Output Firewall MCP Server
by tangfei7777-cellio.github.tangfei7777-cell/mcp-output-firewallv0.3.0
Three-layer firewall for MCP: content, egress and action policy. Proxy or server.
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security
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freshness
Active24d ago
Install Output Firewall MCP server
Install in Claude Code
claude mcp add output-firewall -- npx -y mcp-output-firewallInstall in Cursor
{
"mcpServers": {
"output-firewall": {
"command": "npx",
"args": [
"-y",
"mcp-output-firewall"
]
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"output-firewall": {
"command": "npx",
"args": [
"-y",
"mcp-output-firewall"
]
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"output-firewall": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"mcp-output-firewall"
]
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"output-firewall": {
"command": "npx",
"args": [
"-y",
"mcp-output-firewall"
]
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Freshness
Active — last maintenance signal 24d ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-09-16 · 24d ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-09-15 · 24d ago · official registry · v0.3.0
FAQ
›How do I install the Output Firewall MCP server in Claude Code?
Run: claude mcp add output-firewall -- npx -y mcp-output-firewall. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Output Firewall require an API key?
No required environment variables are declared in its published metadata.
›Can I use Output Firewall as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is Output Firewall in the official MCP registry?
Yes, as io.github.tangfei7777-cell/mcp-output-firewall.