What is the main functional difference between Substack MCP and SpeedContent Social?

Substack MCP is categorized under Social Media and uses a local stdio subprocess. SpeedContent Social belongs to Social Media and uses an install path we have not confirmed yet. Pick Substack MCP for social media work and SpeedContent Social for social media.

How do I install Substack MCP or SpeedContent Social in Claude Desktop, Cursor, or Windsurf?

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client. SpeedContent Social has no confirmed install command yet — follow its own setup instructions.

Are Substack MCP and SpeedContent Social free to use, or do they require API keys?

Substack MCP is listed as free. Auth: other. SpeedContent Social has no declared pricing — check the project's own site. Auth: api key required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Can I run both Substack MCP and SpeedContent Social at the same time in my AI client?

Yes. MCP clients support multiple servers: add conorbronsdon-substack-mcp and speedcontent-social as separate keys in the same mcpServers object, and your assistant will call tools from either one.

Which MCP server has higher directory engagement and quality ratings?

On AllMCPs, Substack MCP has a quality signal of 68/100 (Great) with 5 views, 0 installs and 43 GitHub stars. SpeedContent Social has 53/100 (Good) with 0 views, 0 installs and 0 GitHub stars.

Substack MCP vs SpeedContent Social

Substack MCP vs SpeedContent Social | AllMCPs

Feature & specification comparison

Rows where the two servers differ are marked.

Spec	Substack MCP	S SpeedContent Social
Category	Social Media	Social Media
Quality signal	68/100 · Great	53/100 · Good
Install command	Confirmed	Not confirmed yet
Transport	Local subprocess (stdio)	—
Auth	other	API key required
Pricing	Free	Not declared
Required env vars	`SUBSTACK_PUBLICATION_URLSUBSTACK_SESSION_TOKENSUBSTACK_USER_IDSUBSTACK_MCP_HOME`	`SPEEDCONTENT_API_KEY`
Verified owner	Community listing	Community listing
GitHub stars	43	0
Directory activity	5 views 0 installs 0 upvotes	0 views 0 installs 0 upvotes
Tools	14	5
Full listing	View Substack MCP	View SpeedContent Social

Tools & capabilities

Substack MCP tools 14

get_subscriber_countGet 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.
list_published_postsList published posts with pagination. Returns title, date, slug, and URL for each post.
list_draftsList draft posts. Returns title, creation date, and audience for each draft.
get_postGet the full content of a published post by ID. Returns title, body HTML, metadata.
get_draftGet the full content of a draft post by ID. Returns title, body, metadata.
get_post_commentsGet comments on a published post. Returns commenter name, comment body, date, and reaction counts.
get_sectionsList 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_analyticsGet 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_postsList 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_draftCreate a new draft post. Accepts markdown body which is converted to Substack's format. Does NOT publish — creates a draft only.
update_draftUpdate an existing draft post. Only works on unpublished drafts. Accepts markdown body.
upload_imageUpload 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).
+2 more on the listing page

SpeedContent Social tools 5

generate_social_postWrite a social media post from scratch for a given platform and topic. Use this when you do not already have a draft — for example to produce several variations at once, or for platforms whose conventions you are unsure of. If you have already written the post yourself, prefer score_text and humanize_text, which check and fix your own wording instead of replacing it. Returns a job id immediately — poll it with check_social_job, which usually completes in 20-90 seconds. Costs credits.
score_textCheck how machine-written a piece of text reads, using an external AI detector. Returns a score from 0 to 65 where 0 reads as human and anything above 30 is likely to be flagged. Use this on text you have already written to find out whether it will pass before it is published — it is a measurement you cannot make yourself. Costs 8 credits per call.
humanize_textRewrite text so it no longer reads as machine-written, using an external humanizing service. Use this on your own writing when score_text says it would be flagged. Brand names, domains and any lines listed in `preserve` are restored verbatim afterwards, because the humanizer rewrites whole sentences and splits names. Costs 1 credit per 20 words.
check_social_jobLook up a social post generation job by id. Returns the finished posts once the job completes, or its current progress while it runs. Costs nothing.
list_social_platformsList the platforms generate_social_post supports, with each one's default post length and emoji policy. Costs nothing and makes no network call.

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

Substack MCP

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "conorbronsdon-substack-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@conorbronsdon/substack-mcp"
      ],
      "env": {
        "SUBSTACK_PUBLICATION_URL": "YOUR_SUBSTACK_PUBLICATION_URL_HERE",
        "SUBSTACK_SESSION_TOKEN": "YOUR_SUBSTACK_SESSION_TOKEN_HERE",
        "SUBSTACK_USER_ID": "YOUR_SUBSTACK_USER_ID_HERE",
        "SUBSTACK_MCP_HOME": "YOUR_SUBSTACK_MCP_HOME_HERE"
      }
    }
  }
}

SpeedContent Social

No confirmed install command for SpeedContent Social yet — follow the setup steps linked from its listing page rather than a guessed package name.

Substack MCP vs SpeedContent Social

Which MCP server should you choose?

Choose Substack MCP when

S
Choose SpeedContent Social when

Feature & specification comparison

Tools & capabilities

Substack MCP tools 14

SpeedContent Social tools 5

Ready-to-paste client configs

Substack MCP

SpeedContent Social

Frequently asked questions

Choose Substack MCP when

SChoose SpeedContent Social when

Substack MCP tools 14

SpeedContent Social tools 5

Substack MCP

SpeedContent Social

Frequently asked questions

What is the main functional difference between Substack MCP and SpeedContent Social?

How do I install Substack MCP or SpeedContent Social in Claude Desktop, Cursor, or Windsurf?

Are Substack MCP and SpeedContent Social free to use, or do they require API keys?

Can I run both Substack MCP and SpeedContent Social at the same time in my AI client?

Which MCP server has higher directory engagement and quality ratings?

Popular comparisons with Substack MCP

Popular comparisons with SpeedContent Social

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