Postiz

Agentic open-source social media scheduler: AI agents plan, generate, and post to 30+ networks from one calendar. Self-hostable Buffer/Hootsuite alternative.

Open source alternative to:

Buffer

Hootsuite

Overview Releases

Postiz is an open-source, agentic social media scheduling platform built for creators, businesses, and agencies who manage multiple accounts across networks. You — or an AI agent such as Claude, ChatGPT, Claude Code, Codex, or OpenClaw — plan, generate, and schedule posts to 30+ networks including X, Instagram, TikTok, LinkedIn, YouTube, Threads, Facebook, Bluesky, Pinterest, Reddit, Mastodon, and Telegram, all from a single visual calendar. It replaces closed tools like Buffer or Hootsuite and is self-hostable via Docker under the AGPL-3.0 license.

Postiz is designed to be driven by AI agents: a hosted MCP server with OAuth sign-in, a Postiz CLI and installable skill (npx skills add gitroomhq/postiz-agent), and official connectors for Claude, ChatGPT, Cursor, and Grok let agents draft posts, generate images and short videos, and schedule content while a human reviews everything in the calendar. A built-in AI agent can also draft copy, generate images, produce short clips, and turn long videos into TikTok/Reels/Shorts-ready cuts. Beyond AI, Postiz includes evergreen post recycling, RSS auto-posting, auto-engagement actions triggered by milestones, per-channel analytics from official network APIs, customer groups for multi-brand and agency work, unlimited team members on higher plans, and a public REST API with webhooks plus n8n, Make.com, and Zapier integrations.

With 37k+ stars on GitHub and active development toward Postiz Cloud plus the self-hosted edition, Postiz is a credible open-source alternative in a market long dominated by closed SaaS. Cloud plans start at $29/month with a 7-day trial for $0, while self-hosting costs nothing beyond your own server and the developer-app approvals you set up on each network.

Frequently Asked Questions

What is Postiz?

Postiz is an open-source, agentic social media scheduling platform. You — or an AI agent such as Claude, ChatGPT, Claude Code, Codex, or OpenClaw — plan, generate, and schedule posts to 30+ social networks, and everything lands in one visual calendar where you review and approve it before publishing. It's a self-hostable alternative to Buffer and Hootsuite.

Can AI agents like Claude or ChatGPT post through Postiz?

Yes. Postiz is built to be driven by AI agents via a hosted MCP server with OAuth sign-in, the Postiz CLI and installable skill (npx skills add gitroomhq/postiz-agent), and official connectors for Claude, ChatGPT, Cursor, and Grok. Agents can draft posts, generate images and videos, and schedule or publish while you approve — agent access is included on every plan.

What social media channels does Postiz support?

Postiz supports 30+ channels from one calendar: X, LinkedIn, Facebook Pages, Instagram, Threads, TikTok, YouTube, Pinterest, Reddit, Bluesky, Mastodon, Lemmy, Farcaster, Nostr, Telegram, Discord, Slack, VK, Google My Business, Dribbble, Kick, Twitch, Whop, Skool, Medium, Dev.to, Hashnode, WordPress, and Listmonk. Each connected account counts as one channel toward your plan limit.

Is Postiz really open source?

Yes. Postiz is published on GitHub under the AGPL-3.0 license and can be self-hosted with Docker at no cost — you handle updates, backups, and developer-app approvals on each social network yourself. Postiz Cloud is the managed hosted version of the same product, with plans from $29/month and a 7-day trial for $0.

Does Postiz have a public API?

Yes. Every plan includes a public REST API for creating posts, uploading media, and managing channels, plus webhooks that fire on post events — handy for connecting Postiz to n8n, a CMS, or your own dashboard.

Can Postiz auto-repeat evergreen posts?

Yes. Any post can be set to repeat on a schedule (e.g. every 30 days) so your best content keeps going out without manual copy-pasting. Every plan can also auto-post from an RSS feed, and auto actions can like, comment, or re-post when a post hits a milestone like 100 likes.

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