MiniStack 1.4.0 Lets Developers Run Amazon Bedrock Locally with Ollama

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MiniStack version 1.4.0 introduces four new services that emulate Amazon Bedrock locally, allowing developers to test AWS AI workloads without cloud access or API costs. The tool supports deterministic mock responses with accurate wire formats for multiple model families, including Anthropic, Titan, Llama, and Mistral, selected automatically by model ID. By setting a single environment variable pointing to any OpenAI-compatible endpoint such as Ollama or vLLM, MiniStack proxies real completions and translates them into Bedrock-shaped responses. The release also covers 66 verified Bedrock control-plane operations, 72 bedrock-agent operations, and 31 bedrock-agent-runtime operations, all scoped by account and region. MiniStack is open source under the MIT license and available as a Docker image at no cost.

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