Halliday

• Name: Halliday

• Status: alias of halliday

• Why this note is not separate: Halliday is better kept as an entity note because the useful question is who controls deposit routing, provider composition, quote truth, API-key admission, webhook delivery, and retry / recovery workflow — not whether Halliday is a standalone protocol or rail.

• Canonical note: halliday

• Last reviewed: 2026-08-10 UTC