Blackwall MCP Server

by bluetieroperations-createcom.blackwalltier/blackwallv1.4.2

Risk gate that agents call before irreversible actions, returning a risk score, reversibility class, red flags and a proceed/confirm/human-required decision.

0Node.jsstdioofficial registry

context tax

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security

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cold start

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freshness

Active25d ago

Install Blackwall MCP server

claude mcp add blackwall -e BLACKWALL_API_KEY='<blackwall-api-key>' -- npx -y blackwall-mcp

{
  "mcpServers": {
    "blackwall": {
      "command": "npx",
      "args": [
        "-y",
        "blackwall-mcp"
      ],
      "env": {
        "BLACKWALL_API_KEY": "<blackwall-api-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "blackwall": {
      "command": "npx",
      "args": [
        "-y",
        "blackwall-mcp"
      ],
      "env": {
        "BLACKWALL_API_KEY": "<blackwall-api-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "blackwall": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "blackwall-mcp"
      ],
      "env": {
        "BLACKWALL_API_KEY": "<blackwall-api-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "blackwall": {
      "command": "npx",
      "args": [
        "-y",
        "blackwall-mcp"
      ],
      "env": {
        "BLACKWALL_API_KEY": "<blackwall-api-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
BLACKWALL_API_KEY	yes	yes	Your BLACK_WALL API key (bw_live_…) from https://blackwalltier.com/dashboard/keys
BLACKWALL_MODE	—	—	observe (log only, never block) or enforce (default).

Freshness

Active — last maintenance signal 25d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-09-15 · 25d ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-08-25 · 45d ago · official registry · v1.4.2

FAQ

›How do I install the Blackwall MCP server in Claude Code?

Run: claude mcp add blackwall -e BLACKWALL_API_KEY='<blackwall-api-key>' -- npx -y blackwall-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Blackwall require an API key?

Yes. It expects BLACKWALL_API_KEY, of which 1 is a secret.

›Can I use Blackwall as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Blackwall in the official MCP registry?

Yes, as com.blackwalltier/blackwall.