Create Social Posts From RSS Feeds with Openai, Unsplash, and Buffer

The workflow JSON

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{
  "id": "3CHx7dyvHcIvWnp7",
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "name": "Social Media Auto Reposter",
  "tags": [],
  "nodes": [
    {
      "id": "daa6302d-15a5-4d28-857a-ebad341fe360",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        3440,
        1136
      ],
      "parameters": {
        "color": 3,
        "width": 800,
        "height": 1000,
        "content": "## Social Media Auto Reposter\n\n### How it works\n\nThis workflow automatically reposts new RSS feed items to social media. When a new feed item arrives, it uses OpenAI to generate social copy, fetches a supporting image from Unsplash, and then creates Buffer posts for X, LinkedIn, and Instagram in sequence.\n\n### Setup steps\n\n- Configure the RSS Feed Trigger with the source feed URL and polling settings.\n- Add valid OpenAI credentials and adjust the model/prompt so it produces the desired post copy.\n- Configure the HTTP Request node with a valid Unsplash API access key and desired photo query parameters.\n- Connect Buffer credentials and select the correct Buffer channels/profiles for X, LinkedIn, and Instagram.\n\n### Customization\n\nUpdate the OpenAI prompt for platform-specific tone, change the Unsplash search parameters to match your niche, or add/remove Buffer nodes for different social channels."
      },
      "typeVersion": 1
    },
    {
      "id": "95133d5d-e75f-420d-b48a-6b94ff2d2cea",
      "name": "Sticky Note - Trigger",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        4336,
        1408
      ],
      "parameters": {
        "color": 4,
        "width": 400,
        "height": 520,
        "content": "## Trigger\n\n### Watch RSS feed\n\nPolls the configured RSS feed on a schedule and fires whenever a new article/item is published."
      },
      "typeVersion": 1
    },
    {
      "id": "44937829-a6e4-4d2a-a959-f96cb91b7ab5",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        4752,
        1392
      ],
      "parameters": {
        "color": 6,
        "width": 480,
        "height": 536,
        "content": "## Read and draft content\n\nStarts from new RSS feed items and sends the article content into OpenAI to generate repost-ready social media text."
      },
      "typeVersion": 1
    },
    {
      "id": "6c45dccb-d525-4eec-a594-73382fe012ac",
      "name": "Sticky Note2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        5248,
        1392
      ],
      "parameters": {
        "color": 5,
        "width": 352,
        "height": 536,
        "content": "## Fetch post image\n\nRetrieves a random image from Unsplash via HTTP request to enrich the generated social post before publishing."
      },
      "typeVersion": 1
    },
    {
      "id": "591a1855-6553-4c85-a2ad-9376e1b42003",
      "name": "Sticky Note3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        5616,
        1392
      ],
      "parameters": {
        "color": 7,
        "width": 972,
        "height": 536,
        "content": "## Publish across channels\n\nCreates Buffer posts in sequence for X, LinkedIn, and Instagram using the generated copy and fetched media asset."
      },
      "typeVersion": 1
    },
    {
      "id": "59185950-bc15-461c-9f40-f15ba043fe9e",
      "name": "When RSS Feed Updates",
      "type": "n8n-nodes-base.rssFeedReadTrigger",
      "position": [
        4432,
        1664
      ],
      "parameters": {
        "feedUrl": "https://techcrunch.com/feed",
        "pollTimes": {
          "item": [
            {
              "mode": "everyHour"
            }
          ]
        }
      },
      "typeVersion": 1
    },
    {
      "id": "1a51543a-b077-4354-b02e-8ec9e2a8919f",
      "name": "OpenAI Content Generator",
      "type": "@n8n/n8n-nodes-langchain.openAi",
      "position": [
        4800,
        1664
      ],
      "parameters": {
        "modelId": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4o-mini",
          "cachedResultName": "GPT-4O-MINI"
        },
        "options": {},
        "responses": {
          "values": [
            {
              "content": "=IMPORTANT: Never use asterisks (**) or markdown formatting. Use plain text only.\n\nYou are a viral social media expert.\n\nArticle Title: {{ $json.title }}\nArticle Content: {{ $json.contentSnippet }}\n\nCreate 3 highly engaging social media posts:\n\nTWITTER:\n- Maximum 200 characters including spaces and hashtags\n- Start with a hook (surprising fact or question)\n- Add relevant emojis\n- End with call to action\n- Add 2-3 trending hashtags\n- No asterisks or markdown\n\nLINKEDIN:\n- Professional but engaging tone\n- Start with a bold statement on first line\n- 3-4 paragraphs with line breaks between them\n- Add bullet points using dash (-) not asterisks\n- End with a question to drive comments\n- Add 5 relevant hashtags\n- No asterisks or markdown formatting\n\nINSTAGRAM:\n- Fun and energetic tone\n- Start with attention grabbing line\n- Use lots of emojis\n- Add call to action\n- Add 10-15 hashtags\n- No asterisks or markdown\n\nReturn ONLY in this exact format, nothing else."
