Model Context Protocol

Let your AI agent post for you

Connect Posted Once to Claude, Cursor, or any MCP-compatible agent. Then just ask: "schedule this to my channels for tomorrow at 9am" and it's done.

Get your API key

Posted Once offers both an MCP server and a plain REST API, on the same Pro API keys. Read the developer docs.

What your agent can do

list_channels

See which social accounts are connected.

create_post

Publish or schedule a post to one or more channels, including different times per platform.

list_posts

View recent posts and their per-channel status.

get_post

Get the full status of a single post, with live links.

Connect in 2 minutes

Create an API key

Add the server to your agent

Claude Code

terminal

claude mcp add --transport http postedonce \
  https://postedonce.com/api/mcp \
  --header "Authorization: Bearer pok_live_YOUR_KEY"

Cursor, Claude Desktop, VS Code & others

Add this to your MCP config file (e.g. ~/.cursor/mcp.json or your client's mcp.json):

mcp.json

{
  "mcpServers": {
    "postedonce": {
      "url": "https://postedonce.com/api/mcp",
      "headers": {
        "Authorization": "Bearer pok_live_YOUR_KEY"
      }
    }
  }
}

Server URL: https://postedonce.com/api/mcp · Transport: HTTP · Auth: Bearer token (your API key)

Just ask

"Post 'Big news coming Friday 👀' to all my channels."

"Schedule this thread to X tomorrow at 9am and to LinkedIn at noon."

"What's the status of my last 5 posts?"

Built to be safe to hand an agent

Scoped to one account. Every request is locked to the user who owns the API key. An agent can never see or touch another account's data.
No access to billing or your account. There's deliberately no tool for billing, plan changes, deleting your account, or managing keys. Those stay with you, in the browser.
Never exposes your tokens. Tools only return ids, usernames, and post status, never the access tokens for your connected accounts.
Rate limited. A per-key cap (60 posts/hour) on top of your plan limit stops a runaway agent from spamming or burning your quota.
Revoke anytime. Delete a key in Settings and the agent loses access instantly.

Hand your posting to an agent

Start free, connect your channels, and create an API key in Settings.

Start free trial