DaoXE Multi-Model Chat with Automatic Fallback

{
  "meta": {
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  "name": "DaoXE Multi-Model Chat with Automatic Fallback",
  "tags": [
    {
      "name": "DaoXE"
    }
  ],
  "nodes": [
    {
      "id": "11111111-0000-4000-8000-000000000001",
      "name": "Sticky Note",
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      "parameters": {
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        "content": "## DaoXE multi-model fallback (one API key)\n\n**What it does:** calls a primary model on DaoXE; if that request errors, it automatically retries the same prompt on a fallback model — all through **one** OpenAI-compatible key and **one** Base URL (`https://daoxe.com/v1`).\n\n### Setup (2 minutes)\n1. **Credentials → New → Header Auth** — Name: `Authorization`, Value: `Bearer <YOUR_DAOXE_API_KEY>`. Select it in both HTTP nodes.\n2. Open **Set inputs** and replace `YOUR_DAOXE_MODEL_ID` / `YOUR_DAOXE_FALLBACK_MODEL_ID` with two exact model IDs available to your account (from your DaoXE dashboard or `GET /v1/models` — do not hardcode a list from a blog post).\n3. Click **Test workflow**.\n\nDaoXE is a multi-model, multi-protocol gateway. Not available in mainland China.\nhttps://daoxe.com"
      },
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    },
    {
      "id": "11111111-0000-4000-8000-000000000002",
      "name": "When clicking 'Test workflow'",
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    {
      "id": "11111111-0000-4000-8000-000000000003",
      "name": "Set inputs",
      "type": "n8n-nodes-base.set",
      "position": [
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      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "a0000000-0000-0000-0000-000000000001",
              "name": "prompt",
              "type": "string",
              "value": "Give me three punchy blog-post titles about honest, no-swapping AI API gateways."
            },
            {
              "id": "a0000000-0000-0000-0000-000000000002",
              "name": "system",
              "type": "string",
              "value": "You are a concise, helpful assistant. Answer in plain text."
            },
            {
              "id": "a0000000-0000-0000-0000-000000000003",
              "name": "primary_model",
              "type": "string",
              "value": "YOUR_DAOXE_MODEL_ID"
            },
            {
              "id": "a0000000-0000-0000-0000-000000000004",
              "name": "fallback_model",
              "type": "string",
              "value": "YOUR_DAOXE_FALLBACK_MODEL_ID"
            }
          ]
        }
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      "typeVersion": 3.4
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      "id": "11111111-0000-4000-8000-000000000004",
      "name": "Primary model (DaoXE)",
      "type": "n8n-nodes-base.httpRequest",
      "onError": "continueErrorOutput",
      "position": [
        460,
        120
      ],
      "parameters": {
        "url": "https://daoxe.com/v1/chat/completions",
        "method": "POST",
        "options": {},
        "jsonBody": "={\n  \"model\": {{ JSON.stringify($json.primary_model) }},\n  \"messages\": [\n    { \"role\": \"system\", \"content\": {{ JSON.stringify($json.system) }} },\n    { \"role\": \"user\", \"content\": {{ JSON.stringify($json.prompt) }} }\n  ]\n}",
        "sendBody": true,
        "sendHeaders": true,
        "specifyBody": "json",
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "headerParameters": {
          "parameters": [
            {
              "name": "Content-Type",
              "value": "application/json"
            }
          ]
        }
      },
      "credentials": {
        "httpHeaderAuth": {
          "id": "REPLACE_WITH_YOUR_CREDENTIAL_ID",
          "name": "DaoXE (Header Auth)"
        }
      },
      "typeVersion": 4.2
    },
    {
      "id": "11111111-0000-4000-8000-000000000005",
      "name": "Fallback model (DaoXE)",
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      "position": [
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      ],
      "parameters": {
        "url": "https://daoxe.com/v1/chat/completions",
        "method": "POST",
        "options": {},
        "jsonBody": "={\n  \"model\": {{ JSON.stringify($('Set inputs').item.json.fallback_model) }},\n  \"messages\": [\n    { \"role\": \"system\", \"content\": {{ JSON.stringify($('Set inputs').item.json.system) }} },\n    { \"role\": \"user\", \"content\": {{ JSON.stringify($('Set inputs').item.json.prompt) }} }\n  ]\n}",
        "sendBody": true,
        "sendHeaders": true,
        "specifyBody": "json",
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "headerParameters": {
          "parameters": [
            {
              "name": "Content-Type",
              "value": "application/json"
            }
          ]
        }
      },
      "credentials": {
        "httpHeaderAuth": {
          "id": "REPLACE_WITH_YOUR_CREDENTIAL_ID",
          "name": "DaoXE (Header Auth)"
        }
      },
      "typeVersion": 4.2
    },
    {
      "id": "11111111-0000-4000-8000-000000000006",
      "name": "Answer (primary)",
      "type": "n8n-nodes-base.set",
      "position": [
        680,
        60
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "b0000000-0000-0000-0000-000000000001",
              "name": "answer",
              "type": "string",
              "value": "={{ $json.choices[0].message.content }}"
            },
            {
              "id": "b0000000-0000-0000-0000-000000000002",
              "name": "served_model",
              "type": "string",
              "value": "={{ $json.model }}"
            },
            {
              "id": "b0000000-0000-0000-0000-000000000003",
              "name": "via",
              "type": "string",
              "value": "primary"
            }
          ]
        }
      },
      "typeVersion": 3.4
    },
    {
      "id": "11111111-0000-4000-8000-000000000007",
      "name": "Answer (fallback)",
      "type": "n8n-nodes-base.set",
      "position": [
        900,
        300
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "c0000000-0000-0000-0000-000000000001",
              "name": "answer",
              "type": "string",
              "value": "={{ $json.choices[0].message.content }}"
            },
            {
              "id": "c0000000-0000-0000-0000-000000000002",
              "name": "served_model",
              "type": "string",
              "value": "={{ $json.model }}"
            },
            {
              "id": "c0000000-0000-0000-0000-000000000003",
              "name": "via",
              "type": "string",
              "value": "fallback"
            }
          ]
        }
      },
      "typeVersion": 3.4
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  "connections": {
    "Set inputs": {
      "main": [
        [
          {
            "node": "Primary model (DaoXE)",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Primary model (DaoXE)": {
      "main": [
        [
          {
            "node": "Answer (primary)",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Fallback model (DaoXE)",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Fallback model (DaoXE)": {
      "main": [
        [
          {
            "node": "Answer (fallback)",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "When clicking 'Test workflow'": {
      "main": [
        [
          {
            "node": "Set inputs",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
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