This workflow follows the Agent → HTTP Request recipe pattern — see all workflows that pair these two integrations.
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": "Synka SaaS - Master Workflow (COMPLETO)",
"nodes": [
{
"parameters": {
"httpMethod": "POST",
"path": "saas-agendamentos",
"responseMode": "onReceived",
"options": {}
},
"id": "Webhook",
"name": "Webhook",
"type": "n8n-nodes-base.webhook",
"typeVersion": 2.1,
"position": [
200,
300
]
},
{
"parameters": {
"url": "https://somar-clinicas-consutorios.vercel.app/api/n8n/empresa-by-whatsapp",
"method": "GET",
"sendQuery": true,
"queryParameters": {
"parameters": [
{
"name": "numero_wa",
"value": "={{ $node[\"Webhook\"].json.body?.to || $node[\"Webhook\"].json.to || $node[\"Webhook\"].json.data?.to || $node[\"Webhook\"].json.destination }}"
}
]
},
"options": {}
},
"id": "IdentificarEmpresa",
"name": "Identificar Empresa",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.1,
"position": [
420,
300
]
},
{
"parameters": {
"jsCode": "const wh = $node['Webhook'].json;\nconst emp = $node['Identificar Empresa'].json;\n\n// Identifica\u00e7\u00e3o do Remetente (Cliente)\nconst rawFrom = wh?.data?.from || wh?.body?.data?.from || wh?.body?.from || wh?.from || wh?.sender_number || '';\nconst sessionId = rawFrom.split('@')[0] || 'default_session';\n\n// Mensagem do Cliente\nconst message = wh?.data?.body || wh?.body?.data?.body || wh?.body?.message || wh?.body?.body || wh?.message || String(wh?.body || '');\n\n// Dados da Empresa (Identificados dinamicamente)\nreturn [{\n json: {\n sessionId,\n from: rawFrom,\n message,\n tenantId: emp.empresa_id,\n nomeEmpresa: emp.nome_empresa,\n systemPrompt: emp.instrucoes_ia,\n // Fallbacks para inst\u00e2ncias de envio se n\u00e3o mapeado no DB\n instanceId: emp.config?.instanceId || 'instance156799',\n ultraMsgToken: emp.config?.ultraMsgToken || 'nbk60ugo4t1craq9'\n }\n}];"
},
"id": "PrepareData",
"name": "PrepareData",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
640,
300
]
},
{
"parameters": {
"promptType": "define",
"text": "={{ $json.message }}",
"options": {
"systemMessage": "={{ $json.systemPrompt }}",
"agent": "tools",
"maxIterations": 10
}
},
"id": "Maya",
"name": "Maya",
"type": "@n8n/n8n-nodes-langchain.agent",
"typeVersion": 2,
"position": [
860,
300
]
},
{
"parameters": {
"sessionIdType": "customKey",
"sessionKey": "={{ $json.sessionId }}",
"contextWindowLength": 15
},
"id": "Memory",
"name": "Memory",
"type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
"typeVersion": 1.3,
"position": [
860,
520
]
},
{
"parameters": {
"modelName": "models/gemini-2.0-flash",
"options": {
"temperature": 0.7
}
},
"credentials": {
"googlePalmApi": {
"name": "<your credential>"
}
},
"id": "Gemini",
"name": "Gemini",
"type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
"typeVersion": 1,
"position": [
760,
520
]
},
{
"parameters": {
"name": "tool_availability",
"description": "Busca horarios disponiveis no Synka para uma data e profissional. Parametros: {date} (YYYY-MM-DD) e {profissionalId}.",
"url": "https://somar-clinicas-consutorios.vercel.app/api/bot/availability?date={date}&profissionalId={profissionalId}&tenantId={{ $json.tenantId }}",
"method": "GET",
"placeholderDefinitions": {
"values": [
{
"name": "date",
"description": "Data desejada no formato YYYY-MM-DD. Ex: 2026-03-24",
"type": "string"
},
{
"name": "profissionalId",
"description": "ID do profissional",
"type": "string"
}
]
}
},
"id": "tool_availability",
"name": "tool_availability",
"type": "@n8n/n8n-nodes-langchain.toolHttpRequest",
"typeVersion": 1,
"position": [
960,
520
]
},
{
"parameters": {
"name": "consultar_agendamentos",
"description": "Lista agendamentos futuros do paciente no Synka. Parametro {phone} com apenas digitos do telefone.",
"url": "https://somar-clinicas-consutorios.vercel.app/api/bot/appointments?phone={phone}&tenantId={{ $json.tenantId }}",
"method": "GET",
"placeholderDefinitions": {
"values": [
{
"name": "phone",
"description": "Numero de telefone do paciente apenas com digitos. Ex: 5585999999999",
"type": "string"
}
]
}
},
"id": "tool_list",
"name": "tool_list",
"type": "@n8n/n8n-nodes-langchain.toolHttpRequest",
"typeVersion": 1,
"position": [
1080,
520
]
},
{
"parameters": {
"name": "tool_book",
"description": "Cria um novo agendamento no Synka. Parametros: {nome}, {dataHora} (ISO 8601), {profissionalId} e {servicoId}.",
"method": "POST",
"url": "https://somar-clinicas-consutorios.vercel.app/api/bot/appointments?nome={nome}&dataHora={dataHora}&profissionalId={profissionalId}&servicoId={servicoId}&pacienteTelefone={{ $json.sessionId }}&tenantId={{ $json.tenantId }}",
"placeholderDefinitions": {
"values": [
{
"name": "nome",
"description": "Nome completo do paciente",
"type": "string"
},
{
"name": "dataHora",
"description": "Data e hora do agendamento no formato ISO 8601. Ex: 2026-03-24T15:00:00",
"type": "string"
},
{
"name": "profissionalId",
"description": "ID do profissional selecionado",
"type": "string"
},
{
"name": "servicoId",
"description": "ID do servi\u00e7o selecionado",
"type": "string"
}
]
}
},
"id": "tool_book",
"name": "tool_book",
"type": "@n8n/n8n-nodes-langchain.toolHttpRequest",
"typeVersion": 1,
"position": [
1200,
520
]
},
{
"parameters": {
"name": "cancelar_remarcar",
"description": "Cancela ou remarca um agendamento no Synka. Parametros: {id} ID do agendamento, {status} cancelado ou remarcado. Para remarcar inclua {dataHora} no formato ISO 8601.",
"method": "PUT",
"url": "https://somar-clinicas-