Langfuse

By Nous Research · Official Docs · Date unknown

Langfuse observability for Hermes: one trace per turn, one generation per LLM call (usage and cost from Hermes' own pricing, cache and reasoning tokens included), one observation per tool call and subagent. Content capture is sanitized by default (metadata-only and full are opt-in); sends traces only to the Langfuse project whose keys you set. Formerly built into Hermes core as observability/langfuse; existing users are migrated automatically.

Requires Hermes >=0.21.7. Environment: HERMES_LANGFUSE_PUBLIC_KEY, HERMES_LANGFUSE_SECRET_KEY. Version 2.0.0 at import.

hermes plugins install langfuse

• #skills
• #plugin
• #official-plugin
• #general