Connect n8n to Post Array

1. 01

   Step 1 In Post Array, open Settings, then Agents and API, and create a service account. Copy its token and keep it in n8n's credentials.

2. 02

   Step 2 Add an HTTP Request node. Set Method to POST and URL to this address.

   https://api.postarray.com/v1/content

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3. 03

   Step 3 Turn on Send Headers and add these two. Use a new Idempotency-Key for every new post, and the same one when you retry.

   Authorization: Bearer <your service account token>
   Idempotency-Key: <a new key for each post>

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4. 04

   Step 4 Turn on Send Body, choose JSON, and send the draft with your own project and account ids.

   {
     "projectId": "<your project id>",
     "body": "We just published a new article.",
     "targets": [{ "connectionId": "<your account id>" }]
   }

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• New blog post, new draft

  Set it up

  Start from an RSS trigger. For each new item, send a draft with its title and link to your LinkedIn and Bluesky accounts. Each draft waits in Post Array until you schedule it.

• A spreadsheet of posts

  Set it up

  Start from a new row in a spreadsheet. Send the row's text as a draft to the accounts you choose. Put the row number in the Idempotency-Key, so a retry never makes a second draft.

• A morning check

  Set it up

  Every morning, ask Post Array for posts that need attention with GET /v1/posts?status=needs_attention, and send yourself a message when the list is not empty.

The token belongs to a service account with its own limits, and one button in Settings stops it. Drafts made this way wait in Post Array until someone schedules them.

• MakeMake talks to Post Array's REST API with its HTTP app and a service account token. Use it to turn new rows, feed items or form answers into drafts.
• ZapierZapier talks to Post Array's REST API with Webhooks by Zapier and a service account token. Use it to turn new rows, emails or form answers into drafts.

Make a free account, connect your social accounts, then connect n8n. It takes a few minutes.