Socializer
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Schedule & publish to Mastodon with Socializer

Connect Mastodon, compose once and adapt to its native format, then approve, schedule, and publish toots & threads — from the dashboard, the CLI, the REST API, or an MCP tool.

Get started free How connecting works

Native Mastodon formatting

Assistive AI reshapes your source into Mastodon's native form, enforcing its length and media constraints automatically.

Approval-gated publishing

Nothing reaches your Mastodon account until a human approves the draft. Every write is recorded in an immutable audit log.

API · CLI · MCP

Drive Mastodon programmatically with the same verbs as every other network — no per-channel special-casing.

What Mastodon supports

  • Toots up to your instance's limit (typically 500 chars)
  • Media attachments with alt text and content warnings
  • Works with any instance — point it at your home server

Connect in three steps

  1. 1Start the connect flow and enter your Mastodon handle and app password.
  2. 2Socializer stores the credential envelope-encrypted (AES-256-GCM) — never in plaintext.
  3. 3Compose, approve, and schedule. Every publish to Mastodon is recorded in the audit log.
Connecting accounts docs

Publish to Mastodon from your shell

socializer · CLI
$ socializer auth login mastodon
$ socializer compose --text "gm" --networks mastodon
$ socializer approve <post-id>
$ socializer schedule <post-id> --at "2026-07-01T09:00:00Z"

Also publishes to

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