x402 service changes

Across the whole directory, x402 List has detected 1,045 payout address rotations and 1,877 price moves on the x402 wire in the last 90 days. Schema changes are listed below, not counted here.

What moved on the x402 wire. We fingerprint the full accepts[] on every probe, so a payout address rotation at an unchanged price shows up here even when nothing else moves. Newest first, last 90 days.

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Showing changes for butterfly-delta-preflight only. show all services

Observed x402 service changes. Event timestamps are UTC.

Time (UTC)	Service	Change	Evidence
64d ago2026-08-21 00:14 UTC	Butterfly Delta Order Preflight	schema changed	proof what moved endpoint added POST /api/agent/order-preflight schema added POST /api/agent/order-preflight exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 60 {"assetTransferMethod":"eip3009","name":"USD Coin","version":"2"}

Measurement methodology

Page snapshot as of 2026-10-23 14:08 UTC.

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