Features
Everything it takes to never go quiet.
Sydium learns your voice, writes and makes the content, publishes it to ten platforms, replies to the people who show up, and shows you what worked. Here is the whole surface, grouped by what it does for you.
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Create
Write and make it, in your actual voice.
Brand Voice AI
Learns how you write from your posts, your website, or uploaded documents - down to a bank of your real products, places, and numbers, so captions stay specific and never make things up.
How brand voice worksCaptions that fight AI-slop
Generates and refines captions for each platform, then runs a second editor pass that strips the cliches and the 'not X, but Y' tells - and learns from every edit you make.
Image Studio
Generate on-brand images from your palette, then edit them by chatting - swap a background, warm the light, remove an object - each message building on the last.
Video Studio
Generate video with Kling and Gemini, edit a clip by instruction, then trim, remove silences, burn in captions, and add a soundtrack - all on one timeline.
Muse
Three sharp content ideas every morning, grounded in what your audience actually searches - not a generic trend feed.
Voice notes
Talk an idea out; Sydium transcribes it and structures it into a ready-to-edit draft.
Publish
Post everywhere, at the right time, hands-free.
Ten platforms, one composer
Instagram, TikTok, YouTube, LinkedIn, X, Facebook, Pinterest, Bluesky, Threads, and Mastodon - written once and tailored to each network's formats, with a live preview of every one.
See the schedulerCalendar and queue
A visual calendar, an Instagram grid preview, best-time slots, recurring posts, and bulk reschedule.
AI Autopilot
Set a goal and it drafts, schedules, and publishes on its own - and pauses itself when engagement drops. Run it full-auto, batch-review a week at a time, or approve every post.
How Autopilot worksRepurpose and atomize
Turn one post into a version for every platform, or turn a whole blog article into 3 to 15 ready posts.
Engage
Reply fast, and turn comments into leads.
Unified inbox
Comments and DMs from eight networks in one feed, with one-click reply drafts written in your voice.
Comment-to-DM automations
Auto-DM anyone who comments a keyword on Instagram or Facebook, and reply in public too.
Leads
Every commenter becomes a scored lead with detected intent - a question, a buying signal, a complaint - so the warm ones surface on their own.
Giveaways
Draw a provably-fair winner from your post's comments, with a full audit trail.
Measure
See what worked, then do more of it.
Analytics
Performance across every connected platform, an engagement score, follower trends, and best-time-to-post insight.
Competitor tracking
Benchmark any public Instagram or YouTube account by handle, side by side with yours.
Reports and shares
CSV and PDF exports, scheduled email reports, and password-protected public share links.
Scale
Run it for clients, or from your own code.
Client workspaces and portal
A separate workspace per client, plus a client portal in your logo and colors where they approve posts, view engagement, and read reports.
Approvals and roles
Approval workflows with no-login review links, role-based permissions, and per-project sign-off.
Public API, CLI, and MCP
A REST API, a command-line tool, and an MCP server with OAuth 2.1 - drive publishing, scheduling, and analytics from Claude or your own code.
Read the developer docsThe sounds-like-you promise
If your first month doesn't sound like you, we retrain your voice free and refund the month.
No form, no call. Email us and it's done. You are the judge.
Your calendar shouldn't depend on your mood.
Start free for 14 days. Connect an account and Sydium drafts in your voice the same day.
Start your 14-day trial