Upload-Post MCPサーバー

Upload-Post for Claude, Cursor, Gemini CLI, Grok Bot and Grok Build

Schedule, repurpose, and grow on social media — directly from Claude (Claude.ai, Cowork and Claude Code).

The Upload-Post plugin connects Claude to the hosted Upload-Post MCP server (50 tools) and ships opinionated skills and agents on top. Schedule cross-platform campaigns, turn long videos into viral shorts, work the comment section, build Instagram comment-to-DM funnels, and analyse account performance — without leaving the chat.

No API key to copy. The server speaks OAuth 2.1, so installing and authenticating takes two commands and a browser click.

Free plan, no credit card required. Try it before you decide.

Try it

After installing, ask Claude things like:

• "Connect my Instagram and TikTok to Upload-Post."
• "Post this video to TikTok, Instagram Reels and YouTube Shorts tomorrow at 6 pm."
• "Schedule this announcement on LinkedIn and X for Monday at 9:00."
• "Cut this podcast episode into five shorts and schedule one a day."
• "Reply to the new comments on my last Instagram post."
• "When someone comments GUIDE on this reel, DM them the download link."
• "Which of my posts did best this month, and what should I post next?"

More in EXAMPLES.md.

What's inside

Skills (slash commands)

Skill	What it does
/upload-post:setup	One-time onboarding. Walks the OAuth connection, verifies the MCP link, and checks you have at least one social account connected.
/upload-post:whitelabel-connect	Generate a JWT connection link so a client or end-user can OAuth their socials into a profile inside your workspace — for white-label embeds and agency onboarding. (Connecting your own accounts? Use app.upload-post.com/manage-users — a couple of clicks per network.)
/upload-post:schedule-campaign	Schedule a post across multiple platforms at once. Handles per-platform validation (aspect ratio, length, Facebook pages, Pinterest boards).
/upload-post:repurpose-video	Take a long video, transcribe it, pick viral moments, cut clips with FFmpeg, optionally add hook overlays, then schedule to TikTok / Reels / Shorts.
/upload-post:posting-queue	Set up a recurring weekly posting rhythm (slots, days, timezone) and see what lands in the next slot.
/upload-post:manage-comments	Read, triage, reply to and moderate comments on Instagram / Facebook / YouTube / LinkedIn / TikTok / X / Threads / Bluesky, plus Google Business reviews.
/upload-post:autodm-setup	Build an Instagram comment-to-DM funnel: keyword trigger → private DM with up to 3 link buttons.
/upload-post:analyze-performance	Pull analytics across accounts, identify what is working, and propose concrete next moves.

Agents

• content-strategist — reads your analytics and proposes 3–5 specific next posts.
• autodm-architect — designs full comment-to-DM funnels (trigger + DM body + link buttons + CTA).
• post-debugger — diagnoses failed uploads, expired tokens, and quota errors.

MCP server

The plugin wires the hosted Upload-Post MCP server (https://mcp.upload-post.com/mcp) into Claude. 50 tools cover uploads (video / photo / text / documents), scheduling and the posting queue, analytics, comments and Google Business reviews, DMs and AutoDMs, FFmpeg encoding jobs, media staging, and account management. See the MCP integration guide for the full tool list.

Authentication is OAuth 2.1 with dynamic client registration (RFC 7591) and PKCE — Claude registers itself, opens the approval page, and stores the token. Nothing to paste. Revoke any time from Connected Apps in the dashboard.

Why this plugin (vs. alternatives)

• Free plan, no credit card. Get an API key and try the whole thing before paying. Most social-automation tools gate everything behind a card.
• AutoShorts pipeline. Long-form → viral clips → scheduled across short-form platforms, in one skill. Not a feature most schedulers ship.
• Instagram comment-to-DM funnels. First-class support for AutoDMs and lead capture from comments.
• 50 MCP tools, not a CLI wrapper. Claude calls real tools with structured inputs; no copy-pasting curl commands.

