Segment Unify Profile API (2025)

Segment documentation for the Unify Profile API (snippet-only — 403 from segment.com in this environment).

Note: URL moved from /profiles/profile-api/ to /unify/profile-api/ — updated in this node.

Key facts surfaced via search snippet (2026-05-19):

• Single API for reading user-level and account-level customer data programmatically.
• Returns complete user object including external_ids, traits, and event journey history.
• Default response: 10 traits; up to 200 traits via ?limit=200 querystring parameter.
• ?class=audience or ?class=computed_trait URL parameters filter response to specific attribute types.
• Supports programmatic activation of Engage data.
• Curriculum reference: validate-unified-profile-via-api node (Module 3).