Ext Ops Panel
Open dashboard

Substack by Cotlet

Posts, Notes, messages, subscribers and stats for your publication.

MCP server · by cotlet.dev

About

Substack by Cotlet is an MCP server published by cotlet.dev. Marketplaces we read that list it: 1 (Official MCP Registry). The last change we recorded was on 2026-10-30. As of our marketplace pass on 2026-11-04.

What it asks for

  • Runs remotely

None of the marketplaces we read publishes its tools or the settings it asks for.

What it declares, asks for and runs, in full

Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.

Works with

  • Claude Code
  • Codex
  • Cursor
  • VS Code
  • Copilot CLI

A one-click link opens the client, which asks you to confirm before it adds the server.

From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.

Connect

Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.

As a remote MCP server

Built from what Official MCP Registry declares.

Claude CodeTerminal
claude mcp add --transport http substack https://cotlet.dev/mcp/v1/substack/connect
Codex~/.codex/config.toml
[mcp_servers.substack]
url = "https://cotlet.dev/mcp/v1/substack/connect"
Cursor~/.cursor/mcp.json
{
  "mcpServers": {
    "substack": {
      "url": "https://cotlet.dev/mcp/v1/substack/connect"
    }
  }
}

Where it is published

MarketplaceStatusVersionFiguresVerifiedFirst seen
Official MCP Registry (Open the registry record) Listed 1.0.2 Forks (GitHub): 0
Stars (GitHub): 6
Not marked

Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.

How its figures have moved

Stars (GitHub)
+3 since 24.10
3-6 · 4 readings
  1. 2026-10-243
  2. 2026-10-275
  3. 2026-10-306
  4. 2026-11-036

Each dot is a day we read a different number; flat stretches are days the number did not move. Figures of different marketplaces are never added up.

What changed

  1. Official MCP Registry: launch arguments changed: added <>
  2. Official MCP Registry: repository or package changed
  3. Official MCP Registry: released version 1.0.2 (was 1.0.1)
  4. Official MCP Registry: released version 1.0.1 (was 1.0.0)
  5. Became a product we track
  6. Official MCP Registry: appeared

Similar plugins

Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.

  • Substack MCP Server

    Substack drafts, Notes, analytics and consented subscribers. Long-form posts stay draft-only.

    by conorbronsdon · MCP server

    Listed on: Official MCP Registry, npm registry (MCP servers), Community GitHub marketplaces · Describes nearly the same job

  • Substack MCP Server

    Manage Substack publishing, subscribers, analytics, reader feeds, comments, and images through MCP.

    by marcomoauro · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • FastMCP server for Substack — publish Notes and posts, pull analytics, manage dr

    FastMCP server for Substack — publish Notes and posts, pull analytics, manage drafts, pluggable…

    by adelaidasofia · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • mcp-substack-scraper com.mambabuilt/mcp-substack-scraper

    Substack publications, posts, subscriber counts, and keyword search.

    by mambabuilt.com · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • Substack Newsletter MCP

    Substack newsletter, posts & podcast search

    by dancerdan15 · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • beehiiv

    Manage beehiiv newsletters, posts, podcasts, community, subscribers, and analytics.

    by beehiiv.com · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • WriteStack

    Draft & schedule Substack Notes, manage articles, and read stats via WriteStack.

    by writestack.io · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • Misar.Blog MCP Server

    Publish and manage articles, series, comments, reactions, newsletters, and analytics — from any AI…

    by Misar-AI · MCP server

    Listed on: Official MCP Registry, npm registry (MCP servers) · Describes nearly the same job

  • SuperPost

    Manage SuperPost sources, ideas, posts, Autopilot settings, and analytics through MCP.

    by hardtab · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • NewsletterFIT

    Search 89,000+ Substack and beehiiv newsletters, their sponsors, topics and mentioned companies.

    by newsletterfit.com · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

Similar plugins by marketplace

The same question asked of one marketplace at a time: is there an analog of this plugin there?

