Skip to main content

HCS-25 (Adapter): Ethos Credibility (Informative)

PurposeDirect link to Purpose​

Convert a provider-specific reputation score (Ethos) into a bounded trust contribution.

ContributionDirect link to Contribution​

  • Adapter id: ethos
  • Contribution mode: universal
  • Suggested weight: 1
  • Typical applicability: ecosystems where a stable identity can be mapped into the reputation system
  • Typical exclusions: ecosystems where identity mapping is not defined or is expected to be missing (e.g., model catalogs like openrouter/near-ai, and mailbox-based ecosystems like agentverse/uagent)

Inputs (reference)Direct link to Inputs (reference)​

Signal fields are stored in subject.metadata (see ../signals/ethos.md), notably:

  • ethosComposite.score (preferred) or ethosScore

Output componentsDirect link to Output components​

  • ethos.score in [0,100]

Normalization (reference)Direct link to Normalization (reference)​

The reference adapter maps a raw Ethos score into [0,100] using:

  • a configured baseline and max (baselineScore, maxScore), and
  • a configured maximum contribution budget (maxContribution).

Production example (Registry Broker; informative)Direct link to Production example (Registry Broker; informative)​

  • Endpoint: https://hol.org/registry/api/v1/agents/{uaid}
  • Example UAID: uaid:aid:4qS5GF2qowqjepLFNJx4jqvCHGuJ2ejHw6hXWuxpr19bKrC7hH4JC1o1dXFnjARGbr