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Zernio

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One API to publish, message, advertise, and analyze across 15 social and messaging platforms.

4.3
How we rateFreemiumAgents & Automation
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Pricing

Freemium

Usage-based per connected account: first 2 accounts free (no card), then $6/account/mo for accounts 3-10, $3/account/mo for 11-100, and $1/account/mo for 101+. X/Twitter API calls, phone numbers, calls, and SMS are billed separately at pass-through rates.

Pricing verified Jul 2026

Who It's For
Developers building social features into productsAgencies managing many client social accountsTeams adding WhatsApp messaging without regulatory paperworkBuilders wiring AI agents to social channels
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About Zernio

Zernio is a unified social media and messaging API for developers and AI agents. It covers publishing, scheduling, analytics, DMs, comments, and ad boosting across 15 channels including Instagram, TikTok, X, LinkedIn, YouTube, WhatsApp, and Bluesky, using official platform APIs. It also provides WhatsApp business numbers with KYC handled, and ships an MCP server so agents can post and manage accounts in natural language.

Key Features

  • Unified posting, scheduling, and analytics across 15 platforms
  • Single OAuth connection flow, no per-platform dev apps
  • Unified inbox for DMs, comments, and reviews
  • Ad boosting across multiple ad networks
  • WhatsApp number provisioning with KYC handled
  • MCP server for natural-language agent control

Pros & Cons

Pros

+ Single OAuth flow and API across 15 channels

+ Uses only official platform APIs, avoiding account bans

+ Transparent graduated per-account pricing with a real free tier

+ MCP server with 280+ tools for agent workflows

Cons

- Developer-oriented; requires API skills or no-code connectors

- X/Twitter usage costs extra at pass-through rates

- Per-account billing can add up for agencies with many clients

Use Cases

Adding social publishing to a SaaS product without building 15 integrationsLetting AI agents post and reply to DMs via MCPScheduling content across all major platforms from one callRunning unified analytics for many client accountsProvisioning WhatsApp business numbers programmatically

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