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ap2-challenge-stepup

Implement AP2 challenge and step-up authentication flows with 3DS2 and OTP verification.

35|16|Updated Mar 4, 2026
Search Tags:#security#authentication#payments#otp#ap2#3ds2#step-up
One-click install
npx skills add https://github.com/OrcaQubits/agentic-commerce-claude-plugins --skill ap2-challenge-stepup
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: ap2-challenge-stepup
Source: https://github.com/OrcaQubits/agentic-commerce-claude-plugins/tree/main/ap2-agentic-payments/skills/ap2-challenge-stepup
Command: npx skills add https://github.com/OrcaQubits/agentic-commerce-claude-plugins --skill ap2-challenge-stepup

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill addresses the need for enhanced security in agentic payment processing by implementing robust challenge and step-up authentication flows, ensuring compliance and fraud prevention.

Core Features & Use Cases

  • Multi-Factor Authentication: Integrates with 3DS2, OTP verification, and other step-up methods.
  • Secure Redirects: Manages user redirection to trusted surfaces for authentication, maintaining security.
  • Use Case: When a payment transaction is flagged as high-risk, this Skill can automatically trigger a 3DS2 challenge, redirecting the user to their bank's secure portal for verification before the payment is finalized.

Quick Start

Use the ap2-challenge-stepup skill to implement a redirect-based OTP verification flow for a payment mandate.

Frequently Asked Questions about ap2-challenge-stepup

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I implement 3DS2 challenge and step-up authentication for payment processing?▼

3DS2 challenge and step-up authentication is implemented by triggering an OTP verification flow or redirecting users to trusted surfaces for secure verification before finalizing high-risk payment transactions.

What is step-up authentication in AP2 payment flows?▼

Step-up authentication in AP2 payment flows is an additional security mechanism that requires users to complete multi-factor challenges, such as OTP verification, when a transaction is flagged as high-risk.

How do I set up a redirect-based OTP verification flow for a payment mandate?▼

To set up redirect-based OTP verification for a payment mandate, you configure the authentication flow to redirect the user to a trusted surface, ensuring adherence to AP2 V0.1 challenge message formats and redirect protocols.

Does AP2 challenge authentication support secure redirects to bank portals?▼

AP2 challenge authentication supports secure redirects to bank portals by managing user redirection to trusted surfaces, maintaining security while completing the 3DS2 verification process.

When do I need to trigger a 3DS2 challenge during agentic payment processing?▼

A 3DS2 challenge is triggered during agentic payment processing when a transaction is automatically flagged as high-risk, requiring additional user verification to ensure fraud prevention and compliance.

What specification should I follow for AP2 challenge message formats and redirect protocols?▼

You must adhere to the AP2 V0.1 specification for challenge message formats and redirect protocols to ensure proper implementation of step-up authentication and trusted surface redirects.

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