Postbolt

Overview

Postbolt is a Model Context Protocol server that enables AI agents to publish content directly to 13+ social media platforms. Instead of manually copying and pasting between applications, AI assistants can call Postbolt as a native tool through the MCP interface, streamlining multi-platform publishing workflows.

The server runs locally on your machine via the npm package postbolt-mcp, which communicates over stdio. Installation is simple: run npx -y postbolt-mcp and provide your POSTBOLT_API_KEY through an environment variable. The latest release is v1.0.2, distributed under the MIT license with source code available at Whitemarmot/postbolt-mcp on GitHub.

Postbolt is listed 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 Postbolt, claim this listing to verify ownership and keep information up to date.

Installation

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

Requires POSTBOLT_API_KEY