Zernio
Social API for AI agents and developers
98 followers
Social API for AI agents and developers
98 followers
Build social media features at scale. Zernio provides a single API for publishing, inbox, analytics, and account management across 14 platforms, so you can ship product instead of wasting time with platform APIs.
@paletmiki I discovered Late when I was building integrations for every social platform individually. Each one had different auth, different quirks, wasting weeks. Late let me stop doing that—and start actually growing my business.
Instead of managing 10+ API integrations, I had one. That freed up time to focus on what matters: creating content, scaling my brands across personal + company + AI agents.
Simple as that. Late became part of my infrastructure, and it just worked. No surprises, no dropped posts, reliable.
Congrats on the rebrand and the launch, Miquel. This is exactly what founders and developers need.
@ctala Thanks Cristian ! It means the world to us :)
@paletmiki Hey Miki! We're using Zernio to schedule across IG/TikTok/FB/YT for more than 30 of our clients. Love the product. Quick question: TikTok API strips newlines from captions. We currently use draft: true so our team can fix formatting in-app before publishing. Any plans to handle this server-side (e.g. auto-converting \n to Unicode separators)? Would be a huge QoL improvement.
@sempowa_hub Hey! Thanks for the kind words :)
We just shipped a fix for this. Turns out TikTok's API does preserve \n line breaks, we were stripping them on our end unnecessarily. Your captions hould now keep line breaks as written.
Can you give it a try and confirm it's working as expected on your end?
@paletmiki Hey Miki! Thanks for the quick fix 🙌
Tested it — single line breaks (\n) now work perfectly on TikTok, huge improvement!
One remaining thing: double line breaks (\n\n — empty lines between paragraphs) get collapsed into single line breaks on TikTok. So a caption like:
Shows up as:
Is this something you can preserve on your end, or is it a TikTok API limitation?
Also two more quick questions:
Custom cover image on TikTok — we upload a cover image for our reels. It works on IG/FB but TikTok only seems to support video_cover_timestamp_ms. Is there any way to pass a custom thumbnail image for TikTok videos?
Any way to check which privacy_level options are available for a specific TikTok creator account via API?
Thanks again, you guys are shipping fast! 🚀
@sempowa_hub Hey! Thanks for testing and the kind words 🙏
Double line breaks should be now fixed. Let me know if it's working on your end?
Custom TikTok thumbnails: just shipped this. You can now pass videoCoverImageUrl (or video_cover_image_url) in your tiktokSettings with a URL to a JPG, PNG, or WebP image. We stitch it into the video automatically so TikTok picks it up as the cover. It overrides videoCoverTimestampMs when set.
"tiktokSettings": {
"privacyLevel": "PUBLIC_TO_EVERYONE",
"videoCoverImageUrl": "https://cdn.example.com/my-thumbnail.jpg",
...
}
Privacy levels per creator:also live. New endpoint: GET /api/v1/accounts/{accountId}/tiktok/creator-info?mediaType=video
Returns the available privacyLevels for that creator, plus posting limits, interaction settings, and commercial content options. Docs are up on the TikTok platform page.
Let me know if anything doesn't work as expected!
Uxia
looks great! do you guys have data on how the reach of a post is impacted if it's published through API vs manually through the app? heard stories about programmatic posts getting cockblocked in X and other social media
@victor_perdiguer We only use official APIs so, as per official sources, there should be no difference to posting through the UI. That said, I think that posting via API sometimes takes people to posting worse content and more of it, which does it fact hurt reach.
LLM Gateway
How does reddit publishing work as it seems I can use my own account? is this correct? wondering how this works regarding reddit terms, don't wanna get my account blocked
@steebchen We use the official Reddit API! It's only a wrapper around their API. So no problems with terms
jared.so
What kind of products work best with this, is it mainly for ecommerce or does it handle lifestyle shots too? Congrats on the launch!
@mcarmonas Thanks! Basically everything. Our most common user is other SaaS :)
I love the simplicity, realiability – and the customer support! Been using Zernio under the previous name for several months now and I'm super impressed!
@nck Thank you so much Nick!
I’ve been using Zernio for a few months now, mostly as Late, and when I saw it pop up on Product Hunt today I had to jump in and leave a comment.
What has stood out the most for me is the pace of improvement. In a short time, they’ve shipped genuinely useful features like analytics and inbox tools that can actually make a difference when automating social media across channels.
I’d recommend it for most use cases, especially if you value flexibility. The API access makes it much more powerful than typical tools in this space and I've used over a dozen of them.
Overall, a really solid product that is clearly evolving in the right direction.
@hello Thanks so much Farooq! Appreciate it :)
Been using Late (now Zernio) for about a month. The thing that actually matters here isn't the UI, it's the API.
Most social media tools optimize for humans clicking buttons. But when you're building with AI agents, you need programmatic access. Clean endpoints and predictable responses. One API instead of wrestling with 14 different platform integrations.
Zernio really does it well. My agents post, pull analytics and manage scheduling without me touching a dashboard. The agentic use case is where this gets interesting.
Congrats on the rebrand @paletmiki! The product earned it.
@andrew_white_13 thanks Andrew ❤️