Agent Metering

Create a usage meter between a provider and a consumer agent. unit: what is being counted (call, token, kwh, ...). Price is in minor currency units (cents) per unit. Returns the meter_id.

Record a usage event. Idempotent on event_id (safe to retry — never double-billed). outcome is 'ok' or 'error' and feeds the SLA report.

Totals for a meter: event count, total quantity, accrued minor units.

Pure SLA report: success_rate vs sla_target, breach flag. No mutation.

Freeze all open events into an immutable invoice (exactly-once). The invoice amount is what agent-escrow-agent should settle.

Verify the tamper-evident event hash chain for a meter.

List all meters with event/invoice counts.

Read usage events (paginated, read-only). Filter by meter, provider, consumer_class (internal|external|unknown), channel, outcome (ok|error), and ISO date range [since, until). Test-flagged events are excluded unless include_test=true. Returns events + next_cursor.

Usage time series bucketed on each event's recorded_at (UTC; bucket=day|hour), grouped across meters by provider — a real time-series primitive, independent of meter creation times. Includes per-bucket breakdowns by consumer_class / channel / provider. est_accrued_minor is an estimate; authoritative billing stays with usage_summary.

Admin: flag/unflag a meter as test/synthetic so its events are excluded from usage statistics by default. Touches meter metadata only — never events, never the hash chain, never billing accruals. Requires the server's VIRIDIS_ADMIN_TOKEN.

Fleet-standard self-description.