Life & fun · November 21, 2025
GuardiAgent – Sandboxing / permission model for MCP servers
Anthropic's Model Context Protocol (MCP) has made it easy to spin up servers that expose tools and data to LLMs. A lot of these MCP servers run locally because they need access to your files, shell, browser, etc. The problem: they typically run with the same privileges as your user. If a server is buggy, misconfigured, or prompt-injected, it can do anything you can do: read SSH keys, exfiltrate dotfiles, poke around in private repos, etc. Our research group is working on this by adding a security manifest (inspired by the Android app manifest) plus a local policy enforcement engine that…
GuardiAgent – Sandboxing / permission model for MCP servers launched on November 21, 2025 with 9 votes, #1,143 of 9,796 launches that month and more than 75% of that year's launches.
What it does
Runtime security for AI agents and Model Context Protocol servers. Prevent data exfiltration, tool poisoning, and system attacks.
Use the GuardiAgent Framework to secure your AI Agent. Encapsulate the least common denominator in agentic software: the MCP server. To use the GuardiAgent Security Sandbox, use the following quick start steps. GuardiAgent is not dependent on a specific AI framework, it works with all SDKs. However, this quickstart shows how to use GuardiAgent with the OpenAI Agent SDK. Currently, we support the OpenAI Agent SDK out of the box with an SDK specific implementation. To setup a new project and use the openAI Agent SDK, you'll need to initialize the project and add its dependencies. uv init uv add openai-agents uv add https://github.com/GuardiAgent/python-mcp-sandbox-openai-sdk.git Walk-through…from guardiagent.com
In the maker’s words, at launch
Anthropic's Model Context Protocol (MCP) has made it easy to spin up servers that expose tools and data to LLMs. A lot of these MCP servers run locally because they need access to your files, shell, browser, etc. The problem: they typically run with the same privileges as your user. If a server is buggy…
Does a similar job
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Anthropic's MCP Server Directory2024 · glama.ai · ▲11I started this project because I believe MCP has the potential to transform how AI models interact with external resources, but the ecosystem is still very fragmented. There's no central place to discover and compare all the server implementations available, which makes adoption and experimentation harder for developers. I initially built the GitHub repo awesome-mcp-servers (https://github.com/punkpeye/awesome-mcp-servers/), and it's been amazing to see the community contribute to it. Now, I'm taking it further with a directory that automates many tasks—introspecting…
Representing Agents as MCP Servers2025 · github.com · ▲58Hey HN! A few months ago we shared mcp-agent (https://github.com/lastmile-ai/mcp-agent) [1][2], a lightweight framework that implements every agent pattern from Anthropic’s Building Effective Agents blog [3] and handles MCP server/client management seamlessly. Our core bet is that connecting LLMs to tools, resources, and external systems will soon be MCP-native by default. Today we're launching a significant update: Agents as MCP servers. Currently "agentic" behavior exists only on the MCP client side – clients like Claude or Cursor use MCP servers to solve tasks.…
ContextGuard2025 · github.com · ▲12I built ContextGuard after discovering that 43% of MCP servers have critical security vulnerabilities. MCP (Model Context Protocol) is the new standard that lets Claude Clients(Desktop, Windsurf, Cursor, etc.) access external tools and data sources - think of it as a plugin system for AI assistants. The problem: When you give those clients access to your filesystem, databases, or APIs through MCP servers, you're opening up serious attack vectors. Prompt injection, data leakage, and path traversal attacks are all possible. Most developers building MCP servers don't have security expertise,…
MCP Cloud2025 · mcp-cloud.ai · ▲52Deploy Model Context Protocol (MCP) servers with ease. Scale your AI models seamlessly with our cutting-edge platform.
Blueprint MCPNov 2025 · blueprint-mcp.railsblueprint.com · ▲9Hi HN, I wrote a book on the Model Context Protocol (MCP) – the open standard from Anthropic that lets AI agents connect to external tools and data sources. I'm an RPA/automation practitioner (CEO of Niuexa, LinkedIn Learning instructor) and I noticed there was no comprehensive resource covering MCP architecture, security patterns, and enterprise deployment strategy. So I wrote one. The book covers: - MCP architecture deep dive (servers, clients, hosts, transport layers) - 20-point security checklist for MCP deployments - EU AI Act compliance for agentic systems - Real-world breach…
MCP Server with HTTP support instead of stdio/sse2025 · twitter.com · ▲11Admittedly I work on this, but I anthropic's decision to finally embrace http, auth (at least a little), and other RFCs that are coming out is just great. With OpenAI behind it too, this ecosystem will be built around projects like this. Not saying it's MCP or not, but it'll be one of them
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