Shipping Rates & Postage Calculator

com.onlineshippingcalculator/shipping-rates · v1.0.0

No registry update 90+ days

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-06-18
Rank score	—
Declared risk	Read-only (all tools declare readOnlyHint)
Capabilities declared	tools
Tool definitions	2 tools · with description 100% · input schema is an object 100% · read/destructive hints 100%

Live USPS, UPS & FedEx shipping rates plus USPS postage and stamp prices. Free, no API key.

streamable-http · https://onlineshippingcalculator.com/api/mcp

claude mcp add --transport http shipping-rates https://onlineshippingcalculator.com/api/mcp

{
  "mcpServers": {
    "shipping-rates": {
      "url": "https://onlineshippingcalculator.com/api/mcp"
    }
  }
}

get_shipping_rates
Get 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
get_postage_price
Get 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 t

Website · JSON · Text for agents · Registry updated 2026-06-12