FrankKi is answering right now. Last checked 2 min ago. It exposes 4 tools. Last commit 31 Oct 2026.
The agentic layer of letters. Agents send real printed mail worldwide, German compliance built in.
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 13 September 2026. No other catalogue keeps this.
Today is the operative word: we check FrankKi every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.
claude mcp add letters --transport http https://mcp.frankki.app
https://mcp.frankki.app
[mcp_servers.letters]
url = "https://mcp.frankki.app"
{
"mcpServers": {
"letters": {
"url": "https://mcp.frankki.app"
}
}
}
{
"servers": {
"letters": {
"type": "http",
"url": "https://mcp.frankki.app"
}
}
}
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
address_validate
mcp_health
pricing_tiers
shipping_quote
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://mcp.frankki.app | streamable-http | answering | 158 ms | 2 min ago |
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Answers built from our own checks of this server.