Reels, stories, and DMs in one API
Instagram
Zernio offers one API to publish, message, advertise, and talk to your customers across 16 channels
Using an AI agent? Copy a setup prompt and it connects over MCP.
One integration covers social, blogs, messaging, voice, and ads. Platform changes, token rotations, and rate limits are ours to absorb.

POST /v1/posts
Launch day!
Published August 12, 2026 at 11:21
Publish and manage articles onWordPress
Shopifywith the Blogs API.
“Zernio is great.”
Guillermo Rauch
CEO, Vercel
Meta, Google, LinkedIn, TikTok, Pinterest, X, and OpenAI Ads. One set of endpoints, one shape coming back.
POST /v1/ads/create
const { data: ad } = await zernio.adcampaigns.createStandaloneAd({body: {accountId: 'acc_meta',adAccountId: 'act_1234567890',name: 'Summer sale',goal: 'conversions',promotedObject: { pixelId, customEventType: 'PURCHASE' },budgetAmount: 50,budgetType: 'daily',headline: 'Offline maps for every trail',body: 'Download once, hike anywhere.',callToAction: 'LEARN_MORE',linkUrl: 'https://trailkit.app/pro',imageUrl: creativeUrl,countries: ['US'],},});
One unified API for WhatsApp, iMessage, SMS, and calls, with one inbox and one bill.

Your order #4821 has shipped 📦
Track it: acme.co/t/4821
Yes! You can change the shipping address.
iMessage · Today 09:41
Hi Priya! Your oat latte is ready
Grab it at the counter, it's on us today
Read 09:41
No way, thank you!! On my way
See you in a bit ☕
Don't miss out!
Hi Marc, for the next 24 hours only, all winter jackets are 50% off.
🛒 Shop the collection: zernio.shop/sale
The North Store
You
Don't miss out!
Hi Marc, for the next 24 hours only, all winter jackets are 50% off...
Oh nice, been waiting for these 👀
12.00Search, buy, and verify phone numbers in 55 countries via Zernio API.
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Pick where your number is based.
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“We're now at the level where we're thinking, this is actually pretty good to have in our platform. But as soon as clients ask for more, I know with Zernio we can add those things quickly.”

Run 2,000+ connected accounts across your workspaces without losing track of who did what. Custom pricing and a direct line to engineering.
Write it yourself with the SDKs, hand it to an agent over MCP, or run it from a shell.
Eight SDKs across 16+ platforms, plus the raw REST API.
import Zernio from '@zernio/node';const zernio = new Zernio(); // reads ZERNIO_API_KEYconst { data: post } = await zernio.posts.createPost({body: {content: 'Hello world from Zernio!',platforms: [{ platform: 'twitter', accountId: 'acc_xxx' },{ platform: 'linkedin', accountId: 'acc_yyy' },{ platform: 'instagram', accountId: 'acc_zzz' },],publishNow: true,},});
I integrated Zernio's API and MCP into my Claude Copilot and Claude Code setup, and it filled a gap I'd been working around for a while.
We're integrating Zernio into our coaching app's WhatsApp inbox and love how clean the SDK is. Thank you for that.
We'd been using the HighLevel API for social posting, every post stuck in draft, a lot of hassle. Zernio has been a breeze to work with.
It works flawlessly now. Superb, as always. You and the team rock, keep up the amazing work.
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.
I love the speed and quality here, the API is awesome. I've never seen anyone ship integrations this fast.
Zernio makes programmatic multi-platform posting as simple as I've ever seen it. The API is straightforward, well-documented, and it just works.
I'm building captureflow.ai on Zernio and I love the platform. Super happy to be using you guys.
I spent a long time looking for a simple way to integrate a self-hosted stack. Zernio was just perfect, and I highly recommend it.
No credit card, no sales call. Connect an account, publish, and see the webhook come back in minutes.
