What Is Postiz? Social Media Scheduling, Connecting an AI Assistant via MCP, Pricing and Self-Hosting

When you manage several social media accounts, logging into each platform separately to post takes time and things get missed. Postiz brings your accounts (Postiz calls them channels) into one place: you write a post once, adapt it per platform and schedule it on a calendar. The new part is the AI side: thanks to MCP (the standard that connects an AI assistant to a service), you can have Claude or ChatGPT schedule posts from a plain sentence.

Who it's for: social media managers and agencies handling several brand or client accounts, people who want to hand content creation and scheduling to an AI assistant, and teams that want to keep their data on their own server.

The atlas also has Zernio and Upload-Post, which do the same job with an API and MCP focus; Postiz's difference is that it is open source: you can also run it on your own server.

An alternative with API and MCP, priced per account: Zernio guide. →

1. 1Sign up: Sign up at postiz.com and choose a plan (there's no free plan; new organizations are usually offered a 7-day trial). On a self-hosted install, the first person to sign up becomes the organization owner.
2. 2Connect a channel: In the calendar, "Add Channel" in the left menu; depending on the platform, you either go to the platform's own consent screen, enter an API key, or connect with the browser extension.
3. 3Write and adapt: Write the post; you can edit it separately for each platform's character and image limits.
4. 4Schedule: Pick a date and time; the post appears on the calendar.
5. 5Check: After publishing, track from the calendar that the post went out and how it performs.

Postiz's MCP server gives the assistant 13 tools: list connected accounts, learn platform rules, schedule a post, save a draft or publish immediately, list scheduled posts, generate images and video, and extract clips from video. First get your API key in Postiz under Settings› then Developers; the same page also generates a ready configuration block for the client you choose.

MCP can't currently read or reply to comments (Postiz FAQ); comment replies are done in the Postiz interface. If you don't use Postiz's own AI features, MCP doesn't need an OpenAI key: your assistant provides the model.

According to the docs, 34 platforms are supported; the table in the docs has 35 rows, with Instagram and TikTok on separate rows for their two connection types:

!Twitch, Kick, VK, Nostr, Lemmy, Medium, Dev.to, Hashnode, WordPress, ListMonk and Moltbook currently connect only through the API (and the CLI and MCP that use it); the interface has no connect buttons for them (platform documentation).

On X the character limit depends on the account: normally 280, 4,000 for verified accounts, 100,000 in long-article mode.

Can I use it without code? Yes, the cloud version (platform.postiz.com) needs no installation. Self-hosting is for someone who knows how to run a server: the software is free, but server costs, updates and backups are on you.

2. Set the variables: Postiz is configured entirely through environment variables. The docs give three ways: in docker-compose.yml, in a postiz.env file mounted into the Postiz container, or (not recommended) in a .env file next to it. The list is on the "Configuration Reference" page.

Once running, the interface opens at http://localhost:4007 and the workflow monitoring screen (Temporal) at http://localhost:8080. The bundle brings Postiz, PostgreSQL, Redis and Temporal together.

!According to Postiz's pricing page, app approvals for Facebook, Instagram, Threads and YouTube usually take more than a month and require several rounds of fixes. Bluesky (with your own credentials in the interface) and Skool (with the browser extension) don't require a developer app.

Source: docs.postiz.com installation and system requirements pages, GitHub license information. The license summary is not legal advice; read the AGPL-3.0 text.

• Billed yearly: $23 / $31 / $39 / $79 per month (about 20% off).
• There is no free plan in the cloud. Every plan has a 7-day trial; starting it requires a card, which gets a small verification charge that is released right away. The trial is once per organization.
• Video clipping and some costly video generators are disabled during the trial.
• Refunds (Terms of Service): if your last payment was within 120 days, at most one month's fee per account; no refunds on yearly plans. The refund page on the docs site says the subscription is canceled along with the refund.
• Self-hosted, the software is free; no plan limits.

Prices in US dollars; postiz.com/pricing, October 29, 2026. No Turkish lira price is published; VAT and card payment from Turkey are not clear in the official sources.

Official pricing page last checked on November 3, 2026.

!On the MCP route where the key is embedded in the URL (/mcp/<key>), the URL works like a password: anyone who knows it can post to your accounts; don't share the configuration file.