Shipping Rates & Postage Calculator
Dev Tools
Remote
Official
Live USPS, UPS & FedEx shipping rates plus USPS postage and stamp prices. Free, no API key.
How to connect
1
Add the remote MCP URL
Paste this endpoint into Claude, ChatGPT, or Cursor MCP settings.
https://onlineshippingcalculator.com/api/mcp
2
Verify the tools loaded
Confirm
tools/list returns the expected tools before relying on them in production.Tools
Tool names are not listed in our registry for this server. Connect it in your MCP client to see the live tool list.