How to automate TikTok slideshows for your app (without n8n or an AI agent)
The DIY ways to automate TikTok slideshows (Postiz with an AI agent, Blotato with n8n or Make) and what each one takes, then a simpler route for app founders, and what stays manual either way.
· Updated · 7 min read · by Reelazy
If you run a small app, you have probably seen the tutorials: "I automated my TikTok slideshows with an AI agent", "n8n workflow posts TikTok carousels for you". They are real, and some of them are very good. They are also built by people who enjoy building pipelines.
This page looks at the two most detailed public guides, lists what the DIY route actually takes, and then shows a shorter path for founders who want users from TikTok more than a new side project. No view promises in either case: what gets watched depends on the posts.
Route 1: Postiz with an AI agent
Postiz's guide to automating TikTok slideshows with AI agents (May 14, 2026) is the most complete write-up we have seen. What it uses:
- An AI agent (Hermes Agent) running on a VPS, with an AI model provider for the writing.
- Postiz as the scheduler that talks to TikTok, with its API key (Postiz Cloud is $29 a month; the author tried self-hosting and spent about five hours a week debugging it).
- A Pinterest scraper with a residential proxy pool and image storage, to collect photos for the slides.
- A Python compositor that draws text on the photos at 1080 × 1920.
- Drafts to the TikTok inbox, then a phone that publishes them. The author automates real iPhones for this step; most people would tap Post by hand.
- A 30-day warm-up for new accounts, with the rule "NEVER direct-publish on a new account."
It is honest about the work, and the warm-up advice matches what founders who run many accounts report. Two things to weigh before copying it: the photos are scraped from Pinterest, so you don't hold a license for them, and 1080 × 1920 slides lose their top and bottom in TikTok's photo view (TikTok photo mode is 3:4).
Route 2: Blotato with n8n or Make
Blotato's guide to automating TikTok slideshows (May 11, 2026, updated August 12, 2026, by Blotato's founder) builds the same thing as a workflow in Make or n8n:
- OpenAI writes the scene prompts, the caption and the title on the image.
- An image model (Google's Nano Banana, through Replicate) makes every slide from one reference photo, so the subject stays the same.
- Blotato posts to TikTok. Its API is a paid feature: creating an API key starts the Starter plan at $29 a month.
- Posting is direct with TikTok's recommended music, or as a draft to your inbox if you want to pick the sound yourself.
The guide estimates a few cents of AI cost per slideshow, on top of the Blotato and Make or n8n subscriptions. Blotato's n8n help page adds that you can use any public image URL instead of AI images.
What the DIY route takes
Both guides end up with the same parts. Here is the list, so you can price it in time as well as money.
| Part | What you need | What to watch |
|---|---|---|
| Accounts and keys | An AI provider, an image model or photo source, a scheduler with a TikTok connection, sometimes a VPS | Several bills and several dashboards |
| Images | Generated per slide, scraped, or your own | Whether you may use them; AI images can need TikTok's AI-generated label |
| Hooks and slides | Prompts you write, test and keep rewriting | Generic AI text is easy to spot (why AI slides sound fake) |
| Layout | A compositor or template that places text | Slide size and where TikTok covers the picture |
| Posting | A tool that uses TikTok's Content Posting API | TikTok's own limits: about 15 direct posts a day per account, at most 5 drafts waiting in 24 hours (sharing guidelines) |
| Finishing | A person (or a phone farm) who opens drafts, adds a sound and posts | Drafts pile up if nobody does |
| Upkeep | Fixing the workflow when an API, a model or a node changes | Usually the biggest cost |
The DIY route is the right call when you like building it, when you need something no product does, or when you already run n8n for other work. If that is you, both guides above are good places to start.
The Reelazy way, in three steps
If you would rather spend that time on your app, the same result takes three steps.
- Find a TikTok slideshow that works. Save it with the Chrome extension while you scroll, or upload screenshots. Say @yourapp, a budgeting app, finds a post called "5 habits that fixed my mornings" that people clearly finished.
- Reelazy copies its format. It reads the structure, the hook pattern and the look, and never takes the words or the photos. That post becomes a listicle format: a hook with a number, one tip per slide, the product as the last tip.
- You get a month of posts like it, for your product. The AI writes them ("5 money habits I wish I knew at 22", and so on), puts them on photos from Reelazy's licensed library or your own, schedules them at your times, and posts them through TikTok's official API: to your TikTok inbox, or straight to your profile. You approve them first, all at once with Approve all.
A batch is a month of posts in one go, up to 30 at a time. Pro starts at $19 for 100 posts a month, with chat messages and copied formats included. Slides are 1080 × 1440 so nothing is cropped, and text stays out of the parts TikTok covers. If you want to check a slide you made elsewhere, the TikTok photo crop checker shows what the app will display.
TikTok slideshows for budgeting apps shows what a month looks like for an app like @yourapp.
What stays manual
No tool takes these off your plate, and you shouldn't want it to.
- Approving the posts. You read them first. With Approve all, a month takes one sitting.
- Adding a sound, if you post to your inbox. TikTok's API can't choose a specific sound (why). Each post lands in your TikTok inbox at its time; you add a sound and tap Post. For a new account this is the safer way to start (account setup for apps).
- Choosing who can view, on direct posts. TikTok requires you to pick it on every approval, with no default.
- Replying to comments. Comments are where viewers ask about your app.
- Deciding what to make next. Look at which posts people finish and save, then copy more of what works.
DIY or Reelazy: how to choose
| You are... | Pick |
|---|---|
| A developer who enjoys workflows and wants full control | DIY with Postiz or Blotato |
| Already running n8n or Make for other work | Blotato with n8n or Make |
| A founder who wants a month of on-brand posts this week | Reelazy |
| Posting videos as well as slideshows | A general scheduler (see our comparisons) |
If you are weighing Reelazy against Postiz in particular, see how Reelazy compares with Postiz. To try the three steps on your own app, start here.
Frequently asked questions
Can I automate TikTok slideshows completely?
You can automate the writing, the images, the scheduling and the posting. TikTok still requires you to choose who can view each direct post, and a specific sound can only be added in the app. Someone also has to read the posts before they go out.
Do I need n8n or an AI agent to automate TikTok slideshows?
No. They are one way to build it yourself. A slideshow tool that copies a format and posts through TikTok's official API does the same job without a workflow to maintain.
Where do the photos come from?
In the DIY guides, from an image model or from scraping Pinterest. In Reelazy, from its licensed photo library or from photos you upload.
Will automated slideshows get views?
Nobody can promise that. Views depend on the hook and on whether people swipe to the end, so start from a format that already works for someone and judge it by how many viewers finish the post.
Is posting through an API against TikTok's rules?
No. TikTok's Content Posting API is the official way for apps to post for you. Tools that use it must follow TikTok's sharing guidelines, which is why they ask you to choose privacy and approve each post.