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.
Certificate recorded, valid to 2027-05-01
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Added "compare_bill_amount" (12 tools before, 13 now)
Compares one dollar amount from a medical bill or explanation of benefits with the typical allowed-amount range (low, median, high) for the same procedure in the same US state, and says whether it is below, within or above that range, with questions worth asking the billing office. Pass amount_type 'billed' for the charge on the bill or 'allowed' for the insurer's allowed amount. Billed charges are usually higher than allowed amounts, so a high billed charge alone is not an error. Needs only the procedure, state and amount; do not send names, dates, account or member numbers.
Unknown → Live
First tool surface recorded: 12 tools (server version 2.0.0)
https://mcp.costkits.com/mcp (mcp_streamable_http) — from mcp_registry
Showing the latest 6 events. The API returns up to 500 and filters by kind: ?kind=tool_surface_changed