USPS Holiday Shipping Deadlines MCP Server

by theluckystrike Your server? Claim it

answering

USPS Holiday Shipping Deadlines MCP is answering right now. Last checked 10 min ago. It exposes 3 tools. Last commit 5 Nov 2026.

USPS holiday shipping deadlines: Christmas send-by dates, days left, military and international.

Uptime history 4 days of history

4 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

224 ms

Response time

average over 24h

Stars

last commit 5 Nov 2026

Nothing serious here today

Today is the operative word: we check USPS Holiday Shipping Deadlines MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 10 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add usps-holiday-shipping-deadlines-mcp --transport http https://usps-holiday-shipping-deadlines-mcp.lipmichal.workers.dev/mcp

Settings → Connectors → Add custom connector, then paste this address

https://usps-holiday-shipping-deadlines-mcp.lipmichal.workers.dev/mcp

~/.codex/config.toml

[mcp_servers.usps-holiday-shipping-deadlines-mcp]
url = "https://usps-holiday-shipping-deadlines-mcp.lipmichal.workers.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "usps-holiday-shipping-deadlines-mcp": {
      "url": "https://usps-holiday-shipping-deadlines-mcp.lipmichal.workers.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "usps-holiday-shipping-deadlines-mcp": {
      "type": "http",
      "url": "https://usps-holiday-shipping-deadlines-mcp.lipmichal.workers.dev/mcp"
    }
  }
}

Available tools 3

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

holiday

check_holiday_ship_by_date

For a ship date (default today, US Eastern) and a destination, lists each USPS service with its send-by date, days left and whether it is still on time for December 25, and names the slowest (usually cheapest) service still on time. Destination can be "lower48", a state or territory ("Alaska", "Hawaii", "Puerto Rico", "Guam"), a country ("Canada", "Germany", "Japan"), a USPS region ("Europe") or an APO/FPO/DPO ZIP ("APO 09021").

military

get_military_mail_deadline

USPS holiday send-by dates for December 25 delivery to one APO/FPO/DPO ZIP code (090-099 AE, 340 AA, 962-966 AP): Ground Advantage, First-Class Mail, Priority Mail and Priority Mail Express Military Service.

usps

get_usps_holiday_shipping_deadlines

The USPS recommended send-by dates for delivery before December 25 for the current holiday season, read at call time from usps.com: Ground Advantage, First-Class Mail, Priority Mail and Priority Mail Express to the lower 48 and to Alaska, Hawaii, Puerto Rico and territories; First-Class Package International, Priority Mail International and Priority Mail Express International by world region; and APO/FPO/DPO military mail by ZIP group. Includes days left from today.

Endpoints

URL	Transport	State	Latency	Checked
https://usps-holiday-shipping-deadlines-mcp.lipmichal.workers.dev/mcp	streamable-http	answering	339 ms	10 min ago

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USPS Holiday Shipping Deadlines MCP — questions

Answers built from our own checks of this server.

What can USPS Holiday Shipping Deadlines MCP do?

It exposes 3 tools, read directly from the server on our last check. Among them: check_holiday_ship_by_date, get_military_mail_deadline, get_usps_holiday_shipping_deadlines. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is USPS Holiday Shipping Deadlines MCP working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 224 ms. The bar chart above shows every period we have measured.

How do I connect USPS Holiday Shipping Deadlines MCP?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does USPS Holiday Shipping Deadlines MCP need an API key?

No. USPS Holiday Shipping Deadlines MCP completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is USPS Holiday Shipping Deadlines MCP?

It answers our handshake in 224 ms on average, which is faster than 60% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is USPS Holiday Shipping Deadlines MCP open source?

The code is open source: it is published under the MIT licence, written in TypeScript and 0 stars on GitHub. The licence covers the code in the repository, not the hosted service at usps-holiday-shipping-deadlines-mcp.lipmichal.workers.dev, which runs on its operator's own terms.