Prototype · Preview: every server in the official registry, synced every 30 minutes. Reviews and accounts come in a later step.
PopNx MCPMCP servers for people who use AI · explained in plain words

Mellow Hub

by wco1version 1.7.0i★ –iRuns in the cloud
Registry nameworld.mellow.www/hub

Install

Overview

Description from the maker (original English)

Find what took off on YouTube, TikTok and Instagram, then post to ten social networks.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs in the cloud
  • Transport: Streamable HTTP
  • Category: Marketing & social media

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 3 of 3 passed
  • Runs on the maker’s server: what you ask it goes through their server.
  • The registry lists no key to fill in.

You need

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://www.mellow.world/mcp

Run this in your terminal

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

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "hub": {
      "url": "https://www.mellow.world/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "hub": {
      "type": "http",
      "url": "https://www.mellow.world/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://www.mellow.world/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

The server asks you to sign in before it lists its tools.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 10, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain www.mellow.world (the registry checks domain ownership)

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • ✓ Pass

    Endpoint responds

    Responded in 517 ms (HTTP 401)

  • ✓ Pass

    Sign-in with OAuth

    Declares OAuth sign-in, so your AI app can take you to log in

  • … Not checked yet

    No hidden instructions in tool descriptions

    Not checked yet; we read the tool list when we check the endpoint

Compared with others in Marketing & social mediai

  • More stars than 0% of the other 3706 servers in this category
  • Published to the registry more recently than 95% of the other 3706 servers in this category
  • Basic checks equal to or better than 100% of the other 3706 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Mellow Hub safe?

It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.7.0) reached the registry yesterday.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: MCP YouTube Transcript, Google Analytics MCP, BibiGPT YouTube Video Summarizer

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

MCP YouTube Transcript

An MCP server retrieving transcripts of YouTube videos

by jkawamotoGrowing★ 495Updated 13 days ago

Runs on your computer

Google Analytics MCP

GA4 MCP server for AI agents: schema discovery, server-side aggregation, analysis-ready defaults.

by surendranbGrowing↓ 1.1K/wk★ 244Updated 13 days ago

Runs on your computer

BibiGPT YouTube Video Summarizer

AI video summarizer: summarize and transcribe YouTube, Bilibili, TikTok and podcast videos.

by JimmyLvGrowing★ 137Updated 13 days ago

Runs in the cloud✓ bibigpt.co

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

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.

  • Endpoint: https://www.mellow.world/mcp (Streamable HTTP)
  • Registry name: world.mellow.www/hub in the official MCP Registry
  • Documentation: https://www.mellow.world/hub/docs
  • Made by Spody App, LLC. Contact: contact@mellow.world

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:

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

Clients that read an mcp.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

  • Free browser tools (carousel maker, character and hashtag counters, image and video checkers): https://www.mellow.world/hub/tools
  • Answers about limits and cross-posting: https://www.mellow.world/hub/answers
  • Pricing: https://www.mellow.world/hub/pricing
Ask PopNx