Zernio provides a unified social media and messaging API that lets developers and AI agents publish content, send messages, run ads, and engage with customers across 16 channels through a single integration. The platform handles platform-specific complexities like OAuth, rate limits, and media transcoding, while offering SDKs, a CLI, and an MCP server for AI agent connectivity. Zernio also includes telephony features for voice calls, SMS, and WhatsApp, with usage-based pricing averaging $4.80 per connected account.
Funding
Funding not disclosed
Founders
Product
Problem
Developers building social media and customer communication features must integrate separately with each platform's proprietary API, each with its own authentication flow, rate limits, media requirements, and breaking changes. This fragmentation forces engineering teams to write and maintain custom code for every channel, consuming significant development time and creating ongoing maintenance burdens that distract from core product work.
Solution
Zernio provides a single unified API that connects developers and AI agents to 16 social, messaging, and advertising platforms through one integration. The platform abstracts away platform-specific complexities including OAuth handshakes, token rotations, media transcoding, and rate limiting, allowing users to publish posts, schedule content, reply to comments and DMs, pull analytics, and manage ad campaigns across all major networks from a single endpoint. Zernio also offers telephony capabilities for voice calls, SMS, and WhatsApp messaging, plus an MCP server that lets AI agents connect to the platform using natural-language setup prompts. Developers can sign up, obtain an API key, and make their first call in minutes without demos or approval forms, with full transparency through a public changelog, status page, and itemized usage logs.
Target Audience
Primary customers are software developers, product teams, and AI agent builders who need to integrate social media publishing, messaging, and advertising capabilities into their applications without maintaining multiple platform-specific integrations.
Features
- Unified REST API covering social posting, scheduling, messaging, analytics, and advertising across 16 platforms including Instagram, TikTok, LinkedIn, WhatsApp, Telegram, Discord, and Slack
- MCP server integration enabling AI agents like Claude Code, Cursor, Codex, and custom bots to connect and operate through natural-language setup prompts
- Advertising API supporting seven ad networks including Meta Ads, Google Ads, LinkedIn Ads, TikTok Ads, Pinterest Ads, X Ads, and OpenAI Ads with campaign launch, conversion tracking, and spend reporting
- Telephony features for voice calls, SMS, and WhatsApp with per-country pricing tables and itemized per-call and per-message billing
- SDKs, CLI tools, and n8n templates for rapid integration across multiple development environments
- Public changelog, status page, and full request logs for every API call made on behalf of users, ensuring operational transparency