{"openapi":"3.1.0","info":{"title":"Sila API","version":"1.0.0","description":"Sila is an API-first benefits platform. v1 exposes the public savings model; authenticated resources (members, claims, balances) follow."},"servers":[{"url":"/api"}],"paths":{"/v1/health":{"get":{"summary":"Health check — confirms the API is up.","parameters":[],"responses":{"200":{"description":"Success"}}}},"/v1/savings/estimate":{"get":{"summary":"Estimate the surplus that could belong to an employer.","parameters":[{"name":"currentAnnualCost","in":"query","required":true,"schema":{"type":"number"},"description":"What the employer pays for their plan today, per year (dollars)."},{"name":"size","in":"query","required":true,"schema":{"type":"string","enum":["small","medium","large"]},"description":"Employer size band."},{"name":"employees","in":"query","required":false,"schema":{"type":"integer"},"description":"Headcount, for per-employee figures."}],"responses":{"200":{"description":"Success"},"400":{"description":"Invalid parameters (application/problem+json)"}}}}}}