Has a listing on Claude Code: claude-plugins-community (5)
  • wordpress-mcp

    Manage WordPress sites directly from Claude using the WordPress MCP Adapter. Connect Claude to any WordPress 6.9+ site and manage content, users, settings, and WooCommerce — all…

    by MSApps-Mobile · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

  • sanity

    Sanity content platform integration with MCP server, agent skills, and slash commands. Query and author content, build and optimize GROQ queries, design schemas, and set up Visual…

    by sanity-io · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community, Community GitHub marketplaces · Describes nearly the same job

  • claude-blog-assistant

    Dual-mode blog publishing assistant. Ship new posts via 8-step lifecycle OR audit existing posts. Wraps AgriciDaniel/claude-blog.

    by johnericforte · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

  • socialclaw-social-media-scheduling-posting-and-analytics-for-ai-

    SocialClaw is a social media scheduling skill for AI agents posting, connecting accounts, scheduling posts, uploading media, or managing campaigns on to X, LinkedIn, Instagram…

    by ndesv21 · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

  • shipnote

    Turn your daily dev activity into build-in-public posts. Scans git repos, generates human-sounding posts, schedules future posts, and auto-publishes to Threads.

    by PetarStoev02 · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

Has a listing on Claude Code: claude-plugins-official (5)
  • sanity

    Sanity content platform integration with MCP server, agent skills, and slash commands. Query and author content, build and optimize GROQ queries, design schemas, and set up Visual…

    by sanity-io · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community, Community GitHub marketplaces · Describes nearly the same job

  • postiz

    Social media automation CLI for scheduling posts, managing integrations, uploading media, and tracking analytics across 28+ platforms including X, LinkedIn, Reddit, YouTube…

    by gitroomhq · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community, Community GitHub marketplaces · Describes nearly the same job

  • mintlify

    Build beautiful documentation sites with Mintlify. Convert non-markdown files into properly formatted MDX pages, add and modify content with correct component use, and automate…

    by mintlify · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins · Describes nearly the same job

  • lovable

    Build, iterate on, deploy, and manage Lovable apps from Claude Code. Bundles the official Lovable MCP server (remote, OAuth 2.1) and adds focused commands for the common…

    by lovablelabs · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry · Describes nearly the same job

  • RevenueCat

    Configure RevenueCat projects, apps, products, entitlements, and offerings directly from Claude Code. Manage your in-app purchase backend without leaving your development workflow.

    by RevenueCat · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude Code: claude-plugins-community, Community GitHub marketplaces · Describes nearly the same job

Has a listing on Claude: knowledge-work-plugins (5)
  • sanity

    Sanity content platform integration with MCP server, agent skills, and slash commands. Query and author content, build and optimize GROQ queries, design schemas, and set up Visual…

    by sanity-io · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community, Community GitHub marketplaces · Describes nearly the same job

  • postiz

    Social media automation CLI for scheduling posts, managing integrations, uploading media, and tracking analytics across 28+ platforms including X, LinkedIn, Reddit, YouTube…

    by gitroomhq · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community, Community GitHub marketplaces · Describes nearly the same job

  • mintlify

    Build beautiful documentation sites with Mintlify. Convert non-markdown files into properly formatted MDX pages, add and modify content with correct component use, and automate…

    by mintlify · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins · Describes nearly the same job

  • Pendo Guides

    Create production-ready Pendo in-app guides (walkthroughs, announcements, alerts, polls, promotions) as HTML/CSS/JS from a short intake conversation, using Pendo's guide…

    by pendo-io · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins · Describes nearly the same job

  • Hostinger

    Deploy, manage and monitor your Hostinger services directly from Claude Code. The plugin connects Claude to Hostinger's remote MCP server, so you can ship sites and apps, manage…

    by hostinger · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community · Describes nearly the same job

Has a listing on Codex: openai-curated (openai/plugins) (5)
  • ChatCut

    Install, open, and connect the signed ChatCut Desktop app from Codex.

    by ChatCut · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • SharePoint

    Work with SharePoint using the configured Microsoft SharePoint app connector.

