Contact
A person reads these, not a queue.
Accounts, keys, top-ups, a rate that looks wrong, or something you want the API to do. Send it here and the reply comes by email — there is no ticket number to quote later.
Email directly
duplexinterface@outlook.comPrefer your own mail client? The address above reaches the same inbox as the form. Write from the email registered to your account and it is faster to trace.
Created and operated solely by Gurutva Murdia. Support is answered directly — there is no ticket queue behind this address.
Faster without us
- Rate limits, parameters and response fields are all in the API reference.
- Whether you need a key at all is answered in the questions page.
- What the API is serving this minute is on the status page.
Billing and refunds
Include the PayPal order or capture id from your receipt — the purchase history in the rate desk lists every order with its identifier. Refund terms are on the refund policy page.
Security reports
Say what you did, what you observed and how to reproduce it, and give us a chance to fix it before disclosing publicly. The security page sets out what is in scope.
Data corrections
Name the currency code, the response timestamp and the figure you expected to see. Rates are reference data, so we will tell you plainly if the source is right and we are reading it correctly.
Try the endpoint first.
Most questions here are answered by one call to the open endpoint — no key, no account, current rates and the full catalogue.
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