x402 v2 · Base Sepolia · simulated wallet & facilitator

crawl402 Playground

Send a request to a demo news site as a crawler, read the 402 payment headers it returns, sign a simulated USDC payment, and retry to unlock the article. Every decision comes from the real crawl402 engine running in this page, with the in-memory sandbox from crawl402/testing standing in for the wallet and facilitator.

Ready
Choose who is requesting, then send the request in step 1.
1

Request the pageCrawler → site

not sent
2

Sign the paymentCrawler's wallet, offline

waiting
3

Retry with paymentCrawler → site → facilitator

waiting

Ledger

0.000000Site wallet earned (USDC)
0Paid page views
0Requests answered with 402
TimeClientPathStatusAmountTransaction
No requests yet.