API reference
Browse endpoints, parameters, response schemas and examples from our OpenAPI contract using Swagger UI.
Requests use your API quota and rate limits. Your key stays in this page’s memory and is sent only in the X-API-Key header when you execute a request. It is cleared when you reload or leave this page. GET endpoints accept API keys; the health check needs no key. Session-only endpoints and write operations cannot run here.
Examples illustrate the contract; they are not live market data. Execute a request to see an actual response.
Loading API reference…
Price data and limits
Requests read cached observations. Metal observations refresh hourly; they are not live quotes. Prices are indicative and are not executable trading prices.
Latest responses carry observation timestamps. History uses weekday closes and includes stored coverage; a five-year query limit does not guarantee five years of data. Missing or sparse history is possible. Currency conversion has its own timestamp and freshness limits.
Keep decimal values as strings to preserve precision. Read the price methodology, quota and rate limits and permitted uses before integrating.