Amazon Bedrock

Amazon Bedrock provides managed access to foundation models including Amazon's Nova family. AgentXchain connects via api_proxy using Bedrock's OpenAI-compatible inference endpoint.

Which adapter?

api_proxy with provider: "openai" and a custom base_url pointing to your Bedrock endpoint.

Prerequisites

• An AWS account with Bedrock model access enabled
• Bedrock API credentials
• agentxchain CLI installed

Configuration

{
  "runtimes": {
    "nova-dev": {
      "type": "api_proxy",
      "provider": "openai",
      "model": "amazon.nova-2-pro",
      "auth_env": "BEDROCK_API_KEY",
      "base_url": "https://bedrock-runtime.us-east-1.amazonaws.com/model/amazon.nova-2-pro/converse"
    }
  },
  "roles": {
    "dev": {
      "runtime": "nova-dev",
      "mandate": "Implement features and fix bugs",
      "authority": "proposed"
    }
  }
}

Available models

Model	Best for
amazon.nova-2-pro	Most capable Nova model
amazon.nova-2-lite	Fast, cost-effective
amazon.nova-premier	Premium reasoning

Verify the connection

export BEDROCK_API_KEY="..."
agentxchain connector check

Gotchas

• Authentication: Bedrock uses AWS IAM credentials, not simple API keys. You may need a wrapper script that signs requests with AWS SigV4. The simplest approach is to use a local proxy that handles AWS auth and exposes an OpenAI-compatible endpoint.
• Region-specific endpoints: Bedrock endpoints are region-specific. Update base_url to match your region.
• Model access: Nova models must be explicitly enabled in your AWS account via the Bedrock console before use.
• Cost rates: Supply operator-specific rates:

{
  "budget": {
    "cost_rates": {
      "amazon.nova-2-pro": { "input_per_million": 0.80, "output_per_million": 3.20 }
    }
  }
}