MCP server

HappyDTech Poster is a remote Model Context Protocol server. AI assistants use it to schedule and publish social media posts to LinkedIn, TikTok, Instagram and Facebook for you, read analytics and answer comments.

Server URL	`https://poster.happydtech.com/mcp`
Transport	Streamable HTTP (POST, JSON responses). Protocol versions 2025-06-18, 2025-03-26, 2024-11-05.
Sign-in	OAuth 2.1 with PKCE and dynamic client registration (discovered from the 401 response), or an API key as `Authorization: Bearer hdp_…`
Access	Full (acts with your role in the workspace) or read-only. Approval rules of the workspace always apply.

Connect your AI app

Claude (claude.ai, desktop, mobile)

Settings → Connectors → Add custom connector.
Name: HappyDTech Poster. URL: https://poster.happydtech.com/mcp.
Connect, sign in, choose the workspace and access level, press Allow.

ChatGPT

Settings → Apps & Connectors → Advanced settings → turn on Developer mode (plans that offer it).
Create a connector with the server URL and OAuth authentication.
Sign in and press Allow.

Claude Code

claude mcp add --transport http happydtech-poster https://poster.happydtech.com/mcp

Then run /mcp and choose Authenticate.

Cursor, VS Code and other apps (API key)

Create a key in the app under AI assistants, then add to your MCP settings:

{
  "mcpServers": {
    "happydtech-poster": {
      "url": "https://poster.happydtech.com/mcp",
      "headers": { "Authorization": "Bearer YOUR_API_KEY" }
    }
  }
}

Tools

Tool	What it does	Changes data
`get_workspace`	Workspace, your role, connected accounts (account_id), platform status, caption limits. Call first.	No
`list_posts`	Upcoming, recent, failed or waiting-for-approval posts with per-platform status and links.	No
`get_post`	One post in full.	No
`create_post`	Publish now (10-second undo window) or at `schedule_at`, with per-platform captions, first comment and media.	Yes, public
`update_post`	Edit the text of a post that has not gone out.	Yes
`reschedule_post`	Move a post to another time.	Yes
`cancel_post`	Stop a post where it has not gone out.	Yes
`list_drafts` / `save_draft`	Ideas board: read, or save an idea or draft without publishing.	save: Yes
`list_media`	Uploaded videos and images to attach (uploads happen in the web app).	No
`get_analytics`	Views, likes, comments, shares per post and per platform; tracked-link clicks.	No
`list_comments` / `reply_to_comment`	Comment inbox (Instagram, Facebook Pages) and public replies.	reply: Yes, public
`create_tracked_links`	Short links with UTM tags and click counts.	Yes
`get_posting_times`	Research-based best days and hours per platform, with sources.	No
`list_templates`	Saved caption templates, hashtag sets and reply snippets.	No

Times are ISO 8601 with a time zone, for example 2026-11-02T09:00:00+07:00.

Things to ask

“What is scheduled for next week? Move Thursday’s post to Friday 10:00.”
“Write three LinkedIn posts about our new service and schedule them Monday, Wednesday and Friday at the best times.”
“Which posts did best this month, and why?”
“Reply politely to the open comments asking about price.”

Safety

The AI never receives your passwords or the platforms’ access tokens; it works through HappyDTech Poster only.
Each connection belongs to one member and one workspace and is full or read-only. Remove it any time in AI assistants; it stops at once.
Every change an AI makes, including refused attempts, is listed for the workspace’s owners and admins.
Limits: 600 MCP calls per connection per hour, plus the app’s normal posting limits.