Why x402 numbers differ
Reported totals for x402 payments in the same month ranged from $24 million to $1.6 million. Trackers count different things: which payments, on which chains, over which days, and what they take out. In the 30 days to 9 Nov 2026, AI agents paid $1,604,979 on-chain over x402 and MPP by our count, and $546,090 of it (34%) counted toward the ranking.
What was reported
| Source | Number | Days | What it counts, as published |
|---|---|---|---|
| x402.org, cited by Bloomberg | $24 million | 30 days, reported 12 Mar 2026 | Payments settled over x402. No method was given with the figure. |
| Allium | About $3 million | The same 30 days | x402 payments in its on-chain data. Its table's notes describe no filter for wash trading or self-payments. |
| Artemis analyst OnchainLu | $1.6 million | The same 30 days | What's left after removing wallets that pay themselves or move money in loops. |
| Visa and Artemis | $19 million, adjusted | Not stated | Adjusted spending, about 90% of it from roughly 4,000 wallets. The article doesn't say what was removed. |
| x402watch | 48.9% of volume "real" | 30 days, page of 2 May 2026 | Leaves out self-tests, developer traffic and suspected wash trading, by a method it publishes. |
| Agent Charts | $2,765,213 paid on-chain, $2,240,230 counted | The four weeks to 8 Mar 2026, the closest weeks to the figures above | Everything below, under today's rules. |
| Agent Charts | $1,604,979 paid on-chain, $546,090 counted | 30 days to 9 Nov 2026 | x402 on Base and Solana and MPP on Tempo; what's removed is in How the ranking works. |
Why they differ
- Which payments count as x402. A tracker starts from a list of facilitators, the services that settle x402 payments, and counts the transfers they send. The lists differ, and so do the coins counted. Ours started from x402scan's list; these are the facilitators we follow.
- Which chains. x402 runs on several chains. Some totals add them all up, some take one. We read Base and Solana, and MPP payments on Tempo.
- Which days. 30 days, a year, or everything since x402 started in May 2025, and which 30 days: since the week to 11 Jan 2026, the money paid on-chain in a week ranged from $82,525to $978,245 by our count.
- The same dollar counted twice. A payment that passes through a middleman account shows up as two transfers. We count it once.
- What's taken out. Some totals take out nothing. Others remove wallets paying themselves, money moving in loops or test payments. We remove those, money to sellers with fewer than 10 buyers, and sellers removed after a review, and we show every dollar removed and why.
How to compare two numbers
Ask which days, which chains, and what was taken out. Our "paid on-chain" is closest to totals that take nothing out, and "counted" to filtered ones. To quote ours, see Cite Agent Charts.