API access to usage limits and total monthly usage

Feature Request

Request for an API endpoint (or enhancement to the existing OAuth usage endpoint) that exposes:

• Current monthly usage totals
• Account/plan usage limits
• Remaining quota

Use Case

Programmatic access to usage data enables automated throttling and capacity planning. Currently, the OAuth usage endpoint provides rolling-window consumption percentages, but there is no way to retrieve absolute usage numbers or plan limits via API.

Desired Behavior

An API endpoint that returns structured data including:

• Total tokens/requests used in the current billing period
• Plan-level limits (tokens, requests, spend caps)
• Remaining quota before limits are reached