Instagram MCP vs Substack MCP — MCP Server Comparison | AllMCPs
Side-by-Side Model Context Protocol Comparison
Instagram MCP vs Substack MCP
In-depth architectural comparison of the Instagram MCP and Substack MCP MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
Instagram MCP
Social Media · Remote HTTP/SSE
Quality: 47/100 (Fair) | Auth: API Key required
Substack MCP
Social Media · Local stdio
Quality: 68/100 (Great) | Auth: other
Verdict Summary: Choose Instagram MCP if you need specialized Social Media tools running via a hosted cloud SSE transport. Choose Substack MCP if your workspace requires Social Media integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.
Which MCP Server Should You Choose?
Choose Instagram MCP when:
You need dedicated capabilities in the Social Media domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: API Key required (Free / Open Source).
You have access to required keys: META_ACCESS_TOKEN, IG_USER_ID.
Primary tools included: Instagram photo, reel, and carousel publishing, Account and media insights, Comment moderation and replies.
Control Instagram from Claude: publish photos, reels, and carousels, read account insights, manage comments, and reply to DMs. 14 tools via the Instagram Login API. One-click free Render deploy for Claude Web and mobile.
MCP server for Substack — read posts, manage drafts, publish Notes, get comments, and upload images. Safe by design: cannot publish or delete posts.
Category & Scope
Tools & Capabilities Breakdown
Instagram MCP Tools (6)
Instagram photo, reel, and carousel publishing
Account and media insights
Comment moderation and replies
Direct-message thread access and replies
Profile, hashtag, event, and ad operations
Local stdio and streamable HTTP modes
Substack MCP Tools (14)
get_subscriber_count
Get the current subscriber count for your Substack publication. Returns `precision`: 'exact' when the API reports a true count, 'approximate' when only Substack's rounded value is available (the real number is that or higher — render it hedged, e.g. '1,000+'), or 'unavailable' with count -1. Never treat an approximate value as exact.
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
Instagram MCP is categorized under Social Media and uses a remote streaming HTTP/SSE transport. In contrast, Substack MCP belongs to Social Media using local stdio subprocess. Select Instagram MCP when you need capabilities focused on social media and Substack MCP when you require tools for social media.
List published posts with pagination. Returns title, date, slug, and URL for each post.
list_drafts
List draft posts. Returns title, creation date, and audience for each draft.
get_post
Get the full content of a published post by ID. Returns title, body HTML, metadata.
get_draft
Get the full content of a draft post by ID. Returns title, body, metadata.
get_post_comments
Get comments on a published post. Returns commenter name, comment body, date, and reaction counts.
get_sections
List your publication's sections (categories). Returns each section's id and name. Use a section id as `section_id` when creating or updating a draft to file it under that section.
get_post_analytics
Get performance stats (views, emails sent/delivered/opened, signups, subscribes, estimated value, comments, reactions) for a published post by ID. Substack has no per-post stats endpoint, so this searches your 500 most recent published posts for the ID; returns a not-found note if it isn't among them.
list_scheduled_posts
List posts scheduled for future publication, soonest first. Read-only visibility into what's queued — scheduling itself is done in Substack's editor (this server does not schedule, publish, or delete long-form posts). Returns id, title, audience, and scheduled time (`trigger_at`).
create_draft
Create a new draft post. Accepts markdown body which is converted to Substack's format. Does NOT publish — creates a draft only.
update_draft
Update an existing draft post. Only works on unpublished drafts. Accepts markdown body.
upload_image
Upload an image to Substack's CDN. Provide exactly one of `image_base64` (a base64 data URI) or `image_path` (a local file path). Returns a hosted image URL that is publicly fetchable by anyone with the link (an unlisted asset — not attributed to you or added to your feed).