Connect your account, then chat with AI to run tools.
Read Substack publications, posts, categories, and personalized feeds from chat for newsletter research and content workflows.
Try this workflow
Research a publication
Read recent posts from this Substack publication, summarize the main themes, audience, publishing cadence, and strongest article ideas.
Opens MCPBundles Studio with this server selected. After sign-in, chat and run tools from the same thread.
Browse all toolsBuilt for
Newsletter research, content strategy, creator analysis, media monitoring, reader workflows
Research a publication
Turns publication post history into editorial research.
Read recent posts from this Substack publication, summarize the main themes, audience, publishing cadence, and strongest article ideas.
Analyze a full post
Uses full public post content for content analysis.
Fetch this Substack post by subdomain and slug, then summarize the argument, structure, evidence, and reusable ideas.
Explore a category
Uses category discovery to guide publication research.
List Substack categories and suggest publications or topic areas to research for B2B SaaS content strategy.
Summarize my reader feed
Turns a personalized feed into a prioritized reading list.
Review my personalized Substack feed, group posts by topic, and list which ones deserve a deeper read today.
What Substack data can MCPBundles read?
It can browse publications by subdomain, list posts, fetch full public post content by slug, list categories, and read a personalized feed when a valid session token is connected.
What is a Substack subdomain?
A publication subdomain is the part before substack.com, such as example in example.substack.com. Publication tools use that short value.
Can it read paid-only posts?
Public posts are the reliable path. Paid-only posts can return truncated or limited content depending on the connected reader session and Substack access.
Related editorial
Substack Workflows with AI
How AI agents can browse any Substack publication, read full posts, explore categories, and summarise your personalised reader feed.
Domain knowledge for Substack — workflow patterns, data models, and gotchas for your AI agent.
Read Substack publications and posts. Browse categories, read full post content, and access your personalized reader feed.
Browse any Substack publication's posts by subdomain. Get titles, dates, reaction counts, comment counts, and audience type (everyone vs paid). No need to know the publication URL — just the subdomain.
Get full post content by slug. Returns the complete HTML body, wordcount, reactions, comments, subtitle, and metadata. Works for any public post on any publication.
List all 31 Substack categories with their subcategories. Useful for discovering publications in a topic area.
Access your authenticated reader feed showing posts, notes, and comments from your subscriptions. Returns publication metadata, user profiles, and engagement context.
Get your personalized Substack reader feed showing posts, notes, and comments from your subscriptions. Requires authentication. Filter by tab: 'for-yo...
Read the full content of a Substack post by subdomain and slug. Returns the complete HTML body, title, subtitle, wordcount, reactions, comments, publi...
List posts from any Substack publication by subdomain. Returns title, subtitle, date, audience type, reaction count, comment count, and slug for each ...
List all Substack categories (Technology, Culture, Business, etc.) with their subcategories, slugs, and emoji. Useful for discovering publications in ...
Read Substack publications, posts, and personalized feeds. Browse any publication's posts, read full post content, explore categories, and access your personalized reader feed — all through Substack's API. It provides 4 tools that AI agents can use through the Model Context Protocol (MCP).
Add the MCPBundles server URL to your MCP client configuration (Claude Desktop, Cursor, VS Code, etc.). The URL format is: https://mcp.mcpbundles.com/bundle/substack. Authentication is handled automatically.
Substack provides 4 tools that can be called by AI agents, along with a SKILL.md that gives your AI agent domain knowledge about when and how to use them.
Substack uses API Key. Substack requires credentials. Connect via MCPBundles and authentication is handled automatically.
It can browse publications by subdomain, list posts, fetch full public post content by slug, list categories, and read a personalized feed when a valid session token is connected.
A publication subdomain is the part before substack.com, such as example in example.substack.com. Publication tools use that short value.
Public posts are the reliable path. Paid-only posts can return truncated or limited content depending on the connected reader session and Substack access.
The strongest workflows are publication research, full-post summarization, category exploration, competitor newsletter analysis, and personalized feed triage.
Connect Substack to any MCP client in minutes
The link prefills the Add custom connector dialog — you still review the values and click Add, then Connect to complete OAuth.
Substack and paste the MCP URL into Remote MCP server URL.Custom connectors at claude.ai require a paid Claude plan (Pro, Max, Team, or Enterprise).
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