x402 payments on Base, by facilitator

(one at the start of each hour; 10% of the day's 43200 blocks) are read: every USDC (0x833589fcd6edb6e08f4c7c32d4f71b54bda02913) AuthorizationUsed log in them, then each of those transactions. A transaction whose sender is on the facilitator list counts for that facilitator; the rest are one row, facilitator "(unlisted)", so the share the list misses is visible. Fields: sampled_blocks and sampled_txs are what was read; est_daily_txs and est_daily_usdc scale the sample to the day (estimates, not totals); usdc_sampled, median_usdc, payers, payees and self_pay_txs (a wallet paying itself) come from the transfers decoded from the call, decoded_txs of them (a payment routed through a facilitator's own contract is counted but not decoded). Raw volume is not demand: analysts have put self-dealing and test payments at half or more of x402's raw volume (CoinDesk, 2026-03-11, citing Artemis), so read payers, payees and self_pay_txs with the totals. Not covered: other chains, the Permit2 path (x402ExactPermit2Proxy, little used on Base at the time of writing), facilitators missing from the list. Sources: Base mainnet over a public RPC (base-rpc.publicnode.com); the facilitator list is x402scan's (github.com/Merit-Systems/x402scan, packages/external/facilitators, MIT License, commit 5732bb83c8c4), 128 Base addresses of 30 facilitators. License: the WITAN Standard License covers this compilation — the sampling, the grouping and the records as arranged here; the chain data is public, and the facilitator list's MIT notice applies to the names and addresses taken from it.