Social Media API for Developers

How It Works

1. 1.
   Get Your API Key

   Sign up free, generate a key from the dashboard. 20 posts/month included.
2. 2.
   Connect Social Accounts

   Link accounts via OAuth. Each gets a unique ID for API calls.
3. 3.
   Start Posting

   One API call to publish across all platforms. Ship your first post in under 15 minutes.

Why Developers Choose Zernio

Code Examples

curl -X POST https://zernio.com/api/v1/posts \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "content": "Hello from Zernio API!",
    "scheduledFor": "2026-03-15T10:00:00Z",
    "timezone": "America/New_York",
    "platforms": [
      {"platform": "twitter", "accountId": "acc_123"},
      {"platform": "linkedin", "accountId": "acc_456"},
      {"platform": "instagram", "accountId": "acc_789"}
    ]
  }'

import requests

response = requests.post(
    "https://zernio.com/api/v1/posts",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    json={
        "content": "Automated post from Python",
        "scheduledFor": "2026-03-15T10:00:00Z",
        "platforms": [
            {"platform": "twitter", "accountId": "acc_123"},
            {"platform": "linkedin", "accountId": "acc_456"}
        ]
    }
)
print(response.json())

const response = await fetch("https://zernio.com/api/v1/posts", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_API_KEY",
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    content: "Posted from Node.js!",
    scheduledFor: "2026-03-15T10:00:00Z",
    platforms: [
      { platform: "twitter", accountId: "acc_123" },
      { platform: "instagram", accountId: "acc_789" }
    ]
  })
});
console.log(await response.json());

curl -X GET https://zernio.com/api/v1/analytics/post_abc \
  -H "Authorization: Bearer YOUR_API_KEY"

# Response:
# {
#   "postId": "post_abc",
#   "platforms": {
#     "twitter": { "likes": 42, "retweets": 12, "impressions": 1580 },
#     "linkedin": { "likes": 67, "comments": 8, "impressions": 3200 }
#   }
# }

Supported Platforms

Post to all 14 major platforms from one API.

See it in action

Schedule and manage posts across all platforms.

Connect all your social accounts in one place.

Simple dashboard with powerful API access.

Frequently Asked Questions

How much does it cost?

└Free plan: 20 posts/month with full API access. Paid plans start at $19/month for 120 posts. No credit card required for free tier.

How are rate limits handled?

└Zernio manages platform rate limits automatically with intelligent retry logic and exponential backoff. You never need to handle throttling.

How does authentication work?

└Simple Bearer token auth with API keys. Connect social accounts once via OAuth, then reference them by ID in all API calls.

What media types are supported?

└Images (JPEG, PNG, GIF, WebP), videos (MP4, MOV), carousels, Stories, and Reels. Upload directly or provide a public URL.

Can I use Zernio with n8n or Make?

└Yes. Official n8n community node with pre-built actions. For Make and Zapier, use webhook endpoints to trigger workflows.

What languages are supported?

└Any language that makes HTTP requests. Docs include Python, Node.js, and cURL examples.

How does Zernio compare to Ayrshare?

└Zernio supports 14 platforms, starts at $19/month (vs $60), and uses simpler API key auth instead of complex OAuth.

Can I build white-label solutions?

└Yes. Unlimited accounts, API-managed, your end users never see the Zernio brand.

What is the uptime SLA?

└99.7% with automatic retries and intelligent queue management. Posts are retried with exponential backoff if a platform is down.

Does Zernio support first comments?

└Yes, on Instagram (feed + Reels), Facebook, LinkedIn, and YouTube.

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