    by OpenAI · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • PostHog

    PostHog gives your AI agent direct access to your product analytics, feature flags, experiments, error tracking, surveys, logs, and LLM analytics. Ask questions about your data…

    by PostHog Inc. · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • Airtable

    Bring operational data and context into the flow of your ChatGPT conversations. You can ask questions, create and update records, and analyze your data—all through conversation…

    by Airtable · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • Slack

    Work with Slack using the configured Slack integration.

    by Slack · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

Has a listing on Community GitHub marketplaces (5)
  • Substack MCP Server

    Substack drafts, Notes, analytics and consented subscribers. Long-form posts stay draft-only.

    by conorbronsdon · MCP server

    Listed on: Official MCP Registry, npm registry (MCP servers), Community GitHub marketplaces · Describes nearly the same job

  • ghost

    Manage Ghost CMS content over the Admin API — browse posts, pages, and tags, draft and publish content, schedule posts, and inspect site info from the terminal. Do not use this…

    by magnus919 · Plugin bundle

    Listed on: Community GitHub marketplaces · Describes a similar job

  • Buttondown Mgmt

    Manage one or more Buttondown newsletters from Claude Code — multi-newsletter config, reusable email templates, drafts, sends, subscribers, and API ops grounded in a locally…

    by danielrosehill · Plugin bundle

    Listed on: Community GitHub marketplaces · Describes a similar job

  • sanity

    Sanity content platform integration with MCP server, agent skills, and slash commands. Query and author content, build and optimize GROQ queries, design schemas, and set up Visual…

    by sanity-io · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community, Community GitHub marketplaces · Describes a similar job

  • wordpress-publisher

    Publish content directly to WordPress sites via REST API with full Gutenberg block support. Create and publish posts/pages, auto-load and select categories from website, generate…

    by M Asif Rahman · Plugin bundle

    Listed on: Community GitHub marketplaces · Describes a similar job

Has a listing on Copilot CLI: github/awesome-copilot (5)
  • spacefast

    Build and publish websites, dashboards, reports, and small web tools with Spacefast. Includes skills for editing Spaces, sharing previews, connecting domains, and restoring…

    by spacefast · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • vercel

    Vercel deployment platform integration. Manage deployments, check build status, access logs, configure domains, and control your frontend infrastructure directly from Claude Code.

    by vercel · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Copilot CLI: github/awesome-copilot, Claude Code: claude-plugins-community, Community GitHub marketplaces · Describes nearly the same job

  • site-studio

    Plan, draft, and track a personal website section by section — a shared canvas where you and your agent author content, watch progress, and review every change.

    by Ayan Gupta · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • nitrosend

    Prepare and review email campaigns, automation flows, contacts and transactional messages in Nitrosend through its hosted OAuth MCP server. Includes a scoped skill for account…

    by nitrosend · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • roundup

    Self-configuring status briefing generator. Learns your communication style from examples, discovers your data sources, and produces draft updates for any audience on demand.

    by Awesome Copilot Community · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes nearly the same job

Has a listing on Copilot CLI: github/copilot-plugins (5)
  • workiq

    Query Microsoft 365 data with natural language — emails, meetings, documents, Teams messages, and more.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins, npm registry (MCP servers) · Describes nearly the same job

  • canvas-apps

    Build Power Apps Canvas Apps using the Canvas Authoring MCP server.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • microsoft-365-agents-toolkit

    Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • mcp-apps

    Generate MCP App widgets for MCP tools. Produces self-contained HTML widgets using the MCP Apps protocol.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • workiq-productivity

    WorkIQ productivity skills powered by the local WorkIQ CLI — read-only insights across email, meetings, calendar, Teams, SharePoint, projects, and people.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

Has a listing on Cursor: cursor/plugins (5)
  • beehiiv

    Run your beehiiv newsletter from chat: draft and edit posts, organize subscribers with tags, custom fields, and segments, build automations, and review publication, post, and…

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

  • Buffer

    Manage social media with Buffer: draft, schedule, and publish posts across connected channels, manage the queue and ideas, and review post performance.

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

  • Coda

    Search docs, read pages, and update tables.

