PostOnce

io.github.postoncehqv0.2.0Updated Oct 1, 2026

Create drafts, schedule posts, and publish to your connected social accounts through PostOnce.

VerifiedStreamable HTTPWeb executableCommunication & Collaboration

Overview

AI-generated overview

Lets an assistant create drafts, schedule posts, and publish to social accounts connected through PostOnce.

What it does
PostOnce is a remote MCP server that connects an assistant to a social publishing service. Based on its description, it lets the assistant create draft posts, schedule posts for later, and publish content to social accounts the user has already connected to PostOnce. No individual tool names or parameters are listed in the available information.
When to use it
Worth considering when you want an assistant to help prepare, queue, or send social media posts through an existing PostOnce account rather than working inside each platform separately. It is aimed at publishing workflows, not at reading analytics or managing unrelated data.
Requirements
A remote MCP client that supports streamable HTTP, connecting to the PostOnce endpoint. A PostOnce account with social accounts already connected is implied by the description. The manifest declares no authentication method, environment variables, or headers, so check the provider's own setup instructions for how access is granted.
Before you install
The server can publish and schedule content on connected social accounts, so assistant actions may become visible publicly or go out on a schedule. The manifest declares no authentication details, so confirm how the connection is authorized and who can reach the endpoint before enabling it. Review drafts before anything is sent.

Installation

In SourceWeft

  1. Open PostOnce in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "postonce": {
      "type": "http",
      "url": "https://postonce.to/mcp"
    }
  }
}

Tools

0
Tool metadata has not been indexed yet.

Version history

1
  1. v0.2.0LatestOct 1, 2026