openclaw/docs/providers/bedrock-mantle.md

summary, read_when, title

summary	read_when	title
Use Amazon Bedrock Mantle OpenAI-compatible and Claude Messages models with OpenClaw	You want to use Bedrock Mantle hosted OSS models with OpenClaw You need the Mantle OpenAI-compatible endpoint for GPT-OSS, Qwen, Kimi, or GLM You want to use Claude Sonnet 5 or Mythos 5 through Amazon Bedrock Mantle	Amazon Bedrock Mantle

OpenClaw includes a bundled Amazon Bedrock Mantle provider that connects to the Mantle OpenAI-compatible endpoint. Mantle hosts open-source and third-party models (GPT-OSS, Qwen, Kimi, GLM, and similar) through a standard /v1/chat/completions surface backed by Bedrock infrastructure. Mantle also exposes Anthropic Claude models through an Anthropic Messages route.

Property	Value
Provider ID	amazon-bedrock-mantle
API	openai-completions for discovered OSS models, anthropic-messages for Claude models
Auth	Explicit AWS_BEARER_TOKEN_BEDROCK or IAM credential-chain bearer-token generation
Default region	us-east-1 (override with AWS_REGION or AWS_DEFAULT_REGION)

Getting started

Choose your preferred auth method and follow the setup steps.

**Best for:** environments where you already have a Mantle bearer token.

<Steps>
  <Step title="Set the bearer token on the gateway host">
    ```bash
    export AWS_BEARER_TOKEN_BEDROCK="..."
    ```

    Optionally set a region (defaults to `us-east-1`):

    ```bash
    export AWS_REGION="us-west-2"
    ```
  </Step>
  <Step title="Verify models are discovered">
    ```bash
    openclaw models list
    ```

    Discovered models appear under the `amazon-bedrock-mantle` provider. No
    additional config is required unless you want to override defaults.
  </Step>
</Steps>

**Best for:** using AWS SDK-compatible credentials (shared config, SSO, web identity, instance or task roles).

<Steps>
  <Step title="Configure AWS credentials on the gateway host">
    Any AWS SDK-compatible auth source works:

    ```bash
    export AWS_PROFILE="default"
    export AWS_REGION="us-west-2"
    ```
  </Step>
  <Step title="Verify models are discovered">
    ```bash
    openclaw models list
    ```

    OpenClaw generates a Mantle bearer token from the credential chain automatically.
  </Step>
</Steps>

<Tip>
When `AWS_BEARER_TOKEN_BEDROCK` is not set, OpenClaw mints the bearer token for you from the AWS default credential chain, including shared credentials/config profiles, SSO, web identity, and instance or task roles.
</Tip>

Automatic model discovery

When AWS_BEARER_TOKEN_BEDROCK is set, OpenClaw uses it directly. Otherwise, OpenClaw attempts to generate a Mantle bearer token from the AWS default credential chain. It then discovers available Mantle models by querying the region's /v1/models endpoint.

Behavior	Detail
Discovery cache	Results cached for 1 hour per region; a fetch failure returns the last cached result
IAM token refresh	Every 2 hours, cached per region

To keep the Mantle plugin enabled but suppress automatic discovery and IAM bearer-token generation, disable the plugin-owned discovery toggle:

openclaw config set plugins.entries.amazon-bedrock-mantle.config.discovery.enabled false

The bearer token is the same `AWS_BEARER_TOKEN_BEDROCK` used by the standard [Amazon Bedrock](/providers/bedrock) provider.

Supported regions

us-east-1, us-east-2, us-west-2, ap-northeast-1, ap-south-1, ap-southeast-3, eu-central-1, eu-west-1, eu-west-2, eu-south-1, eu-north-1, sa-east-1.

Manual configuration

If you prefer explicit config instead of auto-discovery:

{
  models: {
    providers: {
      "amazon-bedrock-mantle": {
        baseUrl: "https://bedrock-mantle.us-east-1.api.aws/v1",
        api: "openai-completions",
        auth: "api-key",
        apiKey: "env:AWS_BEARER_TOKEN_BEDROCK",
        models: [
          {
            id: "gpt-oss-120b",
            name: "GPT-OSS 120B",
            reasoning: true,
            input: ["text"],
            cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
            contextWindow: 32000,
            maxTokens: 4096,
          },
        ],
      },
    },
  },
}

An explicit non-empty models list is authoritative and replaces every discovered row, including the Claude rows below. Omit models to retain the automatic Mantle catalog, or include the complete Claude model entries you want to use.

Advanced configuration

Reasoning support is inferred from model IDs containing patterns like `thinking`, `reasoner`, `reasoning`, `deepseek.r`, `gpt-oss-120b`, or `gpt-oss-safeguard-120b`. OpenClaw sets `reasoning: true` automatically for matching models during discovery. If the Mantle endpoint is unavailable, returns no models, or bearer-token resolution fails, discovery returns an empty result and the implicit provider is skipped. OpenClaw does not error; other configured providers continue to work normally. When automatic discovery owns the model list, OpenClaw appends four Claude models after a successful lookup, regardless of what `/v1/models` returns: `amazon-bedrock-mantle/anthropic.claude-sonnet-5` (Claude Sonnet 5), `amazon-bedrock-mantle/anthropic.claude-opus-4-7` (Claude Opus 4.7), and `amazon-bedrock-mantle/anthropic.claude-mythos-5` (Claude Mythos 5), plus `amazon-bedrock-mantle/anthropic.claude-mythos-preview` (Claude Mythos Preview). They use the `anthropic-messages` API surface and stream through the same bearer-authenticated Anthropic-compatible endpoint (`/anthropic`), so the AWS bearer token is not treated like an Anthropic API key.

Claude Sonnet 5 always uses adaptive thinking and defaults to `high`
effort. `/think off` and `/think minimal` map to `low` because the Mantle
route cannot disable thinking. OpenClaw also omits custom temperature for
Sonnet 5 requests.

Claude Mythos 5 is limited access. It publishes a 1,000,000-token context
window and 128,000-token output limit, always uses adaptive thinking, maps
`/think off` and `/think minimal` to `low`, and omits caller-selected
sampling parameters.

Claude Mythos Preview always requests reasoning, defaulting to `high`
effort when no `/think` level is set (mapped from `xhigh`/`max` down to
`high`, and `minimal` up to `low`). Opus 4.7 on Mantle streams without
model-provided reasoning, and OpenClaw omits its `temperature` parameter
since Opus 4.7 does not accept sampling overrides on this route; Mythos
Preview accepts a `temperature` override normally.

A non-empty explicit `models.providers["amazon-bedrock-mantle"].models`
list replaces the complete discovered catalog. Omit that list when you
want these built-in Claude rows.

Bedrock Mantle is a separate provider from the standard [Amazon Bedrock](/providers/bedrock) provider. Mantle uses an OpenAI-compatible `/v1` surface for its OSS catalog, while the standard Bedrock provider uses the native Bedrock Converse API.

Both providers share the same `AWS_BEARER_TOKEN_BEDROCK` credential when
present.

Related

Native Bedrock provider for Anthropic Claude, Titan, and other models. Choosing providers, model refs, and failover behavior. Auth details and credential reuse rules. Common issues and how to resolve them.