Get live USPS, UPS, FedEx and DHL shipping rates and buy labels for parcels from the US.
Connects to USPS, UPS, FedEx and DHL to quote live shipping rates for parcels from the US to domestic, Canada, UK, Germany and Australia. Muse can compare rates across carriers, create checkout links to purchase labels, track shipments, and view a monthly price index.
Try asking Muse: "Show me the cheapest way to ship this 5-pound box to Toronto and buy the label."
Source: Found in the official MCP Registry (com.smklog/parcel-shipping-rates) · First listed September 24, 2026
Each bar is one check, every 15 minutes. Green means it answered. Last checked 2 h ago.
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
musedirectory.ai is not part of Meta. More about how Muse handles your information
Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
https://quote-api.smklog.com/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
SMKlog Parcel Shipping Rates is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
Choose Create, give it a name, paste the link as the MCP server URL, and save. If it needs a sign-in, ChatGPT asks for it here.
Start a chat, open the tools menu, pick the connector, and ask. ChatGPT asks before it runs a tool the first time.
Custom connectors need a paid ChatGPT plan, and on Team, Enterprise and Edu accounts only an admin can add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in ChatGPT
In Claude, open Settings, then Connectors.
Choose Add custom connector, give it a name, and paste the link.
If it needs a sign-in, Claude sends you to it. Then turn the connector on in a chat from the tools menu and ask.
Custom connectors are available on paid Claude plans; on Team and Enterprise accounts an admin may need to add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in Claude
https://quote-api.smklog.com/mcpResponse time at the last check: 120ms. Worked in 99.1% of checks over 30 days.
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
get_parcel_quoteLive parcel rates from a US origin: USPS, UPS, FedEx; DHL Express to DE and AU. Describe the item to estimate the box, or give exact dimensions and weight. Up to five services, each a total with the SMKlog fee inside (itemized only on the checkout receipt). To buy on smklog.com: create_checkout_linkTurns a decided shipment into a payment session: the amount and a handoff URL to prefilled SMKlog checkout. Pass quote_id from get_parcel_quote: its price is reused, no second carrier call. Keep the returned session_id for get_checkout_status. It never charges: the human confirmstrack_parcelTrack a shipment whose label was bought on smklog.com, by carrier tracking number: the current status, the latest scan events (newest first, up to eight) and the estimated delivery date when the carrier gives one. SMKlog labels only: not a universal tracker, so another seller's nget_price_indexThe SMKlog parcel shipping price index: a monthly repriced basket of six common boxes (1 to 20 lb) shipped from Newark, NJ to five US cities, quoted through the same live USPS, UPS and FedEx pipeline that prices real shipments. Returns the cheapest purchasable service per box andget_checkout_statusReports where a create_checkout_link session stands: whether the human opened checkout, paid, and whether the label exists, with the tracking number once it does. Reads SMKlog's own records only: no carrier call, no quote allowance, nothing changes. Poll minutes apart: nothing moget_refund_statusSays whether the payment behind a create_checkout_link session was refunded, how much and why. Status: not_paid (nothing to refund), none (paid, not refunded), requested (a refund is under way), under_review (an unused non-USPS label, decided by an operator), declined (the label cancel_checkout_linkCancels a create_checkout_link session the human has not opened yet: its handoff link stops binding a checkout, and get_checkout_status answers session_cancelled from then on. Nothing has been paid at that stage, so nothing is refunded and no human is needed. Once the human openscalculate_billable_weightThe weight USPS, UPS and FedEx bill for a box: dimensional weight (L x W x H / 139) against actual weight, rounded as each carrier rounds, and the parcel and USPS limits it meets. Explains why a big light box costs more and how small a box would bill at its real weight. A calculaget_holiday_shipping_deadlinesThe carriers’ own send-by dates for delivery by the 2026 winter holidays: USPS (Ground Advantage, Priority Mail, Priority Mail Express; delivery by Dec 25) and FedEx (Ground Economy, Ground and Home Delivery by days in transit, Express Saver, 2Day, Overnight; delivery by Dec 24),get_shipping_restrictionsWhat SMKlog will not ship and what ships only with conditions: prohibited categories (weapons, drugs, counterfeit goods, money and valuables, living and perishable contents, dangerous goods, controlled exports), restricted ones (batteries, medicine, chemicals and aerosols, regulahttps://quote-api.smklog.com/mcpNot in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use SMKlog Parcel Shipping Rates to help me. It is a free service with an MCP server at https://quote-api.smklog.com/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
At the last check (November 13, 2026, 17:31 UTC) the endpoint was working, answering in 120ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
It was screened on September 24, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
It exposes 10 tools, including get_parcel_quote, create_checkout_link, track_parcel, get_price_index. For example, you could ask Muse: "Show me the cheapest way to ship this 5-pound box to Toronto and buy the label."
This listing was added from public sources (Found in the official MCP Registry (com.smklog/parcel-shipping-rates)). If you build SMKlog Parcel Shipping Rates, claim it to correct the details and get your badge.
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