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Every MBKYC artifact — SDKs, desktop service packages, the C library — is published to a private Nexus repository. All downloads require authentication, so before you can pull anything you need two things from your ICP contact:
1

Your Nexus host

The base URL of your repository, e.g. https://repo.client.ae. Throughout these docs we use repo.client.ae as a placeholder — replace it with the host you’re given.
2

A service-account username & password

A read-only account scoped to your organization’s repositories. Treat it like any other secret.
These Nexus credentials are only for downloading packages. They are unrelated to your API key (used at runtime to authenticate SDK calls) — see API keys.

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Authenticating a download

Every package manager has its own way to store credentials (covered in Configure your package manager). The lowest-common-denominator that always works is HTTP basic auth with curl -u: 
# Set once in your shell
export NEXUS_USER="your-username"
export NEXUS_PASSWORD="your-password"

# Download any raw artifact (example: the Swift XCFramework)
curl -fsSL -u "$NEXUS_USER:$NEXUS_PASSWORD" \
  https://repo.client.ae/repository/mbkyc-raw/mbkyc/swift-sdk/0.5.0/MBKYCSDK.xcframework.zip \
  -o MBKYCSDK.xcframework.zip
The same -u "$NEXUS_USER:$NEXUS_PASSWORD" pattern works for any raw artifact — SDK bundles, the macOS/Linux/Windows service packages, and the GPG signing key.
A 401 means your credentials didn’t reach the server. Double-check the username/password, that the host is correct, and that your account is authorized for that repository. If your password contains shell-special characters (@, $, !, …), wrap it in single quotes or let curl prompt for it (-u "$NEXUS_USER").

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Keep credentials out of source control

Never commit Nexus credentials. Use environment variables, a credentials file outside the repo (e.g. ~/.netrc, ~/.gradle/gradle.properties), or your CI secret store. The per-manager setup in Configure your package manager shows the right place for each toolchain.

Next: pick your package

See the package matrix for the exact artifact and version for your platform.