# American Express Enhanced Authorization (EA)

**Canonical:** https://apis.io/apis/american-express/american-express-enhanced-authorization-ea-/  
**Provider:** American Express — https://apis.io/providers/american-express/  
**Documentation:** https://developer.americanexpress.com/products/enhanced-authorization-v2/resources#readme

American Express Enhanced Authorization (EA) is one of 12 APIs that [American Express](https://apis.io/providers/american-express/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Fraud Prevention, Payments, Risk, Credit Cards, and United States. The published artifact set on APIs.io includes API documentation and an API reference.

American Express Enhanced Authorization (EA) is a fraud prevention tool that helps protect cardholders and merchants from unauthorized transactions. EA uses advanced algorithms and machine learning to analyze transaction patterns and detect suspicious activity. By passing additional transaction data elements at the time of authorization, this system enables American Express to provide real-time authorization decisions, allowing them to quickly identify and block potentially fraudulent transactions before they are approved.

## Machine-readable artifacts (2)

- **Documentation** — https://www.americanexpress.com/content/dam/amex/us/merchant/pdf/enhancedauthorization_final.pdf
- **APIReference** — https://developer.americanexpress.com/products/enhanced-authorization-v2/resources#readme

## Other American Express APIs (11)

- [American Express Token Service (AETS) API](https://apis.io/apis/american-express/american-express-token-service-aets-api/)
- [American Express Account and Transaction API](https://apis.io/apis/american-express/american-express-account-and-transaction-api/)
- [American Express Confirmation of Funds PSD2 API](https://apis.io/apis/american-express/american-express-confirmation-of-funds-psd2-api/)
- [American Express @ Work B2B API](https://apis.io/apis/american-express/american-express-work-b2b-api/)
- [American Express Card On-Demand](https://apis.io/apis/american-express/american-express-card-on-demand/)
- [American Express Pay with Points](https://apis.io/apis/american-express/american-express-pay-with-points/)
- [American Express API-Based Payment Platform](https://apis.io/apis/american-express/american-express-api-based-payment-platform/)
- [American Express Payment Account Reference (PAR)](https://apis.io/apis/american-express/american-express-payment-account-reference-par-/)
- [American Express Smart Offer Partnership](https://apis.io/apis/american-express/american-express-smart-offer-partnership/)
- [American Express AMEX Account Connect](https://apis.io/apis/american-express/american-express-amex-account-connect/)
- [American Express Network Loyalty Platform](https://apis.io/apis/american-express/american-express-network-loyalty-platform/)

## Tags

Fraud Prevention, Payments, Risk, Credit Cards, United States

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/american-express/american-express-enhanced-authorization-ea-/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/american-express/.