If you're shipping AI features, you already have usage data. The problem is that it's split across providers, keys, and dashboards, so it's hard to answer basic questions before the bill shows up. You've probably felt the drift into after-the-fact reconciliation. Provider consoles only show their own slice, so you end up exporting CSVs, rebuilding views in spreadsheets, and still missing the context that matters, like your tags, feature boundaries, and internal user IDs. When BYOK enters the picture, it gets worse because spend and usage scatter across whatever keys your users bring. The Custom Reporting API for  AI Gateway  is now available in beta for teams on the Pro and Enterprise plans. It gives you programmatic access to cost, token usage, and request volume across your AI Gateway traffic, including BYOK requests. You can break down spend by model, provider, user ID, custom tag, or credential type.…