Ship Your LinkedIn Integration In Minutes, Not Months

Stop wrestling with LinkedIn's Marketing API. Zernio handles OAuth, rate limits, media hosting, and API changes - so you can focus on building your product.

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No credit card required • 20 free posts/month • View LinkedIn API Reference →

POST /v1/posts
{
  "platforms": ["linkedin"],
  "accountId": "acc_abc123",
  "content": "Hello from Zernio!",
  "scheduledFor": "2025-01-15T19:00:00Z"
}

Why Zernio vs LinkedIn Marketing API?

LinkedIn Marketing API

  • ✗Complex OAuth with LinkedIn partner program approval
  • ✗Strict rate limits with daily quota management
  • ✗Media must be uploaded in multiple steps
  • ✗Frequent API changes require constant updates
  • ✗Build separate integrations per platform

Zernio API

  • ✓Simple API key - start in 30 seconds
  • ✓Automatic retries & queue management
  • ✓Upload directly - we handle LinkedIn's format
  • ✓Zero maintenance forever
  • ✓One API for 15 platforms

Save 4-6 weeks of development. Ship LinkedIn API integration today, not next month.

💼

Personal Profiles & Company Pages Supported

Post to your personal LinkedIn profile or any company page you admin. Perfect for thought leadership, B2B marketing, and building your professional brand.

Company page admins can connect multiple pages under one Zernio account for streamlined management.

Playground

Connect your LinkedIn account and send a real post through the API. No signup form, no credit card. Just click and ship.

Connect your LinkedIn account to try the API live. No signup needed.

Learn More

LinkedIn Posting API Guide

Complete guide to posting on LinkedIn via API. OAuth 2.0 setup, permissions, and code examples.

Post to LinkedIn via API

Step-by-step tutorial for posting to LinkedIn profiles and company pages programmatically.

Schedule LinkedIn Posts

Learn how to schedule LinkedIn posts via API for optimal engagement timing.

Content Types

📝Text Posts📸Photos🎥Videos📄Documents📰Link Previews

How It Works

  1. 1.
    Connect Your Account
    Link your LinkedIn profile or company page through our dashboard. One-click OAuth - we handle all the LinkedIn permissions.
  2. 2.
    Build Your Integration
    Use our simple REST API to schedule posts with text, images, videos, or documents. Same pattern works for all 15 platforms.
  3. 3.
    We Handle the Rest
    Zernio publishes at your scheduled time, retries on failures, and notifies you via webhooks. You never touch LinkedIn's API directly.

Features

Ship Faster

Go from zero to posting in under 30 seconds. No LinkedIn partner program approval - just get your API key and start building.

Official API, Zero Hassle

We use LinkedIn's official Marketing API under the hood. You get full compliance and reliability without the integration pain.

We Handle the Hard Parts

Rate limits, token refresh, media processing, error handling - all managed for you. Focus on your product, not infrastructure.

Also available: LinkedIn Ads
Run paid ads on LinkedIn programmatically via the same API.
LinkedIn Ads →

Code Example

Schedule a LinkedIn Post
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({
    platforms: [{
      platform: 'linkedin',
      accountId: 'your-linkedin-account-id'
    }],
    content: 'Publishing LinkedIn thought leadership content via Zernio!',
    mediaItems: [{
      type: 'image',
      url: 'https://your-image-url.jpg'
    }],
    scheduledFor: '2024-01-15T14:00:00Z'
  })
});

const result = await response.json();
console.log('LinkedIn scheduled:', result.id);
View Complete API Documentation →
LinkedIn API Error Reference
Comprehensive guide to LinkedIn API error codes. Find solutions and troubleshoot common integration issues.
View Error Reference →

Frequently Asked Questions

Do I need LinkedIn Partner Program approval?
└Not with Zernio. We handle all LinkedIn platform partnerships and approvals on your behalf. You get a simple API key and start posting immediately.
Can I post to both personal profiles and company pages?
└Yes. Connect personal LinkedIn profiles or any Company Page you admin. Both work through the same API endpoint.
Does the LinkedIn API support document posts?
└Yes. Zernio supports LinkedIn document/PDF posts (carousel-style) alongside text, photos, videos, and link previews.
Does Zernio support LinkedIn analytics?
└Yes. The Analytics API add-on provides LinkedIn post performance data: impressions, clicks, engagement, and reactions - unified with analytics from all other platforms.
How much does the LinkedIn API cost?
└LinkedIn's Marketing API is free after Partner Program approval, but integration typically requires 4-8 weeks of engineering. Zernio starts at $19/mo with a free tier.

One API, 15 Platforms

Twitter/XInstagramTikTokWhatsAppFacebookYouTubeThreadsRedditPinterestBlueskyTelegramSnapchatGoogle BusinessDiscordMeta AdsGoogle AdsLinkedIn AdsTikTok AdsPinterest AdsX Ads

Ready to Ship Your LinkedIn Integration?

Join 10,000+ developers who chose Zernio over building with LinkedIn's API directly. Same reliability, 10x less code.

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