Apexapi — AI Agent (any Model)

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 →

{
  "name": "ApexApi \u2014 AI Agent (any model)",
  "nodes": [
    {
      "parameters": {
        "content": "## \ud83e\udd16 AI Agent on any model (ApexApi)\n\nAn n8n **AI Agent** powered by any of 120+ models through one OpenAI-compatible key.\n\n### Setup (2 min)\n1. **Get a free API key:** https://apexapi.dev/?ref=n8n-ai-agent-any-model\n2. Open the *ApexApi Chat Model* node \u2192 create an **OpenAI** credential: API Key = your `ak-` key, **Base URL** = `https://api.apexapi.dev/v1`.\n3. Pick any model from https://apexapi.dev/models (e.g. `anthropic/claude-haiku-4-5`) and chat.\n\nPowered by ApexApi \u00b7 https://apexapi.dev",
        "height": 420,
        "width": 360
      },
      "id": "aaaa0003-aaaa-aaaa-aaaa-aaaaaaaaaa03",
      "name": "ApexApi setup",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -780,
        -80
      ]
    },
    {
      "parameters": {
        "options": {}
      },
      "id": "dddddddd-dddd-dddd-dddd-dddddddddddd",
      "name": "When chat message received",
      "type": "@n8n/n8n-nodes-langchain.chatTrigger",
      "typeVersion": 1.1,
      "position": [
        260,
        300
      ]
    },
    {
      "parameters": {
        "options": {}
      },
      "id": "eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee",
      "name": "AI Agent",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "typeVersion": 1.7,
      "position": [
        520,
        300
      ]
    },
    {
      "parameters": {
        "model": "anthropic/claude-fable-5",
        "options": {}
      },
      "id": "ffffffff-ffff-ffff-ffff-ffffffffffff",
      "name": "ApexApi Chat Model (via OpenAI base URL)",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "typeVersion": 1,
      "position": [
        520,
        520
      ],
      "notes": "Set the OpenAI credential Base URL to https://api.apexapi.dev/v1 and use your ApexApi ak- key. Then type any ApexApi model slug in Model."
    }
  ],
  "connections": {
    "When chat message received": {
      "main": [
        [
          {
            "node": "AI Agent",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "ApexApi Chat Model (via OpenAI base URL)": {
      "ai_languageModel": [
        [
          {
            "node": "AI Agent",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {},
  "active": false
}

About this workflow

ApexApi — AI Agent (any model). Uses chatTrigger, agent, lmChatOpenAi. Chat trigger; 4 nodes.

Source: https://github.com/apexapi/apexapi-n8n/blob/main/templates/03-ai-agent-any-model/workflow.json — original creator credit. Request a take-down →

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