Best Substack MCP Servers
Substack is a platform that allows writers, journalists, and content creators to publish newsletters and charge subscriptions, enabling them to monetize their content directly from readers.
Why this server?
Enables username availability checking and handle monitoring for Substack.
AlicenseAqualityAmaintenanceMonitor taken usernames and get alerted the moment they free up or drop, so you can claim a handle before anyone else. Also checks live username availability across the major social platforms, domain availability across popular TLDs, and screens names for trademark conflicts.21168MITWhy this server?
Search and retrieve newsletters, issues, metadata, contacts, and chart rankings from Substack.

Reletterofficial
AlicenseAqualityBmaintenanceSearch 7M+ newsletters and full-text archives, with subscriber numbers, contacts, social accounts, rankings, and audience data.12MITWhy this server?
Detects Substack content platforms and suggests onboarding workflows for AI content buyers.
Why this server?
Allows importing Substack subscriptions and saved posts as full-text searchable content, and pulling authors' Substack archives into the knowledge base.
AlicenseAqualityBmaintenanceEnables AI clients to search, read, and analyze a local SQLite knowledge base built from the full public archives of people you follow, bookmark, or subscribe to, with tools for onboarding, querying, and topic tracking.124MITWhy this server?
Allows searching, reading, highlighting, commenting on, and saving Substack articles.
AlicenseAqualityDmaintenanceA Model Context Protocol server that enables scalable mobile automation for iOS and Android through a platform-agnostic interface, allowing LLMs to interact with mobile applications via accessibility snapshots or screenshot-based inputs.1915,8282Apache 2.0Why this server?
Allows AI assistants to interact with Substack publications to retrieve subscriber counts, list and read published posts or drafts, and manage draft content by creating or updating posts from Markdown, including support for image uploads.
AlicenseAqualityAmaintenanceMCP server for Substack — read posts, manage drafts, and upload images. Safe by design: cannot publish or delete.1411821MITWhy this server?
Provides tools for managing Substack content, including creating and updating drafts, publishing posts, uploading images, and posting short-form content to Substack Notes.
AlicenseAqualityFmaintenanceEnables AI tools to programmatically manage Substack content, including creating drafts, publishing posts, and posting to Substack Notes. It supports image uploads, live blogging, and document formatting compatible with Substack's ProseMirror editor.119MITWhy this server?
Enables management of Substack publications including creating and publishing posts with cover images, creating short-form notes, retrieving content and comments, and accessing profile information.
AlicenseBqualityNot gradedmaintenanceEnables interaction with Substack publications through natural conversation, allowing users to create posts with cover images, publish notes, manage content, and retrieve profile information.82Why this server?
Generates header images in Substack-optimized dimensions (1456x816) for newsletter posts.
AlicenseAqualityCmaintenanceGenerates blog and social media images using Google's Gemini AI with pre-configured platform presets for Ghost, Medium, Instagram, Twitter, LinkedIn, YouTube, and more.219MIT