get_v1_usage_activity

Activity returns the per-day usage series for ONE authorized subject — the points a contribution heatmap and a timeline are drawn from, gap-filled so every day in the range is present. Authorization is resolved server-side from the validated principal, so a caller can never widen the subject past what they are entitled to: a non-admin reads only themselves and their own org. subject=project answers empty with a note, because the usage ledger records no project column yet. When the warehouse is not connected the series answers empty with available=false rather than fabricated days.

Arguments

This tool's schema does not declare which fields are required, nor any default, nor any enumerated value set. The columns above are empty because the door publishes nothing there, not because the answer is "none" — where a field is constrained, the constraint is stated in that field's own description.

Call it

A tools/call carries every argument in one flat object — nothing binds to a path or a query string. Every declared argument is shown, because the door marks none of them required.

curl -X POST https://api.hanzo.ai/v1/mcp \
  -H "Authorization: Bearer $HANZO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
       "jsonrpc": "2.0",
       "id": 1,
       "method": "tools/call",
       "params": {
         "name": "get_v1_usage_activity",
         "arguments": {
           "from": "<from>",
           "id": "<id>",
           "subject": "<subject>",
           "to": "<to>"
         }
       }
     }'

Values are placeholders derived from each field's declared type. tools/list needs no credential; tools/call does — called without one the door answers HTTP 200 with a JSON-RPC result whose isError is set and whose text says what was missing. How to get a key →

The operation behind it

The same capability over plain HTTP is in the usage API reference, on https://api.hanzo.ai.

All 834 tools · The door · API reference

Generated from tools/list on https://api.hanzo.ai/v1/mcp — 834 tools captured 2026-08-01 (this build read the vendored copy; the door was unreachable).