Welcome to the Thredd Documentation Portal

Speed up your integration to Thredd with our easy to use APIs and accessible technical documentation. Click the links below to access the latest guides in your preferred format.

The Technical Documentation section contains the current and previous versions of each document, along with a version history that describes the changes made for each version. Please contact your Account Manager to request a document that is not listed on this site.

Getting Started

Using the Thredd Documentation Portal

Technical Documentation (All Versions, Online and PDF)

Key Concepts Guide

Getting Started Guide

Products and Services

Introduction to Card Payments (Abridged)

New Connecting to Thredd Guide

Card Issuing and Management

Cards API Website (REST)

Web Services Guide (SOAP)

Physical Card Configuration Guide

Virtual Cards Guide

Master Virtual Cards (MVC) Guide

Card Generation Interface Specification

Payment Processing

External Host Interface (EHI) Guide (XML)

External Host Interface (EHI) Guide (JSON)

Card Transaction System Guide

PSD2 and SCA Guide

New Global Reporting Guides

Legacy Transaction XML Reporting Guide

Legacy Balance XML Reporting Guide

Card Status and Response Codes

Risk Management and Fraud

3D Secure - Cardinal

3D Secure - Apata

Fraud Transaction Monitoring Guides

Payments Dispute Management Guide

Fraud Reporting Guide

Account Management

New Thredd Portal: Card and Transaction Management Guide

Smart Client Guide (Legacy)

New Automated Back Office Guide

Partnership Network

Partnership Network

Discover Global Processing Guide

Customer Experience Enablers

Tokenisation Service Guide

Mobile Text Messaging (SMS) Guide

Interactive Voice Response (IVR) Guide

Other Thredd Documents

PANFinder Guide

Cardholder XML Report Guide

Third Party Web Services Guide

Pre-Release Notifications (PRNs)

PRNs for past releases

Support Information

Country Support

Frequently Asked Questions (FAQs)

We Value your Feedback

Contact our technical publications team directly by sending an email to docs@thredd.com, for queries or feedback related to the Thredd Technical Documentation.

Thredd Home | Privacy policy | Cookie policy

Publication number: Portal-09 May 2025-1.0.141

© 2025 Thredd UK Limited. | Kingsbourne House, 229-231 High Holborn, London, WC1V 7DA | Company registration number 09926803

The material contained on this website is copyrighted and owned by Thredd UK Limited together with any other intellectual property in such material. Except for personal and non‐commercial use, no part of this guide may be copied, republished, performed in public, broadcast, uploaded, transmitted, distributed, modified or dealt with in any manner at all, without the prior written permission of Thredd UK Limited, and, then, only in such a way that the source and intellectual property rights are acknowledged.

To the maximum extent permitted by law, Thredd UK Limited shall not be liable to any person or organisation, in any manner whatsoever from the use, construction or interpretation of, or the reliance upon, all or any of the information or materials contained on this website. The information in these materials is subject to change without notice and Thredd UK Limited. assumes no responsibility for any errors.