The workspace's credit wallet, open to every member: available (spendable now), held (reserved by running work), granted and remaining over the active lots, next_expiry_at with next_expiry_amount (the dated lots alone; the plan's credits live with the plan), next_grant_at (the next monthly grant); counts.total_count is the active lots. One US dollar is 25 credits. A run's cost is its estimate (/mcp/playtables/columns); what was spent is the credit ledger (/mcp/playtables/sources).

Contract:

• MCP tool get_credit_lots_metrics, registry package mcp.id/credit_lots, mount id.billing.
• Operation metrics, response envelope metrics.
• Flags: read only.