# KSee.io > Currency conversion and exchange rate API with market and named central bank rate sources. This optional navigation file is not a ranking signal or evidence of AI search citations. Rates are informational; check source and publication timestamps. ## Public documentation - [Currency conversion and exchange rate API](https://ksee.io/): Convert currencies, compare market rates and official central bank benchmarks, and integrate the KSee exchange rate API into your application. - [Currency markets and conversion terminal](https://ksee.io/markets): Explore currency and digital asset prices, select a conversion pair and inspect market rate sources in the KSee markets terminal. - [Official central bank exchange rate sources](https://ksee.io/central-banks): Explore official central bank exchange rate sources, supported currencies and publication details for reference-rate conversions with KSee. - [Exchange rate API playground](https://ksee.io/playground): Try KSee currency conversion requests in the interactive API playground with source selection, parameters and developer examples. - [Currency API documentation](https://ksee.io/docs): Integrate the KSee currency API using conversion requests, source modes, authentication, quota headers and copyable developer examples. - [API service status](https://ksee.io/status): Inspect KSee API service status and recent availability observations. Check current status before investigating exchange rate request failures. - [Forex, Web3 and edge architecture blog](https://ksee.io/blog): Technical articles, edge SSR architecture, and institutional currency engineering insights from KSee. - [Terms of service](https://ksee.io/terms): Read the KSee terms of service covering API access, acceptable use, exchange rate data and developer responsibilities. - [Privacy policy](https://ksee.io/privacy): Read how KSee handles account information, API usage information, privacy requests and website analytics preferences. - [Cookie policy and preferences](https://ksee.io/cookies): Understand KSee cookie usage and analytics preferences, and learn how to manage consent through the website cookie controls. ## API - Base URL: https://api.ksee.io/api/v1 - Example: GET /convert?from=EUR&to=USD&amount=100 - Optional authentication: Authorization: Bearer - Observe X-RateLimit-Limit, X-RateLimit-Remaining and X-RateLimit-Reset headers. - Do not expose developer tokens or attempt to access private administration pages.