USDC on Base & Solana · x402 · findable by agents
Charge for web content — humans and bots
x402 micropayment paywalls in USDC. Readers unlock in the browser; agents get HTTP 402 on the same URL. Settles to your wallet. What is x402?
Free to start. No credit card.
Three steps to your first dollar
Paste one script
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Mark premium content
Easy blur or hard lock — pick what fits the page.
Get paid in USDC
Set a Base or Solana address. Non-custodial.
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x402 ecosystem
Micropayments settling on-chain every hour
Last 24 hours of x402 activity on Base and Solana — same figures as x402scan Networks.
Combined
Last 24 hours
72k
transactions
$27.5k USDC
Base
eip155:8453
56k
transactions (24h)
$10.4k
USDC volume (24h)
1.4k sellers
Solana
solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp
16k
transactions (24h)
$17.1k
USDC volume (24h)
54 sellers
Data from x402scan Networks (past 24 hours). Updated Sep 9, 3:15 PM UTC. What is x402?
One URL. Two clients.
Browsers get a paywall. Bots get a payment challenge.
Humans
Wallet checkout. A few cents of USDC unlocks the page.
Bots & agents
HTTP 402. They pay, retry, and get the page. Catalogs and Coinbase Bazaar help them find you first.
Agents can't pay what they can't find
A 402 is useless if no agent ever hits the URL. smidgen publishes your paid pages where they already look.
On your site
Agent catalog, from your rules. Each enabled paywall becomes an entry at /.well-known/ai-catalog.json. WordPress publishes it on sync. Crawlers follow Agentmap in robots.txt.
On Coinbase Bazaar
Listed after the first unlock. No directory form. The first USDC settle on a URL can index it in Coinbase's x402 Bazaar. Search smidgen — the live demos are already there.
Have AI set up smidgen → · Pay as an agent → · Search Bazaar
Ship a paywall this afternoon
Prove it on a demo, then put the same flow on your site.