Koskamo

Postey MCP

An official MCP server by Postey that enables AI agents to draft, schedule, and publish social media content across nine platforms including X, LinkedIn, Instagram, TikTok, YouTube, Threads, Bluesky, Facebook, and Pinterest. It supports authentication via API keys or OAuth and integrates with various AI clients like Claude Code and Cursor.

Endpoint and access

OAuth sign-in: the first time you connect, your client opens the vendor's own authorization prompt in a browser.

Postey MCP logo, by PosteyVendor evidenceStreamable HTTPOAuth sign-inEndpoint checked 2026-11-01Operated by Postey
You need:Visit https://app.postey.ai?settings=agents&section=advanced (AI & Agents -> Advanced) to generate an API key (starts with mk_). Available on every plan, including Free.Auth: X-API-Key: header (preferred — no browser required) or OAuth 2.1 Authorization Code + PKCE (interactive)
MCP endpoint (Streamable HTTP)
https://mcp.postey.ai/mcp
Vendor documentation

What you can do with it

  • Draft a product launch announcement for LinkedIn with an image.
  • Turn a draft into an X thread with a LinkedIn version.
  • Schedule a draft for a specific future time.
  • Upload a video and create a Reel draft for Instagram.

Source and maintenance

Vendor evidenceRegistry 3.0.0
mcp-registry: ai.postey/postey@3.0.0Project website

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
309 ms
95th percentile latency
309 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 309 ms · metadata changed · refuses unauthenticated initialize (HTTP 401)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http postey-mcp https://mcp.postey.ai/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add postey-mcp --url https://mcp.postey.ai/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable postey-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "postey-mcp": {
      "url": "https://mcp.postey.ai/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "postey-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.postey.ai/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start postey-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "postey-mcp": {
      "type": "http",
      "url": "https://mcp.postey.ai/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http postey-mcp https://mcp.postey.ai/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "postey-mcp": {
      "url": "https://mcp.postey.ai/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "postey-mcp": {
      "serverUrl": "https://mcp.postey.ai/mcp"
    }
  }
}

Let your agent find its tools

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Do you run Postey MCP?

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