quietArc · eip155:5042
wicket
The settlement gate on Arc.
On Arc, software pays software — a fraction of a cent at a time, thousands of times a day. Wicket reads every block and shows you each of those payments: who paid, who was paid, and which service carried it across.
Free to browse. No account, no API key. New to x402? Start here →
● 0 settles in the last 24h · 0 facilitators watched · 402 → 200
upgrading
The network numbers are paused while we upgrade the database
The explorer reads every x402 settlement on Arc into one index. That index is being moved to a bigger plan after two outages this week, both caused by the same thing: every page rebuilt its totals by scanning the whole table, and the table has passed a hundred thousand rows.
The fix is to precompute the totals instead of recomputing them per visit. Until that lands, these panels stay empty rather than showing you a number we cannot stand behind.
How x402 works
402 → 200four steps, under a second
The facilitator is the only party that touches the chain. That is the gate Wicket is named after — and the step nobody was watching.
- GET1/4An agent calls a paid APINo key, no account — just a request.
- 4022/4The server answers 402Payment Required, plus the price and where to pay.
- SIG3/4The agent signs, not sendsAn EIP-3009 authorization over USDC. No gas, no transaction yet.
- 2004/4A facilitator settles itIt broadcasts the authorization on Arc and pays the gas. The API returns the data.
Start here
Three ways in, depending on why you came
New hereLearn what x402 isThe payment flow, the role of a facilitator, and every term used on this site — explained without jargon.Read the primer →Just the dataOpen the explorerLive feed, rankings, heatmap and value scatter. Filters live in the URL, so any view you build is a link you can send.Browse the chain →Building somethingUse the APIFour JSON endpoints over the same data, open CORS, no account and no key. An OpenAPI file if you prefer generated clients.See the reference →
What Wicket is building
Three pieces, one gate
live
Explorer
Every settle on Arc, grouped by the wallet that broadcast it. Rankings by count and by value, live feed, open JSON API. No registration, no API key, free.
Open the explorer →live
Hardened facilitator
An x402 facilitator that closes four of the holes two published papers found: revert-grant, nonce races, denial-of-settlement, and draining a zero-fee gas wallet. Every fix ships with a test that reproduces the attack. The one hole we did not close is named on the page, with the reason.
Open the facilitator →soon
Where this goes next
Arc is where the detection rule works, and it stays. But Solana carries most of x402 by a wide margin, and that is where the work is heading. What that becomes is not an index — settlements there cannot be detected the way they are here — and we will describe it when it is built rather than before.
Why the difference matters →What's next
Shipped, and shipping
No dates promised. Each line moves only when it is live on-chain.
- ✓Explorer liveIndexing every Arc block since mainnet. Public since 16 September 2026.
- ✓Hardened facilitatorLive at facilitator.wicketworld.xyz. No fee, we pay the gas. Balance, spend budget and unfixed holes all published.
- ○Settler badgePay 0.05 USDC through Wicket over x402, land on the Settlers board.