WeChat Pay Open Platform

API V3 Global Upgrade Guidelines

· How to upgrade from V2 to V3?
· Is upgrading mandatory?

API V3 Global Upgrade Guidelines

· How to upgrade from V2 to V3?
· Is upgrading mandatory?

Product Capability Overview

API Dictionary
API list and API details of all products.
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API Rules
Detailed introduction of API rules including signature, encryption etc.
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Access Specification
Guidelines and specifications to build a high-quality payment system.
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Terms
Explanations of Terms in documentations.
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FAQ
Frequently asked questions and answers during access
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