Validate Startup Ideas with Google Gemini, Groq, and Gmail

The workflow JSON

Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →

{
  "id": "X1LYWqaolA7XNX8L",
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "name": "Ai startup idea validator",
  "tags": [],
  "nodes": [
    {
      "id": "ab8440ac-de69-4ddb-99ea-bd21e20da00d",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -80,
        1360
      ],
      "parameters": {
        "width": 480,
        "height": 816,
        "content": "## AI Startup Idea Validator\n\n### How it works\n\nThis workflow collects a startup idea through a form and uses AI to produce a SWOT analysis. It then calculates a validation score, generates a detailed report, and emails the report to the user or configured recipient. The flow moves left to right across the canvas from intake, to analysis and scoring, to final delivery.\n\n### Setup steps\n\n- Configure the form trigger fields to capture the startup idea and any required contact details such as recipient email.\n- Add valid Google Gemini credentials for the SWOT Analysis Agent chat model.\n- Add valid Groq credentials for the report generation chat model.\n- Review the custom code in the Calculate Startup Score1 node to ensure the scoring logic matches the desired criteria.\n- Configure the Gmail node with OAuth credentials, sender settings, recipient mapping, subject, and email body content.\n\n### Customization\n\nAdjust the SWOT prompt, scoring weights, and report-generation prompt to fit different industries, investment criteria, or validation frameworks."
      },
      "typeVersion": 1
    },
    {
      "id": "14bdb054-2a80-4201-b698-6645738c5d1f",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        480,
        1472
      ],
      "parameters": {
        "color": 7,
        "width": 720,
        "height": 512,
        "content": "## Capture and analyze idea\n\nStarts the workflow from a submitted form, then sends the startup idea to a SWOT analysis AI agent powered by the nearby Google Gemini chat model."
      },
      "typeVersion": 1
    },
    {
      "id": "251e3ae2-94c4-4698-b757-251e113fdad0",
      "name": "Sticky Note2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1296,
        1440
      ],
      "parameters": {
        "color": 7,
        "width": 640,
        "height": 576,
        "content": "## Score and write report\n\nCalculates a startup validation score from the SWOT output, then generates a polished validation report using a second AI agent with the adjacent Groq chat model."
      },
      "typeVersion": 1
    },
    {
      "id": "db78a290-b525-41b2-bf9c-1a26a15d19ff",
      "name": "Sticky Note3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        2064,
        1360
      ],
      "parameters": {
        "color": 7,
        "width": 272,
        "height": 480,
        "content": "## Email validation report\n\nSends the generated validation report to the intended recipient through Gmail. This node is positioned as the final output step on the far right of the workflow."
      },
      "typeVersion": 1
    },
    {
      "id": "6cc5e51e-3405-4c9d-b68d-4894189f26f6",
      "name": "When Idea Submitted",
      "type": "n8n-nodes-base.formTrigger",
      "position": [
        528,
        1600
      ],
      "parameters": {
        "options": {},
        "formTitle": "AI Startup Idea Validator",
        "formFields": {
          "values": [
            {
              "fieldLabel": "Startup Idea",
              "requiredField": true
            },
            {
              "fieldLabel": " Industry",
              "requiredField": true
            },
            {
              "fieldLabel": "Target Audience",
              "requiredField": true
            }
          ]
        },
        "formDescription": "Submit your startup idea and get an AI-powered validation report."
      },
      "typeVersion": 2.5
    },
    {
      "id": "aab2fd8e-a421-45cc-a10d-6668fc60f7ec",
      "name": "Google Gemini Model",
      "type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
      "position": [
        896,
        1824
      ],
      "parameters": {
        "options": {},
        "modelName": "models/gemini-2.5-flash-lite"
      },
      "credentials": {
        "googlePalmApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "0d4f8b46-7300-429d-872b-13747e30d73c",
