Postly MCP Server

by gustavmakes Your server? Claim it

answering

Postly is answering right now. Last checked 8 min ago. It exposes 7 tools.

Send printed letters to Danish addresses: regular or registered mail, printed and posted for you.

Uptime history 70 hours of history

70 hours agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

325 ms

Response time

average over 24h

open, no key

Access

streamable-http

What changed 2

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 6 November 2026. No other catalogue keeps this.

6 Nov a tool changed the parameters it asks for2 times that day send_letter

and 1 more, back to 6 November 2026

Nothing serious here today

Today is the operative word: we check Postly 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 8 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add postly --transport http https://postly.dk/api/public/v1/mcp

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

https://postly.dk/api/public/v1/mcp

~/.codex/config.toml

[mcp_servers.postly]
url = "https://postly.dk/api/public/v1/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "postly": {
      "url": "https://postly.dk/api/public/v1/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "postly": {
      "type": "http",
      "url": "https://postly.dk/api/public/v1/mcp"
    }
  }
}

Available tools 7

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

letter

create_letter_order

Opretter et fysisk tekstbrev i Danmark og returnerer et betalingslink. Brugeren skal selv åbne linket og betale; brevet sendes først, når betalingen er gennemført. Kræver ingen API-nøgle. Bekræft altid modtagerens adresse og prisen med brugeren først.

get_letter_status

Viser status for et tidligere sendt brev ud fra dets id.

balance

get_balance

Viser den forudbetalte saldo og kontostatus for den tilknyttede API-kunde.

letters

list_letters

Lister de seneste breve sendt af denne konto.

order

get_order_status

Viser status for en ordre oprettet med create_letter_order, fx om den er betalt eller afsendt.

pricing

get_pricing

Henter Postlys aktuelle priser for almindelige og rekommanderede breve.

send

send_letter

Sender et fysisk brev i Danmark. Beløbet trækkes fra den forudbetalte saldo, og brevet kan ikke annulleres efter afsendelse.

Endpoints

URL	Transport	State	Latency	Checked
https://postly.dk/api/public/v1/mcp	streamable-http	answering	238 ms	8 min ago

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Postly — questions

Answers built from our own checks of this server.

What can Postly do?

It exposes 7 tools, read directly from the server on our last check. Among them: create_letter_order, get_balance, get_letter_status, get_order_status, get_pricing, list_letters and 1 more. 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 Postly 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 325 ms. The bar chart above shows every period we have measured.

How do I connect Postly?

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 Postly need an API key?

No. Postly completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 7 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Postly?

It answers our handshake in 325 ms on average, which is faster than 44% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.