PostRelay

io.post-relayPublished by post-relay.ioOfficial publisherv1.0.0Updated Nov 11, 2026

Let your AI post one approved creative to X, LinkedIn, Instagram, YouTube, TikTok and Facebook.

VerifiedStreamable HTTPWeb executableCommunication & Collaboration

Overview

AI-generated overview

Remote MCP server that lets an assistant publish one approved creative to X, LinkedIn, Instagram, YouTube, TikTok and Facebook.

What you can do
  • Publish an approved creative to social platforms
  • Post to X, LinkedIn, Instagram, YouTube, TikTok and Facebook
  • No tool list is published, so the exact operations are not documented in the supplied material.
When to use it
When you want an assistant to push a single reviewed creative out to several social channels instead of posting to each platform by hand.
Requirements
A remote endpoint at post-relay.io over streamable HTTP; OAuth authentication is required. No environment variables, headers or packages are declared.
Before you install
It publishes content to public social accounts, so anything sent is visible to third parties and may be hard to retract. Access is granted through OAuth, so review the scopes requested during sign-in. The supplied material does not describe approval or review steps beyond the word approved.

Installation

In SourceWeft

  1. Open PostRelay in the dashboard and add it to a workspace.
  2. Connect the required credentials. They are stored privately and never shown on public pages.
  3. 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.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.post-relay%2Fpostrelay/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config. The client completes OAuth sign-in on first connect.

{
  "mcpServers": {
    "postrelay": {
      "type": "http",
      "url": "https://post-relay.io/api/public/mcp"
    }
  }
}

Tools

0
This server asks you to sign in, so SourceWeft could not read its tools without an account and has not indexed them. What a connected account sees can depend on that account and its permissions.

Version history

1
  1. v1.0.0LatestNov 11, 2026

Score

83% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.