x402 lets one program pay another a few cents per request in USDC. This board takes Base’s largest x402 sellers by 7-day volume (x402scan’s ranking) and runs each through ChainWard’s seller check: for its top 30 buyers, we follow each one’s largest funder back up to four hops and see whether the trail reaches the seller. Volume and buyer counts say how much moved. This says whose money it was.
| # | Seller (x402scan label) | 7-day volume · buyers | Verdict | Top buyers tracing back to seller | Share of their volume | Sent back to buyers | Largest common funder | Signals | Fresh check |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 0xc7c6…c4ff | $232,282 114 buyers | MixedNo checked buyer traces back to this address, but one wallet funds most of the top buyers checked. | 0/30 | 0% | 0% | 70% of buyers | One wallet funds most checked buyers | |
| 2 | console.ax1.vc 0x7284…299c | $13,226 2,668 buyers | Real demandNone of the 30 top buyers checked traces back to this address within 4 hops, and it sent nothing back to them. | 3/30 · 4 hops | 13% | 0% | 10% of buyers | none raised | |
| 3 | x402.dtelecom.org 0x47d3…9dda | $8,765 25 buyers | MixedNo checked buyer traces back to this address, but one wallet funds most of the top buyers checked. | 0/26 | 0% | 0% | 96% of buyers | One wallet funds most checked buyers | |
| 4 | 0xe3b9…5cf5 | $5,300 1 buyers | Not enough dataOnly 1 buyer could be checked in the last 30 days. | 0/1 | 0% | 0% | 100% of buyers | One buyer dominates | |
| 5 | 0x371d…ad4b | $3,281 5 buyers | Self-funded demand6 of 7 top buyers checked trace back to this address within 2 hops (98% of their volume). | 6/7 · 1–2 hops payers behind Meridian: 5, all funded by the seller | 98% | 98% | 43% of buyers | Most checked buyers' stablecoins trace back to this addressSends stablecoins back to its own buyers | |
| 6 | 0x5996…f39e | $3,211 3 buyers | Not enough data63% of inflow arrived through facilitator proxies whose payers could not be named. | 0/8 63% arrives via a proxy or exchange; payers behind it not traced | 0% | 0% | 38% of buyers | none raised | |
| 7 | 0x593c…4c89 | $3,174 5 buyers | Self-funded demand6 of 7 top buyers checked trace back to this address within 2 hops (98% of their volume). | 6/7 · 1–2 hops payers behind Meridian: 5, all funded by the seller | 98% | 98% | 29% of buyers | Most checked buyers' stablecoins trace back to this addressSends stablecoins back to its own buyers | |
| 8 | 0x1cec…8dd4 | $3,089 5 buyers | Self-funded demand8 of 9 top buyers checked trace back to this address within 1 hop (98% of their volume). | 8/9 · 1 hop payers behind Meridian: 8, all funded by the seller | 98% | 100% | 33% of buyers | Most checked buyers' stablecoins trace back to this addressSends stablecoins back to its own buyers | |
| 9 | 0xa6a9…809d | $3,067 5 buyers | Self-funded demand8 of 9 top buyers checked trace back to this address within 1 hop (98% of their volume). | 8/9 · 1 hop payers behind Meridian: 8, all funded by the seller | 98% | 100% | 44% of buyers | Most checked buyers' stablecoins trace back to this addressSends stablecoins back to its own buyers | |
| 10 | 0x752f…e6a4 | $2,941 5 buyers | Self-funded demand6 of 7 top buyers checked trace back to this address within 2 hops (98% of their volume). | 6/7 · 1–2 hops payers behind Meridian: 5, all funded by the seller | 98% | 98% | 43% of buyers | Most checked buyers' stablecoins trace back to this addressSends stablecoins back to its own buyers | |
| 11 | 0x4754…327b | $2,915 5 buyers | Self-funded demand8 of 9 top buyers checked trace back to this address within 1 hop (98% of their volume). | 8/9 · 1 hop payers behind Meridian: 8, all funded by the seller | 98% | 99% | 56% of buyers | Most checked buyers' stablecoins trace back to this addressSends stablecoins back to its own buyers | |
