Post Sider MCP Server

Open-source social media scheduling for 30+ platforms. Plan, compose, and publish from one calendar, with a public API and SDK for automation and an optional AI assist for checking and rewriting captions. It runs locally over stdio via the published package.

People who work with agpl v3, docker and nestjs and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-09-27 · ★ 7 · #70 OF 165 MAINTAINED CLOUD INFRASTRUCTURE · VERIFIED 2026-09-30

AGPL-3.0 · TypeScript servers · how we verify → /methodology

01 · Install Post Sider

before you install - you'll need

Set STORAGE_PROVIDER, CLOUDFLARE_ACCOUNT_ID, CLOUDFLARE_ACCESS_KEY, CLOUDFLARE_SECRET_ACCESS_KEY, CLOUDFLARE_BUCKETNAME, CLOUDFLARE_BUCKET_URL before connecting.

Claude Code

claude mcp add lumizone-postsider -- npx -y @postsider/mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "lumizone-postsider": {
      "command": "npx",
      "args": [
        "-y",
        "@postsider/mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

repo age created 2026-08-15 - young repo, little track record yet

license AGPL-3.0 - declared in the repository

npm package @postsider/mcp - the @postsider scope differs from the repo owner (lumizone); confirm it's the project's official package

registry namespace io.github.lumizone is GitHub-verified and matches the repo owner

03 · What Post Sider can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v1.2.0 · 2026-09-09

bump subtitle from 4.2.2-alpha.0 to 4.2.2 · bump eslint-plugin-import from 2.27.5 to 2.32.0 · bump mime and @types/mime · bump uuid from 11.1.1 to 14.0.2 · bump file-type from 17.1.6 to 22.0.2

v1.1.0 · 2026-08-29

What's new · This release ships the production PostSider codebase as the open-source release: a single AGPL-3.0 codebase that runs as managed hosting or fully self-hosted with Docker. · Highlights · Channel lifecycle…

v1.0.1 · 2026-08-15

Self-hosting hardening release. · Security · Refuses to start with missing or template values for critical application, database and storage secrets. · Applies registration restrictions consistently to Generic OAuth.…

04 · Who maintains Post Sider

PostSider is maintained by lumizone. It's the only MCP server we track from this author; the repo dates to Aug 2026.

05 · Facts

repository: github.com/lumizone/postsider
website: https://postsider.com/
category: cloud infrastructure - ranked #70 of 165 actively-maintained cloud infrastructure servers as of 2026-09-30.
release cadence: 4 releases in the last 90 days (latest 2026-09-09)
registry: io.github.lumizone/postsider (active, first published 2026-09-25)
packages: npm:@postsider/mcp

06 · Post Sider FAQ

What is Post Sider?

Is Post Sider still maintained?

Yes - as of 2026-09-30, its last commit was 2026-09-27 and it shipped 4 releases in the last 90 days. We re-verify nightly.

How do I install Post Sider?

Run `npx -y @postsider/mcp`. The README documents 6 environment variables (STORAGE_PROVIDER, CLOUDFLARE_ACCOUNT_ID, CLOUDFLARE_ACCESS_KEY…) to set first. Set STORAGE_PROVIDER, CLOUDFLARE_ACCOUNT_ID, CLOUDFLARE_ACCESS_KEY, CLOUDFLARE_SECRET_ACCESS_KEY, CLOUDFLARE_BUCKETNAME, CLOUDFLARE_BUCKET_URL before connecting. You can also paste the ready-made client config above.

Does Post Sider run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Post Sider

Alternatives to Post Sider

Maintained cloud infrastructure servers if Post Sider isn't the fit.

Pairs well with

Servers that cover what Post Sider doesn't - only shown when the pairing reason fits the companion.

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