Topic Planner (claude)

The workflow JSON

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{
  "id": "topic-planner-claude-v1",
  "name": "Topic Planner (Claude)",
  "nodes": [
    {
      "parameters": {},
      "id": "9b2f9a30-4a1c-4f4f-9a01-000000000001",
      "name": "When clicking 'Test workflow'",
      "type": "n8n-nodes-base.manualTrigger",
      "typeVersion": 1,
      "position": [
        240,
        300
      ]
    },
    {
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "f1f1f1f1-0000-0000-0000-000000000001",
              "name": "topic",
              "value": "How does prompt caching work in the Anthropic API?",
              "type": "string"
            }
          ]
        },
        "options": {}
      },
      "id": "9b2f9a30-4a1c-4f4f-9a01-000000000002",
      "name": "Set Topic",
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        460,
        300
      ]
    },
    {
      "parameters": {
        "method": "POST",
        "url": "https://api.anthropic.com/v1/messages",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "x-api-key",
              "value": "={{ $env.ANTHROPIC_API_KEY }}"
            },
            {
              "name": "anthropic-version",
              "value": "2023-06-01"
            },
            {
              "name": "content-type",
              "value": "application/json"
            }
          ]
        },
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={\n  \"model\": \"claude-haiku-4-5-20251001\",\n  \"max_tokens\": 1024,\n  \"system\": \"You are a research planner. Given a topic, reply with a numbered list of 3 concise, actionable research steps. No preamble.\",\n  \"messages\": [\n    { \"role\": \"user\", \"content\": {{ JSON.stringify($json.topic) }} }\n  ]\n}",
        "options": {}
      },
      "id": "9b2f9a30-4a1c-4f4f-9a01-000000000003",
      "name": "Anthropic Messages",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        680,
        300
      ]
    },
    {
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "f1f1f1f1-0000-0000-0000-000000000002",
              "name": "topic",
              "value": "={{ $('Set Topic').item.json.topic }}",
              "type": "string"
            },
            {
              "id": "f1f1f1f1-0000-0000-0000-000000000003",
              "name": "plan",
              "value": "={{ $json.content[0].text }}",
              "type": "string"
            }
          ]
        },
        "options": {}
      },
      "id": "9b2f9a30-4a1c-4f4f-9a01-000000000004",
      "name": "Extract Plan",
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        900,
        300
      ]
    }
  ],
  "connections": {
    "When clicking 'Test workflow'": {
      "main": [
        [
          {
            "node": "Set Topic",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Set Topic": {
      "main": [
        [
          {
            "node": "Anthropic Messages",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Anthropic Messages": {
      "main": [
        [
          {
            "node": "Extract Plan",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1"
  }
}

About this workflow

Topic Planner (Claude). Uses httpRequest. Event-driven trigger; 4 nodes.

Source: https://github.com/prashantkul/agent-assignment-3/blob/f53b76895e484ce1c5473dab9701db14a09444d9/workflows/topic-planner.json — original creator credit. Request a take-down →

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