Best social media and ads API integration platforms for AI agents (2026)

The guide compares five platforms for developers integrating social media, advertising, and related business APIs into SaaS products or AI agents, emphasizing that Facebook, Instagram, LinkedIn, Meta Ads, Google Business Profile, and other services require distinct permissions, OAuth approvals, and operational controls. It evaluates Nango, Ayrshare, Composio, Zernio, and Unified.to based on publishing and ad-management coverage, OAuth ownership, customer and agent access scoping, event handling, custom-code support, integrations beyond social, and deployment options. Nango is presented as the broadest option, combining tools and customizable functions across more than 1,000 APIs, including CRM and ad workflows, with support for managed or customer-owned OAuth apps, scoped agent sessions, syncs, webhooks, and self-hosting options. Ayrshare is positioned for multi-network social publishing and engagement but offers only Meta post boosting for ads and relies largely on its own OAuth applications; Composio provides managed agent tools for social and ad actions but lacks social event triggers, Google Business Profile support, and token export; Zernio combines publishing, inbox features, and basic advertising through vendor-managed apps but has uneven editing capabilities and limited customization; and Unified.to focuses on live, normalized advertising data across networks but has incomplete social-writing features and requires customers to build their own change detection. The guide concludes that platform selection depends on whether teams need broad, customizable integrations across business systems, social-only publishing, ready-made internal-agent actions, vendor-managed social and ads tools, or normalized cross-network advertising operations.

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