n8n, Make and Zapier

Any tool that can send an HTTP request can schedule posts. The pattern is the same everywhere:

1. Credential: a header Authorization with the value Bearer pf_….
2. Media: POST https://postflow.biz.id/api/v1/media with { "url": "<public file URL>" }, then keep the id.
3. Post: POST https://postflow.biz.id/api/v1/posts with the caption, mediaIds, targets and action.
4. Results: add a webhook pointing at the tool’s webhook trigger to react to post.published or post.failed.

n8n

Use an HTTP Request node with Header Auth (name Authorization, value Bearer pf_…) and Send Body → JSON. You can also import the OpenAPI document into tools that read it. For an AI Agent node, connect the MCP server instead.

Make

Use the HTTP → Make a request module with method POST, body type Raw, content type JSON, and the Authorization header.

Zapier

Use Webhooks by Zapier → Custom Request with the Authorization header and a JSON body. To start a Zap when a post publishes, use Webhooks by Zapier → Catch Hook and paste its URL into PostFlow’s webhook settings.

Ideas

• A new row in a Google Sheet (date, caption, image URL) becomes a scheduled post.
• A new product in your shop becomes a draft on every account for someone to review.
• A failed post sends a WhatsApp or Slack message to the person on duty.
• A new comment (comment.received) goes to a help-desk tool, or to an AI step that drafts a reply for a person to approve.