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Zernio

Marketing infrastructure for agents

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Zernio is a social media API that lets products and agents publish, schedule, and manage content across multiple channels through a single integration. It handles platform reviews, OAuth token rotations, media transcoding, and rate limits on behalf of developers, covering social networks, blogs, messaging, voice, and ads.

The platform offers a REST API with SDKs, MCP, and CLI access, supporting posting, scheduling with timezone support, bulk CSV uploads, queueing, first comments, comments and DMs, analytics, webhooks, and an ads manager across seven ad networks. Additional modules include a Blogs API for WordPress and Shopify, a Communication API for WhatsApp, SMS, iMessage, and calls with phone number provisioning, a Tools API for video downloads and transcripts, a visual content calendar, and team collaboration features.

Zernio is aimed at developers and teams building social publishing, messaging, or advertising into their products. It is packaged with a free tier covering two accounts and no credit card required, usage-based billing for additional accounts and metered services like messages and managed ads, and an Enterprise edition with custom terms, SAML SSO, SCIM, MFA, audit logs, RBAC, and dedicated engineering support.

12 alternatives to Zernio

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