent requests data from Loky AI > Receives 402 payment challenge if required > Completes payment with x402 wallet (Coinbase Smart Wallet, Virtuals, etc.) > Retries with cryptographic proof > Gets verified on-chain insights instantly Perfect for autonomous agents, dApps, and @virtuals_io ACP integrations that need dynamic, authenticated access to blockchain data. Example: An AI agent analyzing $LOKY, $SANTA, $AURA, liquidity can now call our APIs directly through its wallet identity no backend configs, no shared secrets. The future of API access is crypto-native, stateless, and agent-ready. Read more: docs.dapplooker.com/data-api…
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Replying to @StarPlatinumSOL
thanks for featuring my market map :)
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Replying to @StarPlatinumSOL
So basically x402 turns the web into a pay-as-you-go network for data and services?
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Replying to @StarPlatinumSOL
Thanks for explaining
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