MARKETPLACE FEE VERIFICATION
Marketplace fee verification for cross-border sellers.
Calculate supported marketplace-site fees using versioned rules, then inspect the exact rule, evidence and official source behind each fee line.
Scenario inputs
Optional profit inputs
These stay in your browser and are not part of the marketplace rule engine.
Beta scope: selected verified platform-market fee categories only. Unsupported or missing contexts return an explicit status instead of guessing.当前为 Beta：仅计算已审核的平台 × 国家站点费用范围；未支持或信息不足的场景会明确返回状态，不会猜算。
Calculation receipt
Enter a scenario to calculate.
The result will show fee lines, rule IDs, evidence status and official source links.
Rule provenance
Quick actions
RULE PROVENANCE
Inspect the evidence behind every published fee rule.
Review rule versions, effective dates, evidence claims and the official sources used by the calculator.
REAL-WORLD VERIFICATION
Backtest the rule engine against actual settlement fees.
CSV parsing and comparison run in your browser. The prototype does not upload the selected file.
Choose data
Only reviewed executable platform × site pairs are offered. Settlement amounts use the selected site currency and unsupported currencies fail closed.仅显示已审核且可执行的平台 × 站点组合；结算金额使用所选站点币种，不支持的币种会直接 fail-closed。
No file selected.
Map columns
PRICE INTELLIGENCE跨平台商品比价
Compare the same product across marketplaces and countries.比较同一商品在不同平台和国家站点的价格与利润
Normalize buyer prices with explicit FX snapshots, then use RuleTrace fee rules only where a verified release exists.用明确的汇率快照统一买家价格；只有存在已验证规则的站点才计算平台费用和卖家利润。
FX snapshots汇率快照
Enter the exact conversion rates you want this comparison to use. RuleTrace does not invent or silently fetch a rate.填写本次比较要使用的明确汇率。RuleTrace 不会猜测，也不会静默抓取汇率。
Marketplace offers平台报价
Comparison receipt比价回执
Add at least two offers and run the comparison.至少添加两个报价后开始比较。
Unsupported fees remain explicit instead of being guessed.未验证的平台费用会明确显示为不支持，不会猜算。