Signifyd

Signifyd Sale (Checkout) API

Submit checkout and sale events to Signifyd's Commerce Protection Platform for real-time fraud and chargeback risk evaluation. The Checkout flow supports pre-authorization screening, while the Sale flow handles post-authorization order submission. Responses return a guarantee decision — ACCEPT, HOLD, or REJECT — typically within hundreds of milliseconds, with results delivered synchronously and/or via the ORDER_CHECKPOINT_ACTION_UPDATE webhook.

GitHub

Documentation

📖
Documentation
https://developer.signifyd.com/main/reference
📖
GettingStarted
https://developer.signifyd.com/main/docs/getting-started

Other Resources

🔗
APIsJSON
https://raw.githubusercontent.com/api-evangelist/signifyd/refs/heads/main/apis.yml

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API entry from apis.yml

apis.yml Raw ↑ 
aid: signifyd:signifyd-sale-api
name: Signifyd Sale (Checkout) API
tags:
- Sale
- Checkout
- Fraud
- Order
- E-Commerce
tags_raw:
- Sale
- Checkout
- Fraud
- Orders
- Ecommerce
humanURL: https://developer.signifyd.com/main/reference
properties:
- url: https://developer.signifyd.com/main/reference
  type: Documentation
- url: https://developer.signifyd.com/main/docs/getting-started
  type: GettingStarted
description: Submit checkout and sale events to Signifyd's Commerce Protection Platform for real-time
  fraud and chargeback risk evaluation. The Checkout flow supports pre-authorization screening, while
  the Sale flow handles post-authorization order submission. Responses return a guarantee decision — ACCEPT,
  HOLD, or REJECT — typically within hundreds of milliseconds, with results delivered synchronously and/or
  via the ORDER_CHECKPOINT_ACTION_UPDATE webhook.