Every change Wellknown observed on this MCP server, newest first, with what it was before and what it became. Tool-surface changes carry the definition diff. Nothing here is edited after the fact.
Unknown → Unavailable
Certificate recorded, valid to 2026-12-12
https://castle.usefulapi.io/mcp (mcp_streamable_http) — from mcp_registry, with the record
Showing the latest 3 events. The API returns up to 500 and filters by kind: ?kind=tool_surface_changed