The social media API for developers and AI agents.
Ship social features in minutes instead of months. One unified social media API to post, schedule, promote, and engage across 15 platforms.
No credit card required
const response = await fetch("https://zernio.com/api/v1/posts", {
method: "POST",
headers: { "Authorization": `Bearer ${ZERNIO_API_KEY}` },
body: JSON.stringify({
text: "New feature drop!",
platforms: ["twitter", "instagram", "linkedin"],
mediaUrls: ["https://example.com/demo.mp4"],
scheduledFor: "2025-01-15T09:00:00Z"
})
});
Trusted by builders at
Thanks for Zernio - I have just discovered it, but I love it already!
Founder, Factology.Systems
I use Zernio for my SaaS purplepalm.ai. Integration was incredibly easy - had everything up and running in less than an hour. The API is super straightforward.
Founder, purplepalm.ai
I spent a long time looking for a simple solution for integration into the self-hosted version of n8n. Zernio was just perfect! I highly recommend it to everyone.
Developer
This concept to have an API first social media scheduler is just phenomenal! The amount of time saved, the automation capabilities is unlike anything else.
Social Media Manager
Easiest set-up ever, great reliability, saves me hours per week. I love how you can customize the message for each platform starting from the same content.
Content Creator
Zernio makes programmatic multi-platform social posting as simple as I've ever seen it. The API is straightforward, well-documented, and simple. It just works.
Developer
Thanks for Zernio - I have just discovered it, but I love it already!
Founder, Factology.Systems
This concept to have an API first social media scheduler is just phenomenal! The amount of time saved, the automation capabilities is unlike anything else.
Social Media Manager
I use Zernio for my SaaS purplepalm.ai. Integration was incredibly easy - had everything up and running in less than an hour. The API is super straightforward.
Founder, purplepalm.ai
Easiest set-up ever, great reliability, saves me hours per week. I love how you can customize the message for each platform starting from the same content.
Content Creator
I spent a long time looking for a simple solution for integration into the self-hosted version of n8n. Zernio was just perfect! I highly recommend it to everyone.
Developer
Zernio makes programmatic multi-platform social posting as simple as I've ever seen it. The API is straightforward, well-documented, and simple. It just works.
Developer
How It Works
Go from signup to your first post across multiple social media platforms in under 5 minutes.
- 1.Get your API key.Sign up and grab your key. Takes 30 seconds.
- 2.Connect accounts.Link social accounts via OAuth. No developer apps needed.
- 3.Launch.You just added social media to your stack.
What You Can Do
One OAuth flow for every platform. No dev apps needed.
One call, 15 platforms. Text, image, video, or carousel.
Likes, reach, impressions, clicks, views. Unified.
Boost any post to a paid ad on 6 ad networks.
Posts published or failed? Get pinged. No polling.
DMs, comments, reviews. One inbox. Reply via API.
Frequently Asked Questions
- How fast can I integrate Zernio compared to building custom integrations?
- └Custom integrations take 8-12 months. Zernio social media API takes under an hour.
- Do I need to create developer apps for each platform?
- └No. We handle all developer apps, approvals, and quota limits.
- How reliable is the scheduling?
- └We auto-transform content for each platform's requirements. Posts go out on time, every time.
- Is Zernio white-label friendly?
- └Yes. Your users never see Zernio branding.
- Will posting through Zernio get my accounts banned or reduce reach?
- └No. We only use official platform APIs, so your posts are treated exactly like native posts.
- Can Zernio handle thousands of client accounts?
- └Yes. Scales to unlimited accounts, no changes needed.
- Can AI agents use Zernio to post on social media?
- └Yes. Zernio ships an MCP server with 280+ tools. Connect it to Claude Desktop, Cursor, or any MCP-compatible client and your agent can post, schedule, read analytics, and manage DMs via natural language.
- Which social media platforms does Zernio support?
- └15 platforms: Instagram, TikTok, X/Twitter, Facebook, LinkedIn, YouTube, WhatsApp, Threads, Pinterest, Reddit, Bluesky, Telegram, Google Business, Snapchat, and Discord. With Ads API support for 7 platforms.
Still have questions?
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