| 12 | 0x32bc…9008 | $2,531 28 buyers | Real demandNone of the 30 top buyers checked traces back to this address within 4 hops, and it sent nothing back to them. | 0/30 | 0% | 0% | 20% of buyers | none raised | |
| 13 | 0xc220…774e | $2,002 1 buyers | Self-funded demand1 of 2 top buyers checked trace back to this address within 1 hop (100% of their volume). | 1/2 · 1 hop payers behind Meridian: 1, all funded by the seller | 100% | 100% | 50% of buyers | Most checked buyers' stablecoins trace back to this addressSends stablecoins back to its own buyersOne buyer dominates | |
| 14 | 0x8bc2…3c8c | $1,978 2 buyers | Not enough data100% of inflow arrived through facilitator proxies whose payers could not be named. | none checked 100% arrives via a proxy or exchange; payers behind it not traced | n/a | n/a | none | none raised | |
| 15 | 0x85b4…627c | $1,843 2 buyers | Not enough dataOnly 2 buyers could be checked in the last 30 days. | 0/2 | 0% | 0% | 100% of buyers | One buyer dominates | |
| 16 | x402.clashofcoins.com 0x2588…db63 | $1,231 68 buyers | Real demandNone of the 30 top buyers checked traces back to this address within 4 hops, and it sent nothing back to them. | 0/30 | 0% | 0% | 27% of buyers | none raised | |
| 17 | laso.finance 0x3291…2b37 | $574 25 buyers | check did not complete this week | ||||||
| 18 | api.zerion.io 0xd07c…acc6 | $567 10 buyers | MixedNo checked buyer traces back to this address, but one buyer is most of the inflow. | 0/5 | 0% | 0% | 40% of buyers | One buyer dominates | |
| 19 | 0x4fbd…e25a | $500 1 buyers | Not enough dataOnly 1 buyer could be checked in the last 30 days. | 0/1 | 0% | 0% | 100% of buyers | One buyer dominates | |
| 20 | api.venice.ai 0x2670…293f | $485 12 buyers | Real demandNone of the 30 top buyers checked traces back to this address within 4 hops, and it sent nothing back to them. | 0/30 | 0% | 0% | 17% of buyers | none raised | |
Top buyers tracing back to seller: of the seller’s 30 largest buyers in the last 30 days, how many reach the seller’s own address by following their largest funder (at most four hops, stopping at exchanges and other high-throughput hubs; a busy wallet that got most of its money from the seller, such as a second payTo (the address a seller tells x402 buyers to pay), counts as the seller’s). A seller whose revenue funds its buyers can show any buyer count; this column shows how much of it does. Payments delivered by a facilitator proxy (Meridian, Fluxa) count as their real payer’s: x402scan names the payer and the chain confirms it on a sample of receipts. Payments through an exchange or another high-throughput address are not counted as buyers, and the payers behind them are not traced. Sent back to buyers: USDC the seller transferred to its own buyers, as a share of what it received. Largest common funder: the share of top buyers whose largest funder is the same wallet, which can be an app seeding its users’ wallets.
Rankings, 7-day volume and buyer counts are x402scan’s public figures; labels are x402scan’s origin labels, not ownership claims. Funding is read from Base via Alchemy. The board describes where USDC moved, never why, and a common funder can be a legitimate faucet, exchange or custodian. The verdict is on the demand the check could see within its limits, not on the project or the people behind it. The method and worked cases are in the x402-on-Base decode.
Before your agent pays an x402 seller, run the same check on its payTo: GET api.chainward.ai/api/risk/seller-demand?address=0x…, 0.10 USDC over x402, not charged if the check fails. For a seller on the board, the button on its row runs it from your wallet. More on ChainWard’s checks.