Documentation Index
Fetch the complete documentation index at: https://docs.revolv3.com/llms.txt
Use this file to discover all available pages before exploring further.
What is 3D Secure (3DS)?
3D Secure (also called “3DS”) is an extra security layer for online card payments. When required, customers authenticate directly with their bank. Why it matters:- Reduces fraud
- Helps with liability shift (processor/network dependent)
- Required in some regions (e.g., PSD2)
- May improve approval rates
3DS Version Support
Revolv3 supports EMV 3DS 2.x pass-through only. 3DS 1.x pass-through is not supported.The threeDS Object
Include the threeDS object in your payment request:
Field Reference
| Field | Description | Required | Max Length |
|---|---|---|---|
cavv | Cardholder Authentication Verification Value returned by issuer/ACS | Required if threeDS is supplied | 40 |
xid | Transaction identifier from ACS (legacy / optional in 2.x) | Optional | 40 |
dsTransactionId | Directory Server Transaction ID (EMV 3DS 2.x) | Optional | 36 |
threeDsVersion | EMV 3DS protocol version (2.1.0, 2.2.0, 2.3.0) | Required for 3DS | - |
dsTransactionId is the Directory Server Transaction ID (transaction-level identifier), not a Directory Server ID.
Example Request
Troubleshooting
Common Issues
- Missing
threeDsVersion - Unsupported
threeDsVersion - Invalid base64 format in
cavv
Worldpay Sandbox Note (Base64 Padding)
Some Worldpay sandbox scenarios may rejectcavv values that include trailing base64 padding (=).
If you experience unexplained validation failures:
Example:
= padding if required. Do not modify any other characters.
Best Practices
- Send values exactly as received from your 3DS provider
- Only include fields your provider returned
- Ensure
threeDsVersionmatches the version used - Test thoroughly in sandbox before production rollout

