Mellow Hub

world.mellow.wwwPublished by www.mellow.worldOfficial publisherv1.5.0Updated Oct 31, 2026

Post and schedule to Instagram, TikTok, YouTube, LinkedIn, X, Threads, Bluesky, Pinterest, Facebook.

VerifiedStreamable HTTPWeb executableCommunication & CollaborationBusiness & Commerce

Overview

AI-generated overview

Hosted MCP server that lets an assistant publish and schedule posts to nine social networks, with validation, previews and post metrics.

What you can do
  • Check the credential's reachable channels, publishing mode and remaining daily posts
  • Validate a draft against each network's caption, media and title rules, and preview it
  • Publish now or schedule posts across Instagram, TikTok, YouTube, X, LinkedIn, Threads, Bluesky, Pinterest and Facebook
  • List, read, update, reschedule or cancel existing posts and see per-network results
  • Upload media via upload URLs and registration, and read post-level metrics
When to use it
Useful when you want an assistant to draft, validate and cross-post social content on a schedule, or to manage and measure existing posts, without handling network passwords itself.
Requirements
Remote Streamable HTTP endpoint at the provider's site; no local install. OAuth 2.1 with dynamic client registration and PKCE, or an API key created in the owner's cabinet used as a bearer token. Social accounts must be connected through the provider's Channels page. Publishing requires a paid subscription after a 7-day trial.
Before you install
The credential can publish to real social accounts, so grant only the channels and mode you intend; review mode limits it to preparing posts for approval. Publishing costs money after the trial (plans from $19 a month). Actions are journaled and revocation applies on the next request. An agent credential cannot create other credentials or approve its own posts.

Installation

In SourceWeft

  1. Open Mellow Hub 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/world.mellow.www%2Fhub/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": {
    "mellow-hub": {
      "type": "http",
      "url": "https://www.mellow.world/mcp"
    }
  }
}

README

Mellow Hub MCP

Mellow Hub is a hosted MCP server and REST API that lets an AI agent (Claude, ChatGPT, Cursor and others), or a person, publish and schedule posts to nine social networks: Instagram, TikTok, YouTube, X, LinkedIn, Threads, Bluesky, Pinterest and Facebook.

This repository describes the hosted server. Its source code is not published here, and there is nothing to build or run locally.

Connect

The endpoint speaks OAuth 2.1 with dynamic client registration and PKCE. A client that supports OAuth discovery registers itself and shows the person a consent screen. If a client cannot do OAuth, an API key that the owner creates in the cabinet works as the bearer token on the same endpoint.

Claude Code:

sh
claude mcp add --transport http mellow https://www.mellow.world/mcp

Clients that read an mcp.json:

json
{  "mcpServers": {    "mellow": {      "type": "http",      "url": "https://www.mellow.world/mcp"    }  }}

In claude.ai or ChatGPT, add it as a custom connector with the same URL.

What the server does

  • whoami says which channels this credential can reach, whether it publishes on its own or only prepares posts for a person to approve, and how many posts remain today.
  • validate_post checks a post against every network's own rules (caption length, media count and type, required title or board) before anything is sent, and lists every problem at once.
  • create_post publishes now or schedules. Each network succeeds or fails on its own and returns its own link. Idempotency keys stop a retry from posting twice.
  • list_channels, list_platforms, preview_post, list_posts, get_post, post_results, cancel_post, reschedule_post and update_post cover the rest of the life of a post; request_upload_url and register_media handle uploads; get_metrics returns post-level views.
  • connect_channel hands the person to the Channels page; an agent never receives a network password.

The full and current tool list, with arguments, is in the documentation.

Who is in control

Access is delegated by the owner, on a consent screen: the channels the agent may touch, review or autopilot mode, a daily ceiling and an expiry. Every action is written to a journal the owner can read, and revoking a credential applies on the next request. An agent credential cannot create another credential or approve its own posts.

Limits, stated plainly

  • No team seats, no inbox, and no comment or message management for users in general.
  • TikTok blocks uploads from an account registered in Russia for everyone but the account's owner.
  • Connecting accounts, drafts and validation are free. Publishing needs a subscription after a 7-day trial; plans start at $19 a month.

More

Source: README.md at commit e13afdd

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

5
  1. v1.5.0LatestOct 10, 2026
  2. v1.3.1Oct 1, 2026
  3. v1.3.0Sep 22, 2026
  4. v1.2.0Sep 21, 2026
  5. v1.0.0Sep 16, 2026

Score

75% 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
  • License10 pts

    Declare a license in the repository or the registry entry.

Other Mellow integrations

Mellow Tapir Radio Spectrum Guide

Published by GitHub account guycole

Read-only radio spectrum catalog server that lets an assistant classify frequencies, list channels and search services from 108 MHz to 1 GHz.

STDIODesktop only
DatabasesNot validated yetNov 3, 2026