Zernio positions itself as "marketing infrastructure for agents," with the goal of enabling products or agents to reach customers through one set of APIs without having to integrate with each platform individually or wait for platform approval. The official page states that more than 200,000 developers already use it, and emphasizes that it integrates only based on official APIs, with Zernio taking on platform changes, token rotation, and rate limits.
Purpose and overall positioning: Zernio aggregates marketing capabilities such as social publishing, ad delivery, messaging, voice calls, and blog publishing under one API key, and officially states that going from sign-up to sending the first post, message, report, or ad can be completed in 5 minutes. It is mainly aimed at developers, AI agent builders, and teams that need programmatic marketing capabilities.
Social media API: The official page states that it supports 16 networks unified into one API, with capabilities including publishing and scheduling content, replying to comments and direct messages, and pulling analytics data. The platforms listed on the page include Instagram (Reels, Stories, direct messages), TikTok, X, LinkedIn (personal or company page), Facebook (Pages, Reels, comments), Threads, YouTube (upload, scheduling, moderation), Pinterest, Bluesky, Reddit, Snapchat, Discord, Telegram, Slack, and Google Business (local posts, reviews, and replies).
Ads API: It officially states coverage of 8 ad management platforms, including Meta, Google, LinkedIn, TikTok, Pinterest, X, OpenAI, and Reddit Ads, using unified endpoints and a unified response structure. Capabilities include creating campaigns, ad sets, and creatives in code; modifying budgets, pausing, and resuming during delivery; and reading spend and performance across ad networks in the same data shape.
Communication API: It officially states that it unifies WhatsApp, iMessage, SMS, and phone into one API, and provides one inbox and one bill; you can search, purchase, and verify phone numbers in 55 countries, and use the same number to send WhatsApp, SMS, and calls. It is officially positioned as communication infrastructure for voice agents and chatbots.
Blog API: It officially states that articles can be published and managed on WordPress and Shopify through the Blogs API (the original page text says "WordPress Shopify").
How to use: The official site gives three integration paths. First, use the SDK to write code yourself; the page states that 8 SDKs are provided, covering 17 platforms, plus a raw REST API. Second, hand it to an agent via MCP; the page states that 496 tools are provided on one OAuth connection, with no installation or self-hosting required, and an example shows registering in Claude Code. https://mcp.zernio.com/mcp and log in via OAuth. Third, run from the command line; the page states it includes 47 groups and 371 commands, outputs JSON by default, making it easy to use in pipelines and with agents.
Use cases: The official use cases include programmatic multi-platform publishing and scheduling, comment and direct message replies, cross-platform data analysis, cross-ad-network delivery and budget adjustments, building customer outreach and voice agents with WhatsApp/SMS/phone, publishing articles on WordPress/Shopify, and enterprise-grade multi-account management (the page states it can run more than 2,000 connected accounts within a workspace, and provides SSO authentication, custom pricing, and direct access to an engineering team).
Pricing and limits: The official information states the free tier allows up to 2 accounts, and offers a way to get started without a credit card or a sales call; enterprise-grade is custom pricing. The page does not provide other specific prices, plan amounts, quota caps, or rate limit values. Also note that the publication date and example times shown on the page (such as “Published August 12, 2026”) are as they appear in the original official page and have not been changed.
