Mcp

Overview

Mcp is a Model Context Protocol server that verifies agent actions against your system of record and provides signed completion receipts. By implementing MCP, it lets AI assistants call verification tools directly without manual data transfer between applications.

The server runs locally via the npm package @postcept/mcp, which communicates over stdio on your machine. Installation uses npx -y @postcept/mcp and requires the POSTCEPT_API_KEY environment variable for authentication. Version v0.3.3 is available under the MIT license, with source code at Postcept/mcp on GitHub.

Mcp belongs in the AI & Agents category on mcp.site and works with all major MCP clients including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, and Zed. If you maintain this server for Postcept, claim this listing to verify ownership and keep information up to date.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@postcept/mcp"
      ],
      "env": {
        "POSTCEPT_API_KEY": "<postcept-api-key>"
      }
    }
  }
}

Requires POSTCEPT_API_KEY