Postiz

Category: Social/Community

Open-source scheduler with MCP on every plan.

Postiz is an open-source social scheduler covering the major networks with a content calendar, AI assistance, team features and an API. Because it is open source you can self-host it for nothing and keep all your data, which is the main reason technical teams choose it over the commercial alternatives. The hosted version is priced by channel count across four tiers. There is a first-party MCP server on every plan with thirteen tools, confirmed in the public repository, and self-hosters get it free as well. It has repositioned as an agentic scheduler with MCP, a CLI and API access included on all tiers rather than gated to the top.

Our verdict

The open-source option in a category where everything else is closed, and that is the whole argument: self-hosting means your social data and tokens stay on infrastructure you control, which no commercial scheduler can offer at any price. For a UK team with data residency requirements that is a genuine answer rather than a compromise. Including MCP, CLI and API on every tier rather than gating them to enterprise is refreshing. Two things to know. The MCP server is write-only, so it can schedule and post but cannot read or reply to comments, which limits what an agent can actually do for you. And the hosted company operates from Hong Kong and the US with no EU residency, so if data location matters you want the self-hosted route rather than the hosted one, which does require someone technical. They do publish an EU representative and a sub-processor list, which is more than several larger competitors manage.

Best for: Technical teams who want to self-host for data control, and anyone who wants API and MCP access without paying enterprise prices.

Pros

  • Open source, so you can self-host and keep all your data
  • MCP, CLI and API included on every tier rather than gated to enterprise
  • Thirteen MCP tools confirmed in the public repository
  • Self-hosters get MCP free as well
  • Publishes an EU representative and a sub-processor list
  • Cheaper than the commercial alternatives at every tier

Cons

  • The MCP server is write-only and cannot read or reply to comments
  • The hosted version runs from Hong Kong and the US with no EU residency
  • Self-hosting requires someone technical to run and maintain it
  • Fewer polish and support resources than the commercial tools
  • No GBP pricing

Pricing: From $23/mo billed yearly, or self-host free (Freemium)

Rating: 4/5