This JavaScript utility, crosspost, enables users to simultaneously post content to multiple social media platforms. It is designed for developers and content creators looking to streamline their cross-platform posting workflow, offering both an API and a CLI for integration into various applications and CI/CD pipelines.

How It Works

The library employs a strategy-based design, with individual classes handling the specific API interactions for each supported platform (Bluesky, Mastodon, Twitter, LinkedIn, Discord, Telegram, Dev.to). Users instantiate these strategy classes with platform-specific credentials and then pass them to a central Client class, which orchestrates the posting process across all configured services. This modular approach allows for easy extension with new platform support.

Quick Start & Requirements

• Installation: npm install @humanwhocodes/crosspost
• Prerequisites: Node.js. Platform-specific API keys, tokens, and credentials are required for each service.
• Usage: API and CLI examples are provided in the README. Environment variables are used for credential management, with support for .env files via CROSSPOST_DOTENV.
• Links: API Usage, CLI Usage, MCP Server Usage

Highlighted Details

• Supports posting text and images (PNG, JPEG, GIF) to multiple platforms simultaneously.
• Includes a command-line interface (CLI) for easy integration into CI systems.
• Features an MCP (Model Context Protocol) server mode, allowing integration with AI agents like Claude Desktop.
• Provides detailed setup instructions for obtaining API credentials for each supported social network.

Maintenance & Community

The project is maintained by Nicholas C. Zakas. Further community or maintenance details are not explicitly provided in the README.

Licensing & Compatibility

• License: Apache License 2.0.
• Compatibility: Permissive license allows for commercial use and integration into closed-source projects.

Limitations & Caveats

The README notes that LinkedIn access tokens expire after two months, requiring periodic re-authentication. Additionally, Discord bots by default can only send messages to public channels unless granted specific permissions.