Blackwall

Verified Integration

Author: @flagging•Category: ServerApplication

GitHub Repository

JSON-RPC 2.0

Protocol Standard

Sub-second

Execution Latency

Active

Operational Status

Client Configuration

— Connect Blackwall to Claude Desktop or Cursor in seconds

{
  "mcpServers": {
    "blackwall": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-blackwall"
      ],
      "env": {}
    }
  }
}

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows).

Architecture & Capabilities

System Overview

Performs pre-action risk checks for AI agents to prevent irreversible and unintended actions.

Indexed Date

7/22/2026

License

Open Source

Protocol Layer

stdio / SSE RPC

Frequently Asked Questions

Architecture and operational details for Blackwall

Blackwall is an MCP server that acts as a guardrail for AI agents. It performs pre-action risk checks (using the `forecast` tool) before any irreversible action, providing GO/CAUTION/STOP recommendations, risk scores, and named red flags to prevent unintended or harmful outcomes.

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