Prove the route with one small request.

Create a key, pin a current model ID, run a bounded request, and keep the usage record with the dated rate.

Start with the question in front of you.

Public request contract

NeedEndpointEvidence
List account-visible model IDsGET /v1/modelsAuthenticated response
Send a chat requestPOST /v1/chat/completionsResponse + usage
Check dated public ratesGET /api/v1/pricingSnapshot checked 2026-09-10
Inspect service stateGET /statusPublic status page
Keep the layers separate.

The public rate snapshot is planning evidence. The request ledger is the account charge. A supplier's direct rate is neither of those.