Zernio

What is Zernio?

Zernio is a unified API platform that lets developers and AI agents publish content, run ads, and manage communications across social networks, messaging apps, and email services. It provides SDKs in eight languages, an MCP server for AI coding tools, and a CLI. Access begins with a free tier requiring no credit card.

What are the features of Zernio?

• Unified social publishing

  Post, schedule, reply to comments and DMs, and retrieve analytics across 16 networks including Instagram, TikTok, X, LinkedIn, YouTube, Reddit, and Threads via one API.
• Advertising management

  Create campaigns, adjust budgets, pause or resume ads, and read spend metrics across nine ad platforms such as Meta, Google, LinkedIn, and TikTok Ads.
• Communication channels

  Send and receive messages over WhatsApp, SMS, MMS, iMessage, voice calls, Gmail, and Outlook through a single inbox interface.
• Phone number provisioning

  Search, buy, and verify phone numbers in 55 countries for calls, SMS, and WhatsApp via the API.
• Developer access methods

  Integrate using a REST API with eight SDKs (Node, Python, Go, Ruby, Java, PHP, .NET, Rust), an MCP server exposing 496 tools over OAuth, or a CLI with 371 commands.
• Blog publishing

  Publish and manage articles on WordPress, Shopify, Wix, and Webflow through the Blogs API.

What are the use cases of Zernio?

• AI agent automation

  An AI coding assistant like Claude Code connects via the MCP server over OAuth to schedule posts across LinkedIn and X without manual API key entry.
• Multi-platform product launch

  A developer sends one API request containing text and video to simultaneously publish an Instagram Reel, a LinkedIn post, and a TikTok video.
• Coaching app messaging

  A SaaS application integrates the WhatsApp inbox API to handle customer conversations directly within its own interface.

Zernio Pricing Information:

• Free starting tier

  No credit card required; allows connecting an account, publishing, and receiving webhooks. Specific usage quotas are not stated.
• Phone numbers

  Prices vary by country, such as $3/mo for the United States, $4/mo for Estonia, from $3/mo for Australia and Sweden, $5/mo for Brazil, and $30/mo for Indonesia. Some regions require documents or are pre-order only.
• Enterprise

  Custom pricing for organizations running over 2,000 connected accounts, including SSO, MFA, SCIM, RBAC, audit logs, SOC 2 compliance, and a direct line to engineering.