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Bedrock Mantle is Amazon Bedrock’s Anthropic-native API surface. Unlike the standard Bedrock provider, Mantle speaks the Anthropic Messages API directly and authenticates with a bearer token rather than the AWS SigV4 credential chain, so no AWS CLI, named profile, or IAM Identity Center setup is needed on the device. To use it, set inferenceProvider to mantle and supply a region and bearer token (or a credential helper that returns one).

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Configuration keys

Mantle reuses the Bedrock key names; keys not listed here (inferenceBedrockProfile, inferenceBedrockSso*, inferenceBedrockAwsDir, inferenceBedrockAwsCliPath, inferenceBedrockServiceTier) are ignored for this provider.
SettingRequiredDescription
AWS region
inferenceBedrockRegion		YesAWS region for the Mantle endpoint, for example us-east-1. Used to construct bedrock-mantle.<region>.api.aws when no base URL is set.
AWS bearer token
inferenceBedrockBearerToken		One credential sourceBearer token for Bedrock Mantle. May be supplied dynamically by an inferenceCredentialHelper executable instead.
Bedrock base URL
inferenceBedrockBaseUrl		NoOverride the regional Mantle endpoint. Provide the full SDK base URL including the /anthropic path, for example https://bedrock-mantle.us-east-1.api.aws/anthropic. A bare hostname is coerced to https://; http:// is accepted with a warning.
You must also set inferenceModels; Mantle has no model-list endpoint, so model discovery is not available. As with the standard Bedrock provider, server-side Web Search is not supported. See the Configuration reference.

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Configure in the app

Open the in-app configuration window (Developer → Configure third-party inference). In the Connection section, set Inference provider to Bedrock Mantle, then fill in the credentials card:
FieldValue
AWS regione.g. us-east-1
AWS bearer tokenyour Mantle bearer token
Bedrock base URLoptional
Under Models, add at least one Model list entry. Then click Export to produce a .mobileconfig (macOS) or .reg (Windows) file for your MDM. See Installation and setup for the export and deployment workflow.