Pick the Zap trigger
Start with the event you actually care about: a new CMS item, CRM update, form submission, Stripe event or scheduled run.
Zapier + PostSider
Connect Zapier to a social media publishing API
Keep the trigger and business logic in Zapier, then hand the final publishing step to PostSider through a normal HTTP request.
Start with the social media scheduler API or browse the full developer platform.
How it works
A Zap only needs one publishing request.
You do not need a different social action for every network. Connect the accounts in PostSider once, then let the Zap target the channel you want.
Use Webhooks by Zapier
Send the request to the PostSider API from a Custom Request step. That keeps the Zap simple and avoids a different social connector for every network.
Create a draft or scheduled post
Pass the content, target channel and publish mode. A draft-first Zap is the safer default when the copy still needs a human review.
Check the result in PostSider
The post lands in the same PostSider calendar as manually created content, so you can inspect what the Zap actually created.
Concrete example
What the Zapier step looks like
Use Webhooks by Zapier rather than relying on a dedicated PostSider Zapier app. The exact body stays in the API docs so the page does not go stale when provider fields change.
Webhooks by Zapier -> Custom Request
Method: POST
URL: https://api.postsider.com/public/v1/posts
Headers:
Authorization: {{POSTSIDER_API_KEY}}
Content-Type: application/json
Data:
Use the current request body from the PostSider API reference.
For a review-first workflow, create a draft before publishing.Related developer guides
Go deeper where your workflow needs it.
Social media automation API See the broader pattern for backend, CMS and automation-platform publishing. Read more → PostSider + n8n Prefer a workflow tool with importable JSON? PostSider already ships ready-made n8n workflows. Read more → Publishing webhooks Use callbacks when later automation steps depend on the publishing result. Read more →
FAQ
Common questions.
Can Zapier schedule social media posts through PostSider?
Yes. Use a Webhooks by Zapier request to call the PostSider public API and create a draft, scheduled post or immediate publication.
Do I need a separate Zapier integration for every social network?
No. The Zap talks to PostSider once. The target social accounts are connected inside PostSider.
Can I review a Zapier-created post before it publishes?
Yes. Create a draft first and review it in the PostSider calendar before scheduling or publishing.
Where should I store the PostSider API key in Zapier?
Keep it in the Zapier step configuration or a secure credential field rather than placing it in public content or client-side code.