ProductSignals API — Changelog

This page lists API changes by version. Breaking changes should only be introduced with a major version bump.

v1 — 2026-01

• Public billing flow introduced (Stripe Checkout + webhook activation).
• Public endpoint: POST /v1/billing/public/checkout-session.
• One-time API key reveal after payment via success flow (session_id).
• Core endpoint remains: POST /v1/product-signals.

Docs Pricing Prod checklist