Remote MCP · Endpoint

3LT Letter Mail MCP server

No. 3LT Letter Mail answered an MCP handshake 7 hours ago.

UpLast checked 7 hours ago

Server URL

https://3lgrouptechnology.com/mcp

The last check completed an MCP handshake.

Registry name
com.3lgrouptechnology/3lt-letter-mail
Transport
Streamable HTTP
Protocol negotiated
2025-06-18
Handshake latency
371 ms
Tools exposed
7 tools
Uptime, last 30 days
100% from 13 checks
Described by its publisher as
Give AI assistants hands: send real USPS letters via MCP.
Repository
https://github.com/3LGroupTechnology/3lt-letter-mail
Listing
From the official MCP registry (active).
Recent checks of 3LT Letter Mail
CheckedResultHandshake
7 hours agoHandshake completed371 ms
2 days agoHandshake completed373 ms
5 days agoHandshake completed345 ms
7 days agoHandshake completed375 ms
9 days agoHandshake completed339 ms
11 days agoHandshake completed404 ms
13 days agoHandshake completed335 ms
15 days agoHandshake completed333 ms
17 days agoHandshake completed350 ms
19 days agoHandshake completed341 ms
20 days agoHandshake completed333 ms
21 days agoHandshake completed332 ms
23 days agoHandshake completed333 ms

The last 13 checks. Full history is kept for 30 days; the all-time counter stands at 13 responding of 13.

How to read this

  • ·Handshake latency is one measurement from one probe, from our infrastructure. It is a smoke signal about the endpoint, not a benchmark of your own connection to it.
  • ·An authentication challenge counts as responding. A hosted server that refuses an anonymous prober is behaving correctly.
  • ·A tool count of “behind credentials” means the handshake worked but listing tools needed a token we do not hold.
  • ·Uptime covers the last 30 days of our own checks, at most one an hour, and says how many checks it is drawn from.

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Listing data comes from the official MCP registry. Glide is not affiliated with 3LT Letter Mail and makes no claim about it beyond what these checks measured.