MCP servers · Substack · MCP server
Connect Gemini CLI to Substack
One line gives Gemini CLI your Substack account as tools: 3 endpoints, read posts, search posts, called with your own connection. No key in the prompt, a receipt for every call, revoke Gemini CLI's access alone any time.
Three steps
- Create a free 0n3 account and connect Substack. Paste a key or sign in; it lands in your vault, encrypted.
- Install 0n3 into Gemini CLI. Google's terminal agent. One command at user scope.
- Ask Gemini CLI: whoami. Then: "List posts in Substack".
Install (user scope)
gemini mcp add --scope user --transport http 0n3 https://0n3.app/mcp -H "Authorization: Bearer <your 0n token>"
The line above carries a placeholder; 0n3.app/install mints a real key named for Gemini CLI and fills it in.
What Gemini CLI can then do in Substack
Read posts · List a publication's posts (archive) and fetch a single post by slug2
List posts
GET /archiveGet a post
GET /posts/{slug}Search posts · Search posts within a publication1
Search posts
GET /post/searchSubstack in other AI clients
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