            }
          ]
        },
        "builtInTools": {}
      },
      "credentials": {
        "openAiApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 2.3
    },
    {
      "id": "0b5ed0b0-0aea-4eef-a755-e9078c040974",
      "name": "Fetch Random Image from Unsplash",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        5328,
        1664
      ],
      "parameters": {
        "url": "=https://api.unsplash.com/photos/random?query={{ $('When RSS Feed Updates').item.json.title.split(' ').slice(0,3).join(' ') }}&client_id=VEjr7_ERMitKzXjhWFyIgp5wModg11DiwuGatVW6ZQw",
        "options": {}
      },
      "typeVersion": 4.4
    },
    {
      "id": "a505c330-d2e3-4fca-b34f-6bdc776d755e",
      "name": "Prepare Post for X",
      "type": "@bufferapp/n8n-nodes-buffer.buffer",
      "position": [
        5728,
        1664
      ],
      "parameters": {
        "imageUrl": "={{ $json.urls.regular }}",
        "postText": "{{ $('Open AI Model').item.json.output[0].content[0].text.split('TWITTER:')[1].split('LINKEDIN:')[0].trim() }}",
        "resource": "post",
        "channelId": "6a416e5c5ab6d2f1068104d2|twitter",
        "attachmentType": "image",
        "organizationId": "6a416822c3e6309a0f12c56f"
      },
      "credentials": {
        "bufferApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "3afdf294-98f6-4dfc-ae48-9145a365c43f",
      "name": "Prepare Post for LinkedIn",
      "type": "@bufferapp/n8n-nodes-buffer.buffer",
      "position": [
        6016,
        1664
      ],
      "parameters": {
        "imageUrl": "={{ $('Fetch Random Image from Unsplash').item.json.urls.regular }}",
        "postText": "={{ $('OpenAI Content Generator').item.json.output[0].content[0].text.split('LINKEDIN:')[1].split('INSTAGRAM:')[0].trim() }}",
        "resource": "post",
        "channelId": "6a4176a35ab6d2f106813141|linkedin",
        "attachmentType": "image",
        "organizationId": "6a416822c3e6309a0f12c56f"
      },
      "credentials": {
        "bufferApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "3d8f1f04-f2ba-4c44-99e5-a52171ea6c86",
      "name": "Prepare Post for Instagram",
      "type": "@bufferapp/n8n-nodes-buffer.buffer",
      "position": [
        6304,
        1664
      ],
      "parameters": {
        "imageUrl": "={{ $('Fetch Random Image from Unsplash').item.json.urls.regular }}",
        "postText": "={{ $('OpenAI Content Generator').item.json.output[0].content[0].text.split('INSTAGRAM:')[1].trim() }}",
        "resource": "post",
        "channelId": "6a42309a5ab6d2f10683ac22|instagram",
        "attachmentType": "image",
        "organizationId": "6a416822c3e6309a0f12c56f"
      },
      "credentials": {
        "bufferApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1
    }
  ],
  "active": true,
  "settings": {
    "binaryMode": "separate",
    "executionOrder": "v1"
  },
  "versionId": "79646871-72cc-490d-86cf-b847e17d48e8",
  "nodeGroups": [],
  "connections": {
    "Prepare Post for X": {
      "main": [
        [
          {
            "node": "Prepare Post for LinkedIn",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "When RSS Feed Updates": {
      "main": [
        [
          {
            "node": "OpenAI Content Generator",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI Content Generator": {
      "main": [
        [
          {
            "node": "Fetch Random Image from Unsplash",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Prepare Post for LinkedIn": {
      "main": [
        [
          {
            "node": "Prepare Post for Instagram",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Fetch Random Image from Unsplash": {
      "main": [
        [
          {
            "node": "Prepare Post for X",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}

Credentials you'll need

Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.

• bufferApi
• openAiApi

About this workflow

This workflow polls an RSS feed for new articles, uses OpenAI to generate platform-specific copy for X, LinkedIn, and Instagram, pulls a related random image from the Unsplash API, and creates queued posts in Buffer for each social channel. Runs every hour and reads the latest…

Source: https://n8n.io/workflows/16688/ — original creator credit. Request a take-down →

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