Automated Trello Board Summarization with GPT-5-Nano

This workflow pulls a Trello board → lists → cards, maps key fields (board, list, task names/descriptions), and asks OpenAI to summarize the board.

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⚙️ Setup Instructions

1️⃣ Connect Trello (Developer API)

1. Get your API key: https://trello.com/app-key
2. Generate a token (from the same page → Token), or use:
   https://trello.com/1/authorize?expiration=never&name=n8n&scope=read,write&response_type=token&key=YOUR_API_KEY
3. In n8n → Credentials → New → Trello API, paste API Key and Token, save.
4. Open each Trello node (Get Board, Get Lists, Get Cards) and select your Trello credential.

2️⃣ Set Up OpenAI

1. Create an API key: https://platform.openai.com/api-keys
2. (If needed) Add billing: https://platform.openai.com/settings/organization/billing/overview
3. In n8n → Credentials → New → OpenAI, paste your key, save.
4. In the OpenAI Chat Model node, pick your credential and model (e.g., gpt-5-nano).

3️⃣ Add Your Board URL to “Get Board”

1. Copy your Trello board URL (e.g., https://trello.com/b/DCpuJbnd/administrative-tasks).
2. Open the Get Board node → Resource: Board, Operation: Get.
3. In ID, choose URL mode and paste the board URL.
   • The node will resolve the board and output its id → used by Get Lists / Get Cards.

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▶️ Run

• Click Execute Workflow.
• The final Summarize Tasks step returns a concise board summary.

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📬 Contact

📧 [email protected]
🔗 Robert Breen
🌐 ynteractive.com