Socialync

What it does

The Socialync MCP server lets AI assistants (Claude, ChatGPT, Cursor, or any MCP-compatible client) help creators draft, schedule, and publish image and text content across their connected social accounts. Users authorize each platform via the official OAuth flow once, then their AI assistant can prepare posts, schedule them at peak times, save drafts for review, and pull analytics, all through standard MCP tools.

Current scope: Image and text posts. Video uploads are handled through the Socialync web and mobile apps where the video flow lives.

Supported platforms

The MCP currently supports posting to platforms where image and text content is native:

• Instagram (Feed photo posts)
• Facebook (Feed posts)
• X (Twitter)
• LinkedIn
• Threads
• Bluesky

Video-first platforms (TikTok, YouTube) are supported through the Socialync web and mobile apps, which handle the video upload flow.

Use cases

• "Schedule my next tweet to also post on LinkedIn and Threads tomorrow at noon"
• "Draft three captions for this image, optimized for Instagram, X, and LinkedIn"
• "Show me which of my LinkedIn posts got the best engagement this week"
• "Cross-post this image to my connected accounts with platform-appropriate hashtags"
• "Save this as a draft so I can review it before publishing"

Installation

1. Sign up at socialync.io and upgrade to the Business plan ($40/month — required for MCP access)
2. Connect your social accounts through Socialync using the official OAuth flow for each platform (you authorize each one individually)
3. Generate your API key at https://www.socialync.io/settings?tab=api-keys
4. Add to your MCP client config:

{
  "mcpServers": {
    "socialync": {
      "url": "https://socialync-mcp-ntgtgrzanq-ue.a.run.app/mcp",
      "transport": "http",
      "headers": {
        "Authorization": "Apikey YOUR_SOCIALYNC_API_KEY"
      }
    }
  }
}

Why Socialync MCP

• Six platforms, one connection. Manage Instagram, Facebook, X, LinkedIn, Threads, and Bluesky from a single MCP server.
• User-authorized via official OAuth flows. Each platform connects through its own consent screen, respecting platform rate limits and policies.
• Platform-native captions. Suggest different copy per platform — LinkedIn professional, Instagram storytelling, X commentary.
• Drafts and human review. Posts can be saved as drafts for the creator to review before publishing — keeping a human in the loop.
• HTTP transport with API key auth. No local install or stdio needed.

Compliance

Socialync follows each platform's API terms of service and uses official OAuth flows for account access. Users retain full control of their accounts, can revoke access at any time, and all published content reflects the user's authorized activity. The Socialync product is reviewed against platform policies and updated as those policies change.

Learn more

• Marketing page
• Pricing
• MCP setup guide
• Privacy Policy · Terms of Service