About Substack API MCP
Substack API MCP is an MCP server in the Commerce category: mCP server for Substack posts (FastMCP + substack-api-client).
Install
git clone https://github.com/alxgntv/substack-api-mcpThis server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.
Tools (14)
create_noteCreate a Substack Note (optional link attachment)
Parameters not published.
create_postCreate draft / publish now / schedule (+ optional tags)
Parameters not published.
create_tagCreate tag
Parameters not published.
delete_draftDelete draft
Parameters not published.
delete_noteDelete a Substack Note by id
Parameters not published.
get_draftFetch draft by id
Parameters not published.
get_post_tagsList tags on a post/draft
Parameters not published.
list_tagsList publication tags
Parameters not published.
pangram_detectionPangram AI-text / AI-slop check on a draft
Parameters not published.
publish_postPublish existing draft
Parameters not published.
Show all 14 tools
schedule_postSchedule existing draft
Parameters not published.
set_tagsEnsure + attach tags
Parameters not published.
test_connectionVerify `substack.sid` and return profile
Parameters not published.
update_draftUpdate draft fields
Parameters not published.
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