The social media API landscape has expanded rapidly, with many new contenders built for developers and AI agent builders. APIs vary by target users, including solo developers creating single tools and agencies managing many client accounts. Some provide MCP servers that can plug into Claude or other agent systems, while others do not. Pricing ranges from free tiers to monthly plans around $30, with enterprise options costing $149 per month or requiring custom quotes. Buffer offers a strong free tier with an established brand, a public MCP server, a CLI, and support for 11 channels. Ayrshare focuses on enterprise analytics and comment management. Postiz provides an open-source option with 30+ platforms and a free self-hosted version. Upload-Post and Zernio are newer options suited to indie developers and AI agent builders.
"The social media API space exploded in the last year would be an understatement. There are plenty of contenders in the space, most of them less than two years old, and all of them built with developers and AI agent builders in mind."
"Some are built for solo developers building one tool, while others cater to agencies managing dozens of client accounts. Some ship MCP servers ready to plug into Claude or your agent of choice; others don't. The answer to which social media API is best isn't one-size-fits-all."
"The best social media API depends on what you're building and how much polish you need. Buffer is the strongest free-tier option from an established brand, with a public MCP server, CLI, and 11 supported channels. Ayrshare is the most mature for enterprise teams that need analytics and comment management. Postiz is a great open-source option, with 30+ platforms and a free self-hosted version. Upload-Post and Zernio are strong newcomers for indie devs and AI agent builders."
"Most unified social media APIs range from free (like Buffer) to $30/month entry pricing, with Ayrshare and Phyllo at the enterprise end ($149/month+ and custom quote, respectively). MCP server support is the fastest-growing new feature. Buffer, Upload-Post, Zernio, and Genviral all sh"
Read at Buffer: All-you-need social media toolkit for small businesses
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