Build with Buffer
Buffer's API makes social media management a feature you can build into your own apps and workflows.
Buffer for Developers
The social layer for whatever you're building
Buffer's API powers social sharing inside your SaaS, your creator tool, your AI agent, or the script that posts your release notes.
Benefits
Buffer handles the complexity
Add social publishing and scheduling to your product with a single GraphQL endpoint. Skip the platform tax and spend your time on the code that matters.
Make it feel native
Your users connect their Buffer account, publish from your UI, and see their content in your dashboard. Their social, your experience. OAuth is fully managed.
Ready for AI workflows
Connect your agent with Buffer's MCP server. Native support for Claude, ChatGPT, Cursor, Raycast, and Perplexity.
Free to start, fair to scale
Free to start and transparent pricing as you grow. No surprise rate caps, no rug pulls.
API
Bake social publishing into your product
Add scheduling, cross-posting, and more to your product without integrating eight platform APIs. Surface the social features your customers want, right where they already work.
Get started for free
Build
Build the creator tool you wish existed
Thread splitting. Snippet libraries. Custom calendars. Whatever Buffer hasn't shipped yet, you can build on top of the API — usually in a weekend.
Get started for free
MCP
Give your agent a publishing layer
Your agent drafts the post, Buffer's MCP server publishes it. Native support for Claude, ChatGPT, Cursor, Raycast, and Perplexity — no glue code or platform-specific integration.
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Automate
Script the boring parts
Post a release note from your deploy script or plug your CMS into social. The API and CLI treat social publishing the way you treat the rest of your stack.
Get started for free
Resources
Learn more about Buffer API
Getting Started with Buffer API
Connect Buffer to your agents, automation tools, or build something entirely new.
How WriteStack's Founder Built Cross-Platform Scheduling for Substack Creators Using Buffer's API
WriteStack founder Orel Zilberman used Buffer's API to add cross-platform scheduling for Substack creators, letting users publish Notes alongside LinkedIn, X, and other channels from one workflow.
Start building with Buffer's API
Free to start. Transparent pricing as you grow.
FAQs
What is Buffer's API?
What is Buffer's API?
A GraphQL API that gives you full access to posts, ideas, channels, and analytics across every social platform Buffer supports — through a single endpoint. It's the same API that powers Buffer itself.
Which platforms does the API support?
Which platforms does the API support?
How do I authenticate?
How do I authenticate?
For your own scripts and apps, generate an API key from your Buffer dashboard. For multi-user apps where other people connect their Buffer accounts, use OAuth — it's fully managed, so you don't have to build your own auth flow.
Is the API free to use?
Is the API free to use?
Yes. The API is available on every Buffer plan, including the free plan. You get generous limits to start, and pricing scales transparently if you need more.
Do I need to be an engineer to build with Buffer?
Do I need to be an engineer to build with Buffer?
No. Plenty of people are shipping real things on Buffer's API using Lovable, n8n, Zapier, and AI coding assistants. If you can read documentation and copy an example, you can build something useful.
What are the rate limits?
What are the rate limits?
Rate limits depend on your plan and use case. Standard limits are documented in the developer portal. If you're building something high-volume — like an AI agent that publishes at scale, or a SaaS product with thousands of users — get in touch and we'll work out the right tier.
Can I build a multi-user app on top of Buffer?
Can I build a multi-user app on top of Buffer?
Yes. OAuth lets your users connect their own Buffer accounts to your app. Several developers are already shipping products this way — PostIQ, WriteStack, and others.
Does Buffer work with AI assistants and agents?
Does Buffer work with AI assistants and agents?
Yes. Buffer ships an MCP server with native support for Claude, ChatGPT, Cursor, Raycast, and Perplexity. AI agents can draft posts, schedule them, and manage your queue directly — no custom integration required.
Is there support if I get stuck?
Is there support if I get stuck?
Yes. Docs include an AI-powered helper that knows the schema and can help you debug queries. For deeper questions, our developer community on Discord is active, and the team behind the API is reachable.
What happens if Buffer pivots or gets acquired?
What happens if Buffer pivots or gets acquired?
Buffer has been independent since 2010 and profitable for most of that time. There's no investor on the cap table pushing for an exit, and our team's incentive is to keep the developer ecosystem healthy. We're transparent about how the business is run — the metrics and salaries are public.