Tell us what you are building and we will set you up with sandbox credentials. The sandbox mirrors production, so you can have a working prototype before you commit to anything.
This is a short enquiry, not an automated sign-up. We read every submission so we can set your sandbox up correctly the first time.
If you would rather talk it through first, email us at partnership@mercury.global.
A sandbox API key, secret key and base URL. A full replica of production, with no real money movement.
We review your enquiry and get in touch to set up your access. We will be in touch shortly.
Same API surface, separate credentials. Going live is a base URL change. Production keys follow an integration review.
You do not need credentials to read the documentation. Map out your integration while we review your enquiry.
How to sign and authorise your requests, and how your sandbox keys fit together.
Read the guideA working call against the sandbox, start to finish, so you can see the shape of it.
Walk through itEvery endpoint, parameter and response, with examples you can copy.
Browse the reference