MCPGod: Fine-grained control over MCP clients, servers, and tools
Hey everyone, I've wanted an easy way to control which mcp server tools are available to clients. So for example, I might want a gmail server to only expose the read tool (but not send, delete etc). I figured if I create a cli for spawning mcp servers, I could intercept the stdin, stdout, stderr etc and modify what the clients see when they are making calls to list tools, resources, and prompts. Well it worked! In the initial version you can easily add a server to claude with a safe list of tools: npx -y mcpgod add @modelcontextprotocol/server-everything --client claude --tools=echo,add…
MCPGod: Fine-grained control over MCP clients, servers, and tools launched on March 11, 2025 with 37 votes, #610 of 7,215 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 1 year on.
In plain words
MCPGod is a command-line tool that lets developers selectively expose Model Context Protocol server tools to clients. It intercepts server communications to filter which tools, resources, and prompts clients can discover and access. For example, users can configure a Gmail server to only show read capabilities while hiding send or delete functions. The tool works with Claude Desktop and logs all client activity, making it useful for developers who want fine-grained security control over AI agent capabilities.
written from the facts on this page · September 2026
From the sources
Fine-grained control over model context protocol (MCP) clients, servers, and tools. Context is God. - mcpgod/cli
In the maker’s words, at launch
Hey everyone, I've wanted an easy way to control which mcp server tools are available to clients. So for example, I might want a gmail server to only expose the read tool (but not send, delete etc). I figured if I create a cli for spawning mcp servers, I could intercept the stdin, stdout, stderr etc and modify what…
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