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MCP Proxy for AWS

Runs locallyApache-2.0Updated on Nov 6, 2026370GitHub starsNeeds an API key

A small local bridge from AWS that lets ordinary MCP clients talk to MCP servers hosted on AWS which expect IAM (SigV4) request signing instead of OAuth.

InstallRepository Checked on Nov 12, 2026

What it does

A small local bridge from AWS that lets ordinary MCP clients talk to MCP servers hosted on AWS which expect IAM (SigV4) request signing instead of OAuth. It runs over stdio, signs each request with credentials from the AWS CLI, environment variables or an IAM role, and forwards it to the remote endpoint, for example the AWS MCP Server or a server on Amazon Bedrock AgentCore. This package is the CLI build with its whole dependency tree pinned to tested versions; a separate library package serves agent frameworks. Options include a read-only switch, several AWS profiles per session, extra headers and timeouts. Docker images are also published.

Capabilities

  • Sign MCP requests to AWS-hosted servers with SigV4
  • Use local AWS CLI profiles, environment credentials or IAM roles
  • Switch between several AWS profiles per tool call
  • Hide tools that need write permissions with a read-only flag

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