Shipping Rates & Postage Calculator
Live USPS, UPS & FedEx shipping rates plus USPS postage and stamp prices. Free, no API key.
endpoint: https://onlineshippingcalculator.com/api/mcp
registry: com.onlineshippingcalculator/shipping-rates
B
recent success 100% (30 probes) ·
MCP handshake OK
· protocol 2025-06-18
TLS valid (48d left) · latency 93.0 ms ·
HTTP 405 · auth open ·
tools 2
manifest bef1ba8e504d1cba
· drift events seen here: 0
Heuristic flags
- exfiltration-verb — tool text pairs send/upload verbs with credential-like nouns
Flags are pattern matches on public tool descriptions, not verdicts. Read them as questions to ask the vendor.
Embed this grade
<a href="https://golemreach.com/trust/s/3553"> <img src="https://golemreach.com/trust/badge/3553.svg" alt="golemreach trust grade"></a>
Recent probes
| time (UTC) | ok | grade | mcp | latency | tls | tools | hash |
|---|---|---|---|---|---|---|---|
| 2026-10-13T04:55:13Z | ✓ | B | ✓ | 93.0 ms | 48d | 2 | bef1ba8e504d1cba |
| 2026-10-12T22:54:22Z | ✓ | B | ✓ | 54.0 ms | 48d | 2 | bef1ba8e504d1cba |
| 2026-10-12T16:52:32Z | ✓ | B | ✓ | 124.0 ms | 48d | 2 | bef1ba8e504d1cba |
| 2026-10-12T10:48:47Z | ✓ | B | ✓ | 88.0 ms | 48d | 2 | bef1ba8e504d1cba |
| 2026-10-12T04:42:23Z | ✓ | B | ✓ | 89.0 ms | 49d | 2 | bef1ba8e504d1cba |
| 2026-10-11T22:41:21Z | ✓ | B | ✓ | 104.0 ms | 49d | 2 | bef1ba8e504d1cba |
| 2026-10-11T16:40:43Z | ✓ | B | ✓ | 94.0 ms | 49d | 2 | bef1ba8e504d1cba |
| 2026-10-11T10:40:04Z | ✓ | B | ✓ | 148.0 ms | 49d | 2 | bef1ba8e504d1cba |
| 2026-10-11T04:38:33Z | ✓ | B | ✓ | 59.0 ms | 50d | 2 | bef1ba8e504d1cba |
| 2026-10-10T22:37:37Z | ✓ | B | ✓ | 110.0 ms | 50d | 2 | bef1ba8e504d1cba |
| 2026-10-10T16:36:56Z | ✓ | B | ✓ | 126.0 ms | 50d | 2 | bef1ba8e504d1cba |
| 2026-10-10T10:36:23Z | ✓ | B | ✓ | 63.0 ms | 50d | 2 | bef1ba8e504d1cba |
| 2026-10-10T04:35:45Z | ✓ | B | ✓ | 140.0 ms | 51d | 2 | bef1ba8e504d1cba |
| 2026-10-09T22:33:30Z | ✓ | B | ✓ | 67.0 ms | 51d | 2 | bef1ba8e504d1cba |
| 2026-10-09T16:32:17Z | ✓ | B | ✓ | 86.0 ms | 51d | 2 | bef1ba8e504d1cba |
| 2026-10-09T10:30:05Z | ✓ | B | ✓ | 164.0 ms | 51d | 2 | bef1ba8e504d1cba |
| 2026-10-09T04:28:09Z | ✓ | B | ✓ | 73.0 ms | 52d | 2 | bef1ba8e504d1cba |
| 2026-10-08T22:26:59Z | ✓ | B | ✓ | 70.0 ms | 52d | 2 | bef1ba8e504d1cba |
| 2026-10-08T16:26:28Z | ✓ | B | ✓ | 162.0 ms | 52d | 2 | bef1ba8e504d1cba |
| 2026-10-08T10:24:49Z | ✓ | B | ✓ | 131.0 ms | 52d | 2 | bef1ba8e504d1cba |
| 2026-10-08T04:24:06Z | ✓ | B | ✓ | 88.0 ms | 53d | 2 | bef1ba8e504d1cba |
| 2026-10-07T22:23:21Z | ✓ | B | ✓ | 128.0 ms | 53d | 2 | bef1ba8e504d1cba |
| 2026-10-07T16:22:23Z | ✓ | B | ✓ | 60.0 ms | 53d | 2 | bef1ba8e504d1cba |
| 2026-10-07T10:21:17Z | ✓ | B | ✓ | 55.0 ms | 53d | 2 | bef1ba8e504d1cba |
| 2026-10-07T04:20:41Z | ✓ | B | ✓ | 49.0 ms | 54d | 2 | bef1ba8e504d1cba |
| 2026-10-06T22:19:15Z | ✓ | B | ✓ | 75.0 ms | 54d | 2 | bef1ba8e504d1cba |
| 2026-10-06T16:18:43Z | ✓ | B | ✓ | 69.0 ms | 54d | 2 | bef1ba8e504d1cba |
| 2026-10-06T10:17:24Z | ✓ | B | ✓ | 87.0 ms | 54d | 2 | bef1ba8e504d1cba |
| 2026-10-06T04:16:21Z | ✓ | B | ✓ | 63.0 ms | 55d | 2 | bef1ba8e504d1cba |
| 2026-10-05T22:15:20Z | ✓ | B | ✓ | 66.0 ms | 55d | 2 | bef1ba8e504d1cba |