Install

From this repo's marketplace (Claude Code)

/plugin marketplace add Upload-Post/upload-post-plugin
/plugin install upload-post@upload-post

From the community marketplace

/plugin marketplace add anthropics/claude-plugins-community
/plugin install upload-post@claude-community

Gemini CLI

gemini extensions install https://github.com/Upload-Post/upload-post-plugin

The extension (gemini-extension.json) registers the hosted MCP server and loads GEMINI.md as context. On first use Gemini CLI opens the OAuth sign-in; run /mcp auth upload-post to re-authenticate.

Grok Bot, Cursor and Grok Build

The same repo ships .cursor-plugin/plugin.json + mcp.json (Cursor Marketplace, which also feeds Grok Bot's plugin catalog) and .grok-plugin/plugin.json + .mcp.json (Grok Build plugin marketplace).

• Grok Bot: Plugins in the sidebar → search Upload-Post → Add, then approve the Upload-Post sign-in.
• Cursor: Marketplace → search Upload-Post → Add.
• Grok Build: install upload-post from the xAI plugin marketplace.

Until a listing is live, add the MCP server manually with the URL https://mcp.upload-post.com/mcp.

Network and credentials: the only endpoint is https://mcp.upload-post.com (OAuth 2.1 + PKCE; API keys via Authorization: ApiKey <key> are also accepted). The plugin contains no scripts, hooks or binaries.

Locally (development)

git clone https://github.com/Upload-Post/upload-post-plugin
claude --plugin-dir ./upload-post-plugin

Configure

1. Connect Upload-Post. A browser tab opens; log in or create a free account (no card) and approve.

   • Claude.ai, desktop app or Cowork: Customize → Connectors → Upload-Post → Connect.
   • Claude Code: run /mcp, pick upload-post, choose Authenticate.

2. Ask Claude to set up Upload-Post (or run /upload-post:setup in Claude Code). It verifies the connection, gives you a one-click link to connect your social accounts and helps you publish your first post.

That's it — there is no API key to copy and no environment variable to export.

Grab a key at app.upload-post.com/settings/api and either send it as a header against the same hosted endpoint:

{
  "mcpServers": {
    "upload-post": {
      "type": "http",
      "url": "https://mcp.upload-post.com/mcp",
      "headers": { "Authorization": "ApiKey upk_live_..." }
    }
  }
}

…or run the server locally over stdio:

{
  "mcpServers": {
    "upload-post": {
      "command": "npx",
      "args": ["-y", "@upload-post/mcp"],
      "env": { "UPLOAD_POST_API_KEY": "upk_live_..." }
    }
  }
}

First-run flow

/upload-post:setup
# Connect your own accounts at app.upload-post.com/manage-users (web, no JWT needed)
/upload-post:schedule-campaign         # post something
/upload-post:posting-queue             # set a weekly rhythm so you stop picking dates
/upload-post:analyze-performance       # see what worked after a few days
/upload-post:repurpose-video           # turn a long video into shorts
/upload-post:manage-comments           # reply to what came back
/upload-post:autodm-setup              # capture leads from a hot post

Troubleshooting

Symptom	Likely cause	Fix
No upload-post tools available	Not authenticated yet	Claude.ai / Cowork: Customize → Connectors → Upload-Post → Connect. Claude Code: /mcp → upload-post → Authenticate
Every tool returns 401	OAuth token revoked or expired	Reconnect as above. Check Connected Apps in the dashboard
OAuth browser tab never opens	Proxy or VPN blocking the host	curl -sI https://mcp.upload-post.com/.well-known/oauth-protected-resource should return 200
list_users returns empty	No social accounts linked yet	Ask Claude for a connection link, or connect them at app.upload-post.com/manage-users
Upload fails with quota_exceeded	Free-plan daily limit hit	Wait until quota resets or upgrade
Scheduled post never went out	Token for that account expired	The post-debugger agent will diagnose; usually reconnect from manage-users

Documentation

• Quick start — install, authenticate, publish, in about two minutes.
• Features — platform support matrix by content type, all 50 tools by family, and the known limitations.
• Examples — real prompts and what the plugin does with them.
• Changelog — what changed between versions.

Links

• Upload-Post: upload-post.com
• API & MCP docs: docs.upload-post.com/guides/mcp-server-integration
• MCP server source: github.com/Upload-Post/upload-post-mcp (MIT)
• Support: info@upload-post.com

License

MIT. See LICENSE.