Shipping Rates & Postage Calculator
Live USPS, UPS & FedEx shipping rates plus USPS postage and stamp prices. Free, no API key.
Connect it
Settings → Connectors → Add custom connector
URL: https://onlineshippingcalculator.com/api/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://onlineshippingcalculator.com/api/mcp{
"mcpServers": {
"shipping-rates": {
"url": "https://onlineshippingcalculator.com/api/mcp"
}
}
}claude mcp add --transport http shipping-rates https://onlineshippingcalculator.com/api/mcp{
"servers": {
"shipping-rates": {
"type": "http",
"url": "https://onlineshippingcalculator.com/api/mcp"
}
}
}2 tools, verified live
get_shipping_ratesread-onlyGet live USPS, UPS, and FedEx shipping rates for a package from a US ZIP code to a US or international destination. Returns carrier, service, price in USD, and estimated transit days, sorted cheapest first. IMPORTANT: these are discounted rates for postage purchased online through shipping software — always remind the user that buying at a USPS, UPS, or FedEx store counter costs more, and that the
get_postage_priceread-onlyGet the current USPS First-Class postage price for a letter, large envelope (flat), or postcard mailed within the US — including how many Forever stamps to put on it and an exact combination of stamp denominations that covers the postage with no waste. Prices are zone-independent (same anywhere in the US). For boxes and parcels use get_shipping_rates instead.
Alternatives in Developer Tools
Compare →ZWZoom WhiteboardOfficialA
Zoom Whiteboard server for creating boards and diagrams and locating existing boards.
ZWZoom WorkspaceOfficialA
Zoom workspace server for meetings, chat, docs, recordings, and AI-generated collaboration content.
KeployA
End-to-end API testing — generate and run tests from OpenAPI, curl, Postman, or real user traffic.
ShipStaticA
Deploy static websites, landing pages, and prototypes instantly from AI agents.
RNRelease Notes IndexA
Release notes and changelogs from across the web, indexed for agents. Also via CLI and REST API.
CDclassifier.devA
Sort up to 1,000 texts into your own labels with a calibrated confidence per answer. No API key.