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Preview. The API is shared with design partners and may change before launch. Register interest for sandbox access.

Changelog

We announce every API change here. Breaking changes always come with a new dated version and advance notice to partners.

2026-10-01

Section titled “2026-10-01”

First public preview of the Phew APIs, shared with design partners.

  • Automatic product classification and eligibility on every offer.
  • Drop-in SDK and iframe embed for showing the offer without building UI.
  • Checkout API: offers, policies, claims, webhook endpoints and events.
  • Partner API: merchants and settlement statements.
  • Security levels: Standard (API keys), Enhanced (IP allowlist and RFC 9421 request signing) and Bank-grade (OAuth 2.0 with private_key_jwt or mTLS).
  • Shopify app and WooCommerce plugin in pilot.