How to Automate Social Media Publishing Across 30+ Platforms Using Postall's API

Social media management has long been trapped inside dashboards. You log in, write, schedule, post — repeat. Postall breaks that cycle with a full REST API that lets developers, agencies, and automation enthusiasts take complete control of their content publishing pipeline.

Getting Started in 3 Steps

Setup is refreshingly straightforward. Head to your Postall Settings, generate an API key, connect your social platforms on the Platforms page, then pass your key as a Bearer token in the Authorization header. That's it — you're live.

What the API Can Do

The API exposes six clean endpoints covering the entire content lifecycle:

• POST /api/users/api-key — generate your key


• GET /api/platforms — list all connected social accounts


• POST /api/posts — create a new post


• POST /api/posts/{id}/publish — push it live


• GET /api/posts — retrieve your post history


• GET /api/posts/{id} — fetch details on any specific post

Whether you're auto-publishing from a CMS, triggering posts from a product launch event, or building a custom content calendar app — this covers everything you need.

Security First: IP Binding

One of the most unique features is IP binding. Your API key locks to the first IP address that uses it. Every subsequent request must come from that same IP. If someone else tries to use your key, it gets blocked automatically. Leaked keys become useless without your IP.

n8n & Zapier — No Code Required

Don't write code? No problem. Postall's API integrates directly with n8n and Zapier via a simple HTTP Request node. Point it at https://postall.io/api/posts, set your Bearer token, add your content and platforms — done. Full social media automation without a single line of code.

Who Is This For?

Developers building content tools, agencies managing dozens of client accounts, and marketers automating product announcements will find the Postall API invaluable. Combined with Postall's $9/month Pro plan and support for 30+ platforms, it's arguably the most affordable API-enabled social media infrastructure available today.