Postsiva MCP in Cursor

Use Postsiva MCP inside Cursor to manage social accounts from your editor: check connections, draft posts, publish, read analytics, and reply to comments — all via natural language. Cursor uses the CLI MCP endpoint (https://mcp.postsiva.com/mcp) with an API key as the X-API-Key header (not a query param) and curl-based media upload.

Prerequisites

Pro plan with mcp_enabled
Workspace API key (psk_live_…) from Settings → API Keys
At least one social account connected in that workspace
Cursor with MCP support (Settings → MCP)

Install

Open MCP settings

Cursor → Settings → MCP → Add server

Configure HTTP transport

Type: HTTP (Streamable HTTP)
URL: https://mcp.postsiva.com/mcp
Header: X-API-Key = your psk_live_… key

Restart Cursor

Reload MCP or restart Cursor so the server connects.

`mcp.json` (project or global)

Add to .cursor/mcp.json in your project, or ~/.cursor/mcp.json globally:

{
  "mcpServers": {
    "Postsiva": {
      "url": "https://mcp.postsiva.com/mcp",
      "headers": {
        "X-API-Key": "psk_live_YOUR_KEY"
      }
    }
  }
}

Do not commit real API keys. Use environment-specific config or Cursor’s secret storage for production keys.

Alternative auth via query string (less recommended):

https://mcp.postsiva.com/mcp?apikey=psk_live_YOUR_KEY

Verify connection

In Cursor Agent chat, try:

What social accounts are connected to my Postsiva workspace?

The agent should call get_accounts and list linked platforms. If you see “API key required” or “Invalid or expired API key”, check the header and Pro plan status.

Example prompts

Accounts and OAuth

List all connected social platforms and their profile names.

Generate an OAuth link to connect TikTok to my workspace.

Content pipeline

Turn this idea into LinkedIn and Threads post copy: "Why we open-sourced our design system"

Generate Instagram and LinkedIn images from this caption: "Launch day is here 🚀"

Analyze this image URL and suggest a caption for Instagram: https://cdn.example.com/hero.jpg

Publishing

Post this text to LinkedIn and Bluesky: "We just shipped unified analytics — check it out."

Save a draft Instagram post with this caption and image URL: [caption] / [url]

Schedule this for tomorrow 14:00 UTC on LinkedIn: [text]

Read and engage

Show my last 10 LinkedIn posts with engagement stats.

Get comments on my most recent Instagram post and draft replies to unanswered ones.

Pull unified analytics for this workspace — totals and per-platform breakdown.

Queue management

List all scheduled posts for the next 7 days.

Show saved drafts across all platforms.

Common workflows

Draft → review → publish

Ask for idea_to_content — review copy in chat
Ask for content_to_image — confirm image URLs
Ask to publish with draft: true first, then live when ready

Weekly analytics review

get_unified_analytics
get_user_posts with refresh_stats=true for linkedin, limit=5
Summarize top performer and suggest next week's content themes

Comment triage

1. get_comments with platforms=["instagram","linkedin"]
2. For each unanswered comment, reply_to_comment with a helpful response

Tool reference

Cursor exposes all 13 MCP tools. See the Tool catalog for arguments and REST equivalents.

Category	Tools
Accounts	`get_accounts`, `manage_platform_connection`
Posts	`publish`, `get_user_posts`, `get_queued_posts`
Inbox	`get_comments`, `reply_to_comment`
Analytics	`get_unified_analytics`
AI	`idea_to_content`, `content_to_image`, `media_to_content`, `analyze_media`
Utility	`web_search_duckduckgo`

clear_workspace_chat_history is not on MCP — use DELETE /user-agent-chats or ask the WhatsApp/website agent to clear history.

Tips

Scoped keys: Use linkedin_only or comma-separated platform scopes for safer automation — see IDs and scopes.
LinkedIn refresh: get_user_posts with refresh_posts=true on personal LinkedIn is expensive (Apify) and caps at 2 posts — prefer cached data unless syncing live.
Character limits: Generated copy may exceed platform limits — ask Cursor to trim before publish.
Parallel platforms: idea_to_content and content_to_image run per platform in parallel; one failed platform does not block others.

Troubleshooting

Symptom	Fix
MCP server red / disconnected	Verify URL, restart Cursor, check key prefix `psk_live_`
Plan upgrade message	Upgrade to Pro; confirm `mcp_enabled`
Empty tool list	Re-add server; ensure Streamable HTTP (not stdio)
403 on OAuth connect	API key scope may restrict platforms — use `full` scope

Connect to MCP

Transport and auth details

n8n integration

Automation workflows

Tool catalog

All 13 tools

Get started

Features

REST API

MCP

Platforms

Guides

Integrations

Errors

Reference

Postsiva MCP in Cursor

Prerequisites

Install

`mcp.json` (project or global)

Verify connection

Example prompts

Accounts and OAuth

Content pipeline

Publishing

Read and engage

Queue management

Common workflows

Draft → review → publish

Weekly analytics review

Comment triage

Tool reference

Tips

Troubleshooting

Next

Connect to MCP

n8n integration

Tool catalog

​Prerequisites

​Install

​mcp.json (project or global)

​Verify connection

​Example prompts

​Accounts and OAuth

​Content pipeline

​Publishing

​Read and engage

​Queue management

​Common workflows

​Draft → review → publish

​Weekly analytics review

​Comment triage

​Tool reference

​Tips

​Troubleshooting

​Next

Connect to MCP

n8n integration

Tool catalog

Prerequisites

Install

`mcp.json` (project or global)

Verify connection

Example prompts

Accounts and OAuth

Content pipeline

Publishing

Read and engage

Queue management

Common workflows

Draft → review → publish

Weekly analytics review

Comment triage

Tool reference

Tips

Troubleshooting

Next