Templates / Post daily LinkedIn and Instagram content with Airtable, Claude, OpenAI and Buffer

Post daily LinkedIn and Instagram content with Airtable, Claude, OpenAI and Buffer

Unknown

by Wout Belmans ✓ · 2,761 views · created 2026-07-14 · Social Media, Multimodal AI

Unknown. This template uses community nodes we can't verify statically. Uses community nodes that can't be verified statically (unverified community packages are off by default in 3.0). Static check, last run 2026-10-19.

What this workflow does

This workflow has 14 nodes and runs on a schedule (every day at 08:00). Along the way it connects Airtable and Buffer (community). It also calls api.anthropic.com, api.openai.com and api.imgbb.com over HTTP.

How it runs

Trigger: On a schedule (every day at 08:00).

Get Post Ideas (Airtable): search
Check History Posts (Airtable): search
Filter and Choose Post Topic (Code): runs custom JavaScript code
Is Valid Post? (If): checks a condition and branches into true / false
Claude - Write Post Text (HTTP Request): calls api.anthropic.com (POST)
Put Text in Variable (Edit Fields (Set)): sets 1 field: postText
ChatGPT - Generate Image (HTTP Request): calls api.openai.com (POST)
Base64 to PNG (Convert to File): converts data to a file (to binary)
Upload Post to ImgBB (HTTP Request): calls api.imgbb.com (POST)
Create LinkedIn Post (Buffer): work with post

…plus 2 more steps. See the full node list below.

Services it uses

AirtableBuffer (community)

HTTP calls to: api.anthropic.com, api.openai.com, api.imgbb.com

Before you upgrade to n8n 3.0

We can't fully verify this one: it relies on 1 community package, and n8n 3.0 turns unverified community packages off by default (N8N_UNVERIFIED_PACKAGES_ENABLED=false).

Check that @bufferapp/n8n-nodes-buffer is verified or supports 3.0 (used in Create LinkedIn Post, Create Instagram Post).

Nodes used (9)

Schedule Triggern8n-nodes-base.scheduleTrigger
Airtablen8n-nodes-base.airtable
Coden8n-nodes-base.code
Ifn8n-nodes-base.if
No Operation, do nothingn8n-nodes-base.noOp
HTTP Requestn8n-nodes-base.httpRequest
Edit Fields (Set)n8n-nodes-base.set
Convert to Filen8n-nodes-base.convertToFile
Buffer@bufferapp/n8n-nodes-buffer.buffer

From the author

Quick overview This workflow runs daily and pulls active topics from Airtable, uses Anthropic Claude to write a LinkedIn-style caption, generates a matching illustration with the OpenAI Images API, hosts the image on ImgBB, schedules posts to LinkedIn and…
Excerpt from Wout Belmans's description on n8n.io.

View the original on n8n.io → Check your own copy

Post daily LinkedIn and Instagram content with Airtable, Claude, OpenAI and Buffer

What this workflow does

How it runs

Services it uses

Before you upgrade to n8n 3.0

Nodes used (9)

From the author

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