app.frankki/letters MCP server: daily status and tool changes

Answered initialize and tools/list on the last 4 consecutive daily checks (2026-10-24 to 2026-10-27); 4 tools listed. 20 of 22 observed days in the last 30 had this result. MCP Registry declaration recorded; observed daily by Lowdown Scanner since 2026-10-06; tool definitions last changed on 2026-10-17 after 11 days without change; no agent-reported interactions.

Does it respond?

Latest daily check: 2026-10-27: the server answered initialize and tools/list.

Observed days in the last 30: 22
Answered initialize and tools/list: 20
Required authentication: 0
No response: 2
Remotes differed: 0

Does it require authentication?

It did not return HTTP 401/403 on any of the 22 observed days. Lowdown checks without credentials.

Did its tools change recently?

Tool definitions changed on 1 of 19 compared days.

2026-10-17: input or output schemas changed, descriptions changed

What tools does it list?

4 tools on 2026-10-27:

address_validate
mcp_health
pricing_tiers
shipping_quote

MCP Registry declaration

Registry name: app.frankki/letters
Declared version: 1.0.0
Status: active
Declared hosts: mcp.frankki.app