x402 Trust
x402 Trust is a service that publishes scores for x402 endpoints. Its own site describes it as monitoring listed x402 services with probes, checks of the payment envelope, price history and on-chain settlement volume, and as offering a grade for any endpoint.
Its site describes a score and a letter grade for each endpoint, computed from how the endpoint answers probes, whether its payment challenge is well formed, how its price and pay-to address have changed, and the settlement activity seen on chain. A grade is offered without charge, and a fuller breakdown is sold per call over x402.
It also publishes a table of facilitators. Its stated method is to count every transfer of USDC whose transaction sender is a known facilitator settler address, and to sum the volume by day.
A settlement register is a public table that attributes on-chain payments to the facilitators that submitted them and publishes a total for each. This is one.
probe402 lists it among the graders whose payments would not count as demand.
→ probe402 quotes the totals this register published, with their date and source, in this issue of the Machine Commerce Reality Index.
Sources
Related x402 List · x402scan · facilitator · settlement