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?
Detects Substack content platforms and suggests onboarding workflows for AI content buyers.
AlicenseAqualityBmaintenanceLicensing infrastructure for premium content from specialist publishers in geopolitics, finance, AI and industry. License articles for your AI product to answer from, take a publication's full catalogue, license it for training, or show it to your clients, all under one contract, with every use tracked and the publisher paid.201,377 npm1MITWhy this server?
Provides Substack intelligence data including posts, archives, and publication statistics.

subimpact-data-mcpofficial
AlicenseAqualityBmaintenance19 public-data tools for AI agents: Google SERP with full AI Overviews, Google AI Mode, Southeast Asia + global news mentions, Google Maps, Jobs, Trends, Ads Transparency, website contacts, YouTube, TikTok and more. Each tool runs a pay-per-result Apify actor on your own Apify token, with a per-call spending cap.20702 npmMITWhy this server?
Provides tools for interacting with Substack's web endpoints using your own signed-in Chrome session: create posts and drafts from Markdown, publish and schedule them, post Notes, read and reply to comments, and manage subscribers. Also covers stats (subscriber growth, revenue, opens, referral sources), recommendations, and direct messages — 50 tools that can be used via MCP clients, a local REST API with OpenAPI docs, or Python scripts.
AlicenseAqualityAmaintenanceEnables AI agents and scripts to manage a self-hosted Substack account through a Chrome session, covering posts and Markdown drafts, scheduling, Notes, comments, subscribers, stats, recommendations, and direct messages via MCP, REST API, or Python.2503PolyForm Noncommercial 1.0.0Why this server?
Search and retrieve newsletters, issues, metadata, contacts, and chart rankings from Substack.

Reletterofficial
AlicenseAqualityCmaintenanceSearch 7M+ newsletters and full-text archives, with subscriber numbers, contacts, social accounts, rankings, and audience data.12MITWhy this server?
Provides tools for archiving and analyzing Substack publication content and metrics, including syncing the public RSS archive, maintaining immutable content versions, recording metric snapshots from Substack's official analytics, comparing post performance, and analyzing content patterns.
AlicenseAqualityCmaintenanceA credential-free MCP server that turns a Substack publication's public RSS archive and official analytics snapshots into a durable, queryable local SQLite ledger. It provides 12 MCP tools for browsing posts, tracking versions, recording metric snapshots, and analyzing content patterns.12Apache 2.0Why this server?
Manages saved/bookmarked Substack posts, including syncing, searching, retrieving full content, and toggling save/unsave status.
AlicenseAqualityAmaintenanceA local MCP server for managing saved Substack posts. Enables offline reading, searching, bookmarking, and unbookmarking of Substack content via CLI or MCP clients.18MITWhy this server?
Allows publishing blog articles to Substack via PostKing.
AlicenseBqualityBmaintenanceAn MCP server for PostKing that enables AI-powered content management, social media scheduling, blog publishing, and brand management through natural language conversations.10052 npm1MITWhy this server?
Provides tools for accessing and searching Recon's Substack newsletter content, including retrieving full posts and searching across all newsletter content.
MITWhy this server?
Provides comprehensive tools for interacting with Substack's platform, including managing posts, notes, comments, replies, reactions, restacks, recommendations, profiles, feeds, and automations. Enables AI-assisted drafting and publishing of content through MCP-native tools.
AlicenseAqualityBmaintenanceStandalone Substack CLI + 26-tool MCP server. Your IDE drafts the replies. Zero AI API keys.261MIT