Shipping Rates & Postage Calculator PASS

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

Registry name	`com.onlineshippingcalculator/shipping-rates` (v1.0.0)
Endpoint	`https://onlineshippingcalculator.com/api/mcp`
Reported server	shipping-rates-calculator 1.0.0
Protocol version	2025-03-26
Tools exposed	2
Checked at	2026-10-12T09:28:22.133Z

Findings

INFO STATIC_SCHEMA_CHECKS_PASSED — 2 tools passed deterministic schema checks

Reproduce this report

npx @eidonze/mcpreflight schema https://onlineshippingcalculator.com/api/mcp

Embed status: <img src="https://xka0085-byte.github.io/mcpreflight/trust/badge/com.onlineshippingcalculator-shipping-rates.svg"> · Machine-readable: /api/com.onlineshippingcalculator-shipping-rates.json

Generated by mcpreflight — read-only MCP initialize + tools/list. No tools were called, no payments attempted. Static schema checks do not predict model tool selection or prove behavior across all clients. Scanned: 2026-10-12.