CitiConnect WorldLink Payment Services API
The CitiConnect WorldLink Payment Services API delivers cross-border, multi-currency payment capabilities within the CitiConnect suite, including FX rate enquiry, FX deal booking, and cross-border payment initiation with 24x7 availability. WorldLink lets corporate and institutional clients send payments in a wide range of currencies without maintaining local currency accounts. It is part of Citi's Treasury and Trade Solutions API portfolio, secured with OAuth 2.0 and mutual TLS, and documented in the CitiConnect developer sandbox. Documentation is partner-gated; no public OpenAPI is published.