Postbase
The social scheduler even your AI can run.
Postbase is an open-source, MCP-native social media
scheduler. Connect your channels, compose and schedule posts, and Postbase publishes
them across every channel on time — from a clean dashboard, or straight from the AI
tools you already work in.
- MCP-native — Claude, ChatGPT, Cursor, Claude Code and other MCP clients can
draft and schedule posts through the hosted server at
https://mcp.postbase.so/mcp
(OAuth sign-in) or the @postbasehq/mcp
npm package (API key). There's a REST API too.
- Built-in AI agent — a chat in the app that drafts posts and schedules them
once you confirm.
- Self-host free, or use the hosted cloud —
same product either way.
Channels: X, LinkedIn, Bluesky, Mastodon, TikTok, YouTube · Instagram, Facebook
and Threads coming soon.
Docs: docs.postbase.so
Tech stack
- Next.js (App Router) + TypeScript + Tailwind
- Supabase — Postgres, Auth, Storage
- Vercel Cron — scheduled-publishing poller
@postbasehq/mcp — MCP server (npm)
Getting started
npm install
cp .env.example .env.local # fill in your Supabase (and later, platform) keys
npm run dev
Apply the database schema in supabase/migrations/ (via the Supabase SQL editor
or the CLI). To run the scheduled publisher locally (polls the publish endpoint):
npm run poll # in a second terminal
In production, a Vercel Cron job hits /api/cron/publish every minute
(vercel.json), so no separate worker is needed.
MCP server
Add Postbase to your AI client and let an agent schedule posts for you. The MCP
server lives in its own repo: postbasehq/mcp
(published as @postbasehq/mcp on
npm). Tools: list_channels, create_post, list_scheduled, cancel_post.
Project layout
app/ Next.js routes (marketing, dashboard, /api, /api/v1)
components/ UI components
lib/ Supabase clients, publishing adapters, plans/billing, API core
supabase/ SQL migrations
legal/ Privacy Policy & Terms (source for /privacy and /terms)
The MCP server is maintained separately at
postbasehq/mcp.
License
AGPL-3.0-or-later.
