Tool Filter MCP

Official

by respawn-app

MCP proxy server that filters tools from upstream MCP servers via regex-based deny list

io.github.respawn-app/tool-filter-mcp (MCP proxy server)

The io.github.respawn-app/tool-filter-mcp server is an MCP proxy that filters tools exposed by upstream MCP servers. It uses a regex-based deny list to determine which tools should be excluded from what downstream clients can access.

🛠️ Key Features

MCP proxy behavior for upstream MCP servers
Tool filtering based on a regex-based deny list

🚀 Use Cases

Restricting available tools from upstream MCP servers for downstream consumers
Removing selected tools from an MCP toolset using pattern matching

⚡ Developer Benefits

Centralized control over tool exposure via a deny list
Regex-driven filtering for consistent, rule-based tool selection

⚠️ Limitations

Only described as filtering tools using a regex deny list; no other behaviors or configuration details are provided in the available source data

Install

Add to VS Code Add to Cursor

claude_desktop_config.json

json

{
  "mcpServers": {
    "tool-filter-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@respawn-app/tool-filter-mcp@0.4.2"
      ]
    }
  }
}