Every API model is served by a third-party provider, and some quietly serve a smaller version or break tool calls. Mira's new Sterling router tests those providers and sends requests only to the ones that pass its checks.

Developers pick a model, get one API key and change the base URL, with no other code changes. For launch, Sterling offers Claude, GPT and Gemini at up to 50% below list price, paid as you go in USDC via x402 or in $MIRA.

Checks run throughout the day on five dimensions: model identity against a reference, tool calls, honoured parameters, silent failures and declared context. Scores are public per model and per provider, and a provider that fails is routed to last.

Mira points to a four-month study of 189 endpoints that found 37 undisclosed changes across 29 of them. The product is in beta, and scores reflect automated test results only.