Sandbox and evaluation API
IT teams should not have to reverse-engineer a Flutter canvas. The public OpenAPI is an evaluation specification. A sandbox URL is issued under NDA after a hosted request.
Download /nexus/openapi.yaml (OpenAPI 3.0). Operations: inspect ISO 20022 messages, list alerts, read an IMTO profile. The server URL in that file is a placeholder. It is not a public production endpoint.
To request a sandbox tenancy: name your institution, corridors, and technical contact on the hosted form. We reply within two business days. Do not send live customer data.
Procurement questions
How do we obtain a vendor security pack?
Use the hosted enquiry form with your institution, corridor, and NDA contact. Architecture specifications and one-pagers are released under NDA. See how to request a Nexus vendor pack.
Can Nexus run air-gapped for national cybersecurity localisation?
Yes. Supported postures include Linux cloud-native and on-premises air-gapped deployments, including themes in SAMA / NCA localisation guidance.