---
title: "How we built an MCP bridge to give our AgentCore-hosted AI agent access to local MCP tools"
slug: "so-verbindet-eine-mcp-bridge-cloud-agents-mit-deinen-lokalen-mcp-tools"
date: 2026-08-05
category: tech-pub
tags: [agents, amazon]
language: en
sources_count: 1
featured: false
publisher: AInauten News
url: https://news.ainauten.com/en/story/so-verbindet-eine-mcp-bridge-cloud-agents-mit-deinen-lokalen-mcp-tools
---

# How we built an MCP bridge to give our AgentCore-hosted AI agent access to local MCP tools

**Published**: 2026-08-05 | **Category**: tech-pub | **Sources**: 1

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## TL;DR

AI agents on Amazon Bedrock AgentCore run in the cloud, but users' tools and files live on their laptops.

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## Summary

AI agents on Amazon Bedrock AgentCore run in the cloud, but users' tools and files live on their laptops. Learn how to build a secure MCP bridge that lets a cloud-hosted agent call local MCP servers by tunneling signed messages over the existing WebSocket connection through a browser extension and Chrome native messaging, with no open ports or VPN required.

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## Why it matters

AI agents on Amazon Bedrock AgentCore run in the cloud, but users' tools and files live on their laptops.

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## Key Points

- AI agents on Amazon Bedrock AgentCore run in the cloud, but users' tools and files live on their laptops.

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## Nauti's Take

The opportunity is concrete: a cloud-hosted agent gains access to local tools and files without anyone opening ports or setting up a VPN. The risk sits in the chain of browser extension plus Chrome native messaging, which adds attack surface and ties access to a running browser session. Teams already on the AWS stack with sensitive local data should run a tightly scoped test, while everyone else is better off waiting for vendor-neutral bridges.

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## FAQ

**Q:** What is How we built an MCP bridge to give our AgentCore-hosted AI agent access to local MCP tools about?

**A:** AI agents on Amazon Bedrock AgentCore run in the cloud, but users' tools and files live on their laptops.

**Q:** Why does it matter?

**A:** AI agents on Amazon Bedrock AgentCore run in the cloud, but users' tools and files live on their laptops.

**Q:** What are the key takeaways?

**A:** AI agents on Amazon Bedrock AgentCore run in the cloud, but users' tools and files live on their laptops.

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## Related Topics

- [agents](https://news.ainauten.com/en/tag/agents)
- [amazon](https://news.ainauten.com/en/tag/amazon)

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## Sources

- [How we built an MCP bridge to give our AgentCore-hosted AI agent access to local MCP tools](https://aws.amazon.com/blogs/machine-learning/how-we-built-an-mcp-bridge-to-give-our-agentcore-hosted-ai-agent-access-to-local-mcp-tools/) - AWS Machine Learning Blog

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## About This Article

This article is a synthesis of 1 sources, curated and summarized by AInauten News. We aggregate AI news from trusted sources and provide bilingual (German/English) coverage.

**Publisher**: [AInauten](https://www.ainauten.com) | **Site**: [news.ainauten.com](https://news.ainauten.com)

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*Last Updated: 2026-08-06*