Social media posting API

6 min read • Last updated: May 27, 2026

Build social media publishing into your own tools with the Postoria Public API.

The Postoria Public API helps developers, agencies, and software teams create and schedule social media posts from external systems. Instead of moving every post into Postoria manually, you can connect your workflow to Postoria and send approved content directly into your publishing process.

Use the API to support internal tools, client portals, content operations, CMS integrations, automation workflows, and custom dashboards that need a reliable way to create social media posts programmatically.

Many teams already create content outside their social media management tool. Posts may start in a CMS, spreadsheet, approval system, campaign database, ecommerce platform, or internal content hub.

The Postoria Public API gives those systems a cleaner path into your social media calendar. Your app can create posts, attach media, choose connected social accounts, and schedule content without asking someone to copy and paste every caption by hand.

Use the Public API when you want to:

Create social media posts from your own application
Schedule posts programmatically
Upload media for API-created posts
Send approved content from a CMS, portal, or internal tool into Postoria
Build custom social media workflows for clients or teams
List available workspaces and connected social accounts
Add posts to existing publishing queues
Check the status of API-created posts
Cancel or delete scheduled API-created posts when plans change

What you can build with the Postoria Public API

Send approved articles, announcements, videos, or product updates from your CMS into Postoria as ready-to-schedule social posts.

Client content portals

Let clients submit or approve content in your own portal, then create the matching social media posts in Postoria without manual re-entry.

Internal marketing tools

Connect campaign planning systems, content calendars, or internal dashboards to your social publishing workflow.

Ecommerce and product updates

Create social posts from product launches, collection updates, promotions, or recurring product marketing workflows.

Agency automation

Build repeatable client workflows where approved content can move from your agency system into Postoria faster and with fewer manual steps.

Create and schedule posts programmatically

The core Public API workflow is simple: your system prepares the post content, chooses the workspace and social accounts, uploads any required media, and creates the post in Postoria.

From there, the content stays connected to the rest of your Postoria workflow. API-created posts can be scheduled, tracked, reviewed, and managed alongside other content in your workspace.

This makes the API useful for teams that want automation without replacing their social media management dashboard.

The Public API supports media upload, so your workflow can create posts that include images or videos instead of only plain text.

This is useful for product images, blog graphics, campaign assets, short-form video workflows, client-approved creatives, and other content that already exists in your own system before it reaches Postoria.

Postoria is built around workspaces and connected social accounts. The Public API is designed to work with that structure, so your application can list the workspaces and social accounts available to the authenticated Postoria account.

For teams using publishing queues, the API can also work with existing queues. That makes it easier to send content into a recurring publishing schedule instead of choosing every publishing time manually.

Learn more about queues on the social media publishing queues page.

Keep API-created posts manageable

Automation is most useful when teams can still see what was created and change course when needed.

With the Postoria Public API, your system can retrieve the status and details of a specific API-created post. If a scheduled or queued API-created post should not go live anymore, your workflow can delete it before publishing.

This helps keep automated publishing controlled, visible, and easier to manage.

Building direct integrations with multiple social networks can be time-consuming. Each platform has its own publishing behavior, account connection flow, media requirements, and API changes.

Postoria gives your team one publishing layer for supported social networks. Your application can focus on creating the right content and passing it into Postoria, while your team keeps using Postoria for account connections, scheduling, review, and day-to-day publishing.

For a broader overview of Postoria publishing, visit the post across all social media page.

Good fit for developers and teams

The Public API is a good fit for:

Developers building social media features into an existing product
Agencies with custom client portals or approval workflows
Marketing teams with internal content tools
SaaS products that generate social content for users
Ecommerce teams with product or promotion workflows
Content operations teams that want to reduce manual publishing work

Public API and Bulk Upload

Postoria supports more than one way to move external content into your publishing workflow.

Use Bulk Upload when your team works from CSV files and wants to import many posts from a spreadsheet.

Use the Public API when your workflow needs a programmatic connection from another application, service, or internal system.

Both options help reduce manual post creation, but they fit different workflows: Bulk Upload is best for spreadsheet-based imports, while the Public API is best for software-driven publishing automation.

Frequently asked questions

Yes. The Postoria Public API is designed to let developers create and schedule social media posts from external tools and workflows.

Yes. The Public API supports creating and scheduling posts programmatically, so approved content can move from your own system into Postoria.

Can I upload images or videos through the API?

Yes. The Public API supports media upload for posts created through API workflows.

Can I use the API with multiple workspaces?

Yes. The API is designed around Postoria workspaces. Your application can list available workspaces and create posts inside the relevant workspace.

Can I add API-created posts to publishing queues?

Yes. The Public API can work with existing queues, so your workflow can send content into a recurring publishing schedule.

Is the Public API the same as Bulk Upload?

No. Bulk Upload is for importing posts from CSV files. The Public API is for creating and scheduling posts from another application or custom workflow.

The Postoria Public API gives developers and teams a practical way to connect their own systems to social media publishing. Create posts from external tools, upload media, schedule content, and keep API-created posts inside the same Postoria workflow your team already uses.

If your content starts in another product, CMS, portal, or internal system, the Public API helps move it into Postoria with less manual work and more control.

Social media posting API