What is Buffer API?

Buffer API is a GraphQL interface that lets you publish and manage content across 11 social platforms through a single endpoint. It connects your own tools, workflows, and AI assistants directly to your Buffer account, enabling you to automate publishing, capture ideas, and build custom integrations. The API ships with an MCP server, pre-built automation templates, a CLI, and an interactive API explorer, and it's available on every Buffer plan — including Free.

Who it's for

• Content creators who want to use AI assistants like Claude or ChatGPT to brainstorm and schedule posts without leaving the conversation
• Marketing teams managing multiple channels who need to automate reporting and publishing across dozens of accounts in different countries
• App developers and no-code builders who want to build custom integrations, automation workflows, or third-party tools on top of Buffer's publishing features

Key features

GraphQL API with full access

The API provides complete access to posts, ideas, channels, and analytics. You can fetch organizations, schedule content, and capture ideas with a single GraphQL request — no SDK required. Test queries live in the interactive API Explorer before writing any code.

MCP server for AI assistants

Native connections for Claude, Cursor, Raycast, ChatGPT, and Perplexity let you go from idea to published without leaving the conversation. Ask AI to brainstorm and schedule content — Buffer handles the rest.

Pre-built automation templates

Connect Buffer to IFTTT, Zapier, n8n, or Make using ready-made templates. Turn a weekly chore into a workflow that runs itself. Not seeing what you need? Build it yourself with the API.

AI-powered developer support

Get help writing queries and debugging directly in the docs. The API also includes a CLI and an interactive explorer, making it easy to test and iterate without starting from scratch.

What stands out

One API. Every major social platform. Connect Buffer to your agents, automation tools, or build something entirely new.

Buffer API is an official API partner with Meta, LinkedIn, X, and more — meaning you get reliable, supported access to 11 platforms through a single endpoint. It's available on every plan including Free, so you can start building automations without upgrading. The combination of an MCP server for AI assistants, no-code templates, and a full GraphQL API means you can scale from a simple Zapier workflow to a custom app without switching tools.

Worth checking out if…

You're a creator, marketer, or developer who wants to automate social media publishing, connect AI assistants to your content workflow, or build custom integrations across multiple platforms. If you manage more than a few channels, need to schedule content programmatically, or want to replace manual reporting with automated workflows, Buffer API gives you the flexibility to build exactly what you need — without leaving your existing tools.