Learn about Mambu Payments (formerly Numeral) environments
Environments
To facilitate your API integration developments and tests, Mambu Payments offers distinct sandbox and production environments.
The sandbox environment is a safe playground. It is not connected to your bank accounts and can be safely used to develop and test your integration. It is pre-loaded with sample data.
The production environment is connected to your bank accounts.
Environment URLs
| Environment | IP whitelisting | mTLS |
|---|---|---|
| Shared EU sandbox | https://sandbox.numeral.io (IP whitelisting not available) | https://mtls.sandbox.numeral.io (mTLS optional) |
| Shared EU production | https://api.numeral.io | https://mtls.api.numeral.io |
| Shared UK production | https://api.uk.numeral.io | https://mtls.api.uk.numeral.io |
| Shared US production | Planned Q1 2026 | Planned Q1 2026 |
| Dedicated production / sandbox | Customer-specific | Customer-specific |
In sandbox, IP whitelisting is not available and mTLS is optional. This means customers can authenticate their requests using an API key as a single level of authentication. Learn more in Authentication.
Using sandbox and production environments for load test or penetration test purposes is not authorised and might result in the suspension of your access.
Environment IPs
Events sent by Mambu Payments will always originate from the same IPs. We recommend filtering the following IPs.
Main instance
13.37.193.204
13.37.147.243
15.237.134.222
DR instance
63.176.1.212
18.156.167.193
18.153.249.10218.169.180.178
51.24.0.135
18.130.216.4813.37.79.36Dedicated instances have their own set of IPs. If you are on a dedicated instance, contact [email protected] to receive the list of IPs to filter.