smklog/parcel-shipping-rates-mcp

Live USPS, UPS, FedEx and DHL Express rates for a parcel sent from the US — domestic, or to Canada, the UK, Germany or Australia — described in plain words.
No scale. No account. No API key.
https://quote-api.smklog.com/mcp · streamable-http · MCP 2026-07-28, 2025-06-18, 2025-03-26
---
Most shipping APIs want a box: length, width, height, weight. People don't have
that — they have a thing on the table and a ZIP code to send it to. This server
takes the thing.
Describe **"a full-size acoustic guitar in its hard case"** and it estimates the
packed carton, prices it live across three carriers, and hands back services you
can actually buy — with the checkout total and, where the carrier publishes one,
its own counter price for the same parcel side by side, so you can always show a
person both numbers.
What you can ask your assistant
- *"How much to ship a 12 lb box from 07922 to 90011?"*
- *"What would it cost to send a full-size acoustic guitar in a hard case from New Jersey to Los Angeles?"*
- *"Compare USPS, UPS and FedEx for a 5 lb box, Newark to Chicago — which is cheapest and which is fastest?"*
- *"Price a 24 × 18 × 12 in box at 22 lb going to 33101, then give me a link to buy the label."*
- *"Where is my package? Tracking 9400111899561234567890."*
- *"Did they pay for that label yet? Here is the session id you gave me."*
- *"What has a 5 lb box to Denver cost over the last few months?"*
Tools
| Tool | What it does |
|---|---|
| **get_parcel_quote** | Live rates for one parcel from a US origin, domestic or to Canada, the UK, Germany or Australia, across USPS, UPS and FedEx, plus DHL Express to Germany and Australia. Plain-words description → estimated packed box; or pass exact dimensions and weight to skip the estimate. Returns up to five purchasable services with the checkout total (SMKlog fee inside), the carrier's counter price beside it where one is published, and the delivery window. |
| **create_checkout_link** | Prices the shipment and returns a payment session: the amount, a handoff URL that opens the SMKlog checkout prefilled with this shipment, and a session_id. The human confirms the contents certification and the carrier-adjustment consent there and pays on Stripe. |
| **get_checkout_status** | Where a payment session stands: awaiting_checkout, checkout_started, paid, label_ready (with the tracking number), delivered or refunded. Read from the order record, so it costs no carrier call and never carries names, addresses or emails. Sessions answer for 30 days. |
| **track_parcel** | Delivery status, scan events and the carrier's estimated delivery date for a shipment whose label was bought on smklog.com. Not a universal tracker for arbitrary numbers. |
| **get_price_index** | The monthly SMKlog parcel price index: six common boxes (1–20 lb) from Newark, NJ to five US cities, repriced through the same live pipeline that prices real shipments. Reading it spends no quote allowance. |
Things worth knowing before you wire it in
**A quote is a real carrier call and costs real money to produce.** Call
get_parcel_quote once per shipment, not once per variation you are curious
about. The server is rate limited per client and will say so plainly rather than