substack-mcp
An MCP server for Substack. Read your publication data and manage drafts from your AI agent. Long-form posts are draft-only by design — no publish, no delete. Short-form Notes publish immediately.
An MCP server for Substack that lets AI assistants read your publication data and manage drafts. The draft list shown in the demo above is sample data, not real account values.
Safe by design — with one loud exception: This server cannot publish or delete long-form posts. Post tools create and edit drafts only; you review and publish manually through Substack's editor. The exception is Substack Notes: create_note and create_note_with_link publish short-form Notes immediately, because Notes have no draft state on Substack. Treat the Note tools as public-publish actions — there is no preview step and no undo from this server.
About
Built and maintained by Conor Bronsdon for the Chain of Thought podcast production workflow, where it drafts and reviews newsletter posts before a human hits publish. Conor hosts Chain of Thought, a show about AI infrastructure and how practitioners actually build with it. More tools for creators live in ai-tools-for-creators. Find Conor on X at @ConorBronsdon.
