Facilitator Trust Registry

Public trust scores for x402 payment facilitators. Each score is computed from on-chain deployment age, transaction volume, contract verification, compliance declarations, and 7-day uptime monitoring. No LLM in the scoring path.

High Trust (70–100)
Moderate (40–69)
Low Trust (0–39)
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Embed a trust badge

Add a trust badge to your README, docs, or website. The badge auto-updates as scores are recalculated. Works anywhere that renders images — GitHub, Notion, npm, and more. 


![Trust Badge](https://api.smart402.com/registry/badge/YOUR_ADDRESS.svg)


<img src="https://api.smart402.com/registry/badge/YOUR_ADDRESS.svg"
     alt="smart402 Trust Badge" height="56" />

Frequently asked questions

How are trust scores calculated?

Five signals, each worth a defined number of points out of 100. Deployment age, transaction volume, and contract verification come from public on-chain data. Compliance declarations come from probing the facilitator's /supported endpoint. Uptime is measured by hourly pings over a rolling 7-day window. The formula is deterministic. No LLM in the scoring path. Full details at the methodology endpoint.

Can I reproduce a facilitator's score?

Yes. The complete scoring formula, including every threshold and point value, is published as machine-readable JSON at GET /registry/methodology. Three signals come from public on-chain data (deployment age, volume, contract verification via Permit2 proxies). Two come from live monitoring of facilitator endpoints (compliance declarations and uptime). All sources and thresholds are documented. Pull the same data, apply the same formula, get the same number.

How do I add the trust badge to my docs?

Copy the one-line embed code from the Embed a trust badge section above. Replace YOUR_ADDRESS with the facilitator's address. Works anywhere that renders images: GitHub READMEs, Notion, npm package pages, docs sites. The badge auto-updates as scores are recalculated.

What is smart402?

A deterministic policy engine for AI agent payments via the x402 protocol. Agents propose a payment, smart402 returns approve or deny based on rules you define. No LLM in the decision path. The Facilitator Trust Registry is one layer of the trust infrastructure we provide for the x402 ecosystem. Learn more at smart402.com.