Bedrock

Runtime provider id: bedrock. Talks to Amazon Bedrock’s Converse API.

Provider options

Field	Type	Notes
region	string	Optional. AWS region.
accessKeyId	string	Optional. Must be provided together with secretAccessKey.
secretAccessKey	string	Optional. Must be provided together with accessKeyId.
sessionToken	string	Optional. For temporary credentials.
apiKey	string	Optional. Alternate Bedrock API key auth.
reasoning	object	Optional. See Reasoning.

Bedrock can rely on the AWS default credential chain (environment, shared config, instance role, etc.) when explicit credentials are omitted — in that case leave accessKeyId/secretAccessKey/apiKey unset and set only region (or nothing, to use the default region too).

Reasoning

Providing reasoning enables extended thinking on supported models (e.g. Claude on Bedrock), sent as thinking: { type: "enabled", budget_tokens }. effort defaults to medium and always maps to an explicit budget_tokens (Converse requires one):

effort	budget_tokens
minimal	1024
low	2048
medium	4096
high	8192

display applies to Bedrock Claude: newer models (Opus 4.7+) default reasoning display to omitted; set display: "summarized" to receive the reasoning trace. Setting display switches the request to adaptive thinking with output_config.effort (required by Opus, accepted by Sonnet).

Example configs

Using the AWS default credential chain:

{
  "name": "Bedrock",
  "provider": "bedrock",
  "options": {
    "region": "us-east-1"
  }
}

{
  "name": "Claude Sonnet (Bedrock)",
  "provider": "Bedrock",
  "options": {
    "model": "anthropic.claude-sonnet-4-5-20250929-v1:0"
  },
  "default": true
}

With explicit credentials and reasoning display on Opus:

{
  "name": "Bedrock Explicit",
  "provider": "bedrock",
  "options": {
    "region": "us-west-2",
    "accessKeyId": "AKIA...",
    "secretAccessKey": "...",
    "reasoning": { "effort": "high", "display": "summarized" }
  }
}

{
  "name": "Claude Opus (Bedrock, thinking)",
  "provider": "Bedrock Explicit",
  "options": {
    "model": "anthropic.claude-opus-4-5-20250929-v1:0"
  }
}