Yen estimates of the total cost to buy Japanese goods via proxy services and ship them abroad.
Scored across 6 tools
Most tools have clearly distinct purposes: listing countries/proxies, checking shippability, getting referral links, and estimating costs. The main overlap is between estimate_landed_cost (single item) and compare_proxies (multi-item cart), which could be confused at first but descriptions clarify the boundary.
All tool names follow a consistent snake_case verb_noun pattern: check_shippability, compare_proxies, estimate_landed_cost, get_referral_link, list_countries, list_proxies. There are no mixed conventions or vague names.
Six tools is well-scoped for a focused landed-cost/shipping estimation server. Each tool covers a distinct step in the workflow without obvious redundancy.
The surface covers the core workflow: list destinations and proxies, check export eligibility, estimate single-item costs, compare multi-item carts, and retrieve referral links. Minor gaps remain around detailed fee breakdowns and full totals, partly due to acknowledged dataset limitations, but agents can still work around these constraints.
Export check: allowed, conditional, or blocked, with reasons (lithium, alcohol, destination lists). Not a customs clearance.
| Name | Required | Description | Default |
|---|---|---|---|
| lang | No | ||
| country | Yes | ||
| lithium | No | ||
| category | Yes | ||
| weight_g | No | ||
| price_jpy | No | ||
| alcohol_abv | No | ||
| mains_voltage | No | ||
| shipping_method | No |
Estimate a multi-item cart for each proxy. cheapest/fastest stay null until the dataset can support them.
| Name | Required | Description | Default |
|---|---|---|---|
| lang | No | ||
| items | Yes | ||
| proxy | No | ||
| country | Yes | ||
| shipping_method | No |
Estimate yen costs (pay-now / before-ship / on-arrival) for one item via Japan proxies. Partial sums only; not a landed total. Missing fees stay null.
| Name | Required | Description | Default |
|---|---|---|---|
| lang | No | ||
| proxy | No | Omit to compare every proxy in the dataset. | |
| country | Yes | ISO code or English name, e.g. US, GB, DE. | |
| lithium | No | ||
| category | Yes | ||
| item_url | No | Echoed only. Never fetched by this server. | |
| quantity | No | ||
| weight_g | No | Weight of one unit in grams. Omit only to use unsourced placeholder. | |
| width_cm | No | ||
| height_cm | No | ||
| length_cm | No | Ignored. Volumetric weight is not calculated. | |
| price_jpy | Yes | Merchandise price in yen for one unit. | |
| alcohol_abv | No | ||
| source_site | No | ||
| mains_voltage | No | ||
| shipping_method | No |
Outbound link for a proxy. Buyee returns the affiliate URL when not alcohol; alcohol is suppressed. Other proxies are public pages with placeholder:true. Never executes a purchase.
| Name | Required | Description | Default |
|---|---|---|---|
| lang | No | ||
| proxy | Yes | ||
| category | No | ||
| item_url | No | Echoed only. Never fetched. |
List destination countries with EMS zone assignment and lithium list flags.
| Name | Required | Description | Default |
|---|---|---|---|
No parameters | |||
List proxies in the fee dataset with summaries and unknown charges.
| Name | Required | Description | Default |
|---|---|---|---|
No parameters | |||
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
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