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

  • PostHog MCP

    Work with PostHog from chat: query product analytics and run SQL, manage feature flags and experiments, triage error tracking issues, and review session replays, surveys, and…

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes a similar job

  • Intercom

    Search conversations, contacts, and Help Center articles.

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes a similar job

Has a listing on Docker MCP Catalog (4)
  • DevHub CMS

    DevHub CMS LLM integration through the Model Context Protocol.

    by devhub · MCP server

    Listed on: Docker MCP Catalog · Describes nearly the same job

  • Kagi Search

    The Official Model Context Protocol (MCP) server for Kagi Search & other tools.

    by kagisearch · MCP server

    Listed on: Docker MCP Catalog · Describes nearly the same job

  • Postman MCP Server

    Give your AI agents trusted access to the full Postman platform.

    by postman.com · MCP server

    Listed on: Official MCP Registry, Docker MCP Catalog, npm registry (MCP servers) · Describes nearly the same job

  • Cloudflare Docs

    Access the latest documentation on Cloudflare products such as Workers, Pages, R2, D1, KV.

    by docker · MCP server

    Listed on: Docker MCP Catalog · Describes a similar job

Has a listing on Official MCP Registry (5)
Has a listing on PyPI (MCP servers) (5)
  • Outline MCP Server

    Connect AI assistants to Outline for document search, reading, and management

    by Vortiago · MCP server

    Listed on: Official MCP Registry, Claude Code: claude-plugins-community, PyPI (MCP servers), Community GitHub marketplaces · Describes nearly the same job

  • NewsBlog Composer

    Verifies news stories, mines SEO keywords, builds schema and reviews your draft. You write it.

    by Mohammed-Jameal-J · MCP server

    Listed on: Official MCP Registry, PyPI (MCP servers) · Describes nearly the same job

  • contentful-management com.mcparmory/contentful-management

    Create, update, and publish content across spaces and environments

    by mcparmory.com · MCP server

    Listed on: Official MCP Registry, PyPI (MCP servers) · Describes nearly the same job

  • perigon com.mcparmory/perigon

    Search real-time news articles, companies, journalists, and trending topics

    by mcparmory.com · MCP server

    Listed on: Official MCP Registry, PyPI (MCP servers) · Describes nearly the same job

  • notion com.mcparmory/notion

    Create, update, and manage pages, databases, and workspace users

    by mcparmory.com · MCP server

    Listed on: Official MCP Registry, PyPI (MCP servers) · Describes nearly the same job

Has a listing on npm registry (MCP servers) (5)
  • Substack MCP Server

    Substack drafts, Notes, analytics and consented subscribers. Long-form posts stay draft-only.

    by conorbronsdon · MCP server

    Listed on: Official MCP Registry, npm registry (MCP servers), Community GitHub marketplaces · Describes nearly the same job

  • Misar.Blog MCP Server

    Publish and manage articles, series, comments, reactions, newsletters, and analytics — from any AI…

    by Misar-AI · MCP server

    Listed on: Official MCP Registry, npm registry (MCP servers) · Describes nearly the same job

  • posterly

    Validate, schedule, publish, and analyze social content across 18 platforms with posterly.

    by awpthorp · MCP server

    Listed on: Official MCP Registry, npm registry (MCP servers) · Describes a similar job

  • Postbase

    Schedule social posts, threads and video to X, LinkedIn, Bluesky, Mastodon and YouTube from your AI.

    by postbasehq · MCP server

    Listed on: Official MCP Registry, npm registry (MCP servers) · Describes a similar job

  • postfast-mcp io.github.peturgeorgievv-factory/postfast-mcp

    MCP server for the PostFast API — schedule and manage social media posts via AI tools

    by peturgeorgievv-factory · MCP server

    Listed on: Official MCP Registry, npm registry (MCP servers) · Describes a similar job

Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.

Want this mark on your plugin in our catalog?

Prove you maintain it with a file in its repository, a file on your domain or a DNS record, and you can show this mark on the card, with live banners for your site and README. How verification works

You also get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.

Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.

Where the data comes from: how the catalog is built