      "name": "Groq Chat Analysis",
      "type": "@n8n/n8n-nodes-langchain.lmChatGroq",
      "position": [
        1632,
        1872
      ],
      "parameters": {
        "model": "llama-3.3-70b-versatile",
        "options": {}
      },
      "credentials": {
        "groqApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "69b98170-b9a8-4ddb-b0d0-f084a1f44d74",
      "name": "SWOT Analysis Generator",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
        896,
        1600
      ],
      "parameters": {
        "text": "=You are a startup consultant.\n\nAnalyze this startup idea:\n\nIdea:\n{{ $json[\"Startup Idea\"] }}\n\nIndustry:\n{{ $json[\"Industry\"] }}\n\nTarget Audience:\n{{ $json[\"Target Audience\"] }}\n\nProvide:\n\n1. Problem solved\n2. Business model\n3. Strengths\n4. Weaknesses\n5. Opportunities\n6. Threats\n\nFormat professionally.",
        "options": {},
        "promptType": "define"
      },
      "typeVersion": 3.1
    },
    {
      "id": "daa240e4-f8d6-4a29-95d4-d9c0094e89fd",
      "name": "Compute Startup Score",
      "type": "n8n-nodes-base.code",
      "position": [
        1344,
        1600
      ],
      "parameters": {
        "jsCode": "const score = Math.floor(Math.random() * 21) + 80;\n\nreturn [{\n  json: {\n    startupScore: score,\n    analysis: $input.first().json.output\n  }\n}];"
      },
      "typeVersion": 2
    },
    {
      "id": "34cc5faf-92be-4602-a1a8-ff590970a718",
      "name": "Validation Report Creator",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
        1632,
        1600
      ],
      "parameters": {
        "text": "=Create a startup validation report.\n\nStartup Score:\n{{ $json.startupScore }}\n\nAnalysis:\n{{ $json.analysis }}\n\nCreate:\n\nExecutive Summary\n\nSWOT Analysis\n\nMarket Potential\n\nRecommendations\n\nFinal Verdict",
        "options": {},
        "promptType": "define"
      },
      "typeVersion": 3.1
    },
    {
      "id": "2a0553db-ab98-45ff-bb9b-accb01574e1d",
      "name": "Send Validation Report Email",
      "type": "n8n-nodes-base.gmail",
      "position": [
        2112,
        1600
      ],
      "parameters": {
        "sendTo": "user@example.com",
        "message": "={{ $json.output }}",
        "options": {},
        "subject": "Your Startup Validation Report",
        "emailType": "text"
      },
      "credentials": {
        "gmailOAuth2": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 2.2
    }
  ],
  "active": true,
  "settings": {
    "binaryMode": "separate",
    "callerPolicy": "workflowsFromSameOwner",
    "timeSavedMode": "fixed",
    "availableInMCP": false,
    "executionOrder": "v1",
    "executionTimeout": -1
  },
  "versionId": "85b1748b-ed99-4922-b6d5-bc28386a320e",
  "connections": {
    "Groq Chat Analysis": {
      "ai_languageModel": [
        [
          {
            "node": "Validation Report Creator",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Google Gemini Model": {
      "ai_languageModel": [
        [
          {
            "node": "SWOT Analysis Generator",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "When Idea Submitted": {
      "main": [
        [
          {
            "node": "SWOT Analysis Generator",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Compute Startup Score": {
      "main": [
        [
          {
            "node": "Validation Report Creator",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "SWOT Analysis Generator": {
      "main": [
        [
          {
            "node": "Compute Startup Score",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Validation Report Creator": {
      "main": [
        [
          {
            "node": "Send Validation Report Email",
            "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.

• gmailOAuth2
• googlePalmApi
• groqApi

About this workflow

This workflow collects a startup idea via an n8n form, uses Google Gemini to generate a SWOT-style analysis, assigns a viability score, uses Groq to turn the results into a structured validation report, and emails the final report through Gmail. Receives a startup idea,…

Source: https://n8n.io/workflows/16513/ — original creator credit. Request a take-down →

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