Zernio

Zernio is a unified social media API platform that enables developers and AI agents to publish, schedule, and manage content across 14+ social networks through a single integration. Rather than building and maintaining separate connections to each platform's API, developers make one API call and Zernio handles authentication, media formatting, rate limits, and platform-specific requirements.

The Problem It Solves

Each social media platform — Instagram, TikTok, LinkedIn, X, YouTube, and others — has its own OAuth flow, media format requirements, content rules, rate limits, and breaking changes. Building custom integrations across all major platforms typically takes 8–12 months of engineering time and demands ongoing maintenance as platforms update their APIs. Zernio abstracts this complexity behind a single REST API, reducing integration time to under an hour.

Key Features

• Unified API for 14+ platforms: Instagram Business & Creator, TikTok Business, LinkedIn (Company & Personal), YouTube, Twitter/X, Facebook, Pinterest, Google My Business, Reddit, Threads, Bluesky, and WhatsApp Business
• Content publishing and scheduling: Post, schedule, and manage content across all supported platforms from a single endpoint
• Comments and DMs automation: Programmatic management of engagement across channels
• Analytics tracking: Cross-platform performance data accessible through one API
• Ads management: Campaign management via API across supported networks
• Media upload and management: Automatic formatting and handling of media assets per platform requirements
• Webhook notifications: Real-time event updates from all connected platforms
• Rate limit management and automatic token refresh: Built-in handling of platform restrictions and authentication maintenance

Who It's For

Zernio serves three primary audiences: SaaS companies embedding social features into their own products, marketing agencies managing client accounts at scale, and AI agent builders who need programmatic social posting. The product is fully white-label, meaning end users never see Zernio branding.

Developer Experience

The platform provides comprehensive API documentation, developer-friendly SDKs, and usage-based pricing. Both a free version and a free trial are available, allowing teams to evaluate the platform before scaling usage.