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Signing and validation
Covers required fields, MD5 signing, IP whitelist behavior, and response codes.
Merchant API DocsBilingual integration reference
Collection, payout, callback, and signing guides for merchant integration
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Collect and payout
Documents real request fields, status behavior, callback payloads, and currency-specific rules.
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Chinese and English
Maintained in both languages so product, support, and engineering can work from the same source.