Japan Logistics (Ship&co: Yamato / Sagawa / Japan Post labels + tracking) MCP server

Estimate Japan shipping rates BEFORE creating a label (read-only — quotes only, creates nothing and spends nothing). Given a from_address (sender), a to_address (recipient) and the parcel (weight in GRAMS, dimensions in CENTIMETRES) plus the products, it asks Ship&co for the available carrier services and their prices (JPY), and flags the cheapest. Ship&co reaches Japan domestic couriers Yamato (ヤマト運輸) / Sagawa (佐川急便) / Japan Post (日本郵便) / Seino (西濃運輸) plus international DHL / UPS / FedEx. Use the returned carrier + service in create_shipment. NOTE: /rates returns quotes for the carriers registered in your Ship&co account; if none are registered you can still create TEST labels directly with create_shipment (carrier=yamato or sagawa, setup.test defaults true — no carrier account needed for test mode). Bring your own Ship&co API token via header x-shipandco-token.

Create a Japan shipping label via Ship&co in ONE call — pass a carrier (yamato / sagawa / japanpost / seino / dhl / ups / fedex), a from_address (sender) and to_address (recipient) with a 7-digit Japanese postal code (郵便番号), prefecture (都道府県) and city (市区町村), the parcel (weight in GRAMS, dimensions in CENTIMETRES) and the products. Ship&co creates the shipment AND issues the label in one step, returning shipment_id, carrier, tracking_number(s) and a printable label PDF (label_url). Ship&co reaches Japan domestic couriers Yamato (ヤマト運輸) / Sagawa (佐川急便) / Japan Post (日本郵便) / Seino (西濃運輸) plus international DHL / UPS / FedEx. TEST MODE IS THE DEFAULT (test:true → free non-billable virtual label; Yamato / Sagawa need no carrier account for test mode) — set test:false to buy a REAL billable label. Bring your own Ship&co API token via header x-shipandco-token (self-serve in the Ship&co Dashboard: API menu -> Create New Token). Owner policy headers gate the declared goods value (JPY) before creation.

Track a Japan shipment by its carrier + tracking_number (the tracking number create_shipment returned, or any carrier tracking number). Returns the current status with a plain-English hint. Status values (Ship&co enum): collected, transit, out_for_delivery, delivered, exception, returned. The raw current_status details, location and full scan history are always included. Non-terminal statuses carry next_steps. Safe to call anytime.

Void / cancel a Japan shipment (and its label) created by create_shipment, by its shipment_id. Use this to cancel a label you created by mistake before the parcel is handed to the carrier. TEST labels can always be voided; a REAL label can only be voided while it has not yet been shipped/scanned — an already-collected parcel cannot be voided here. Returns the void result reported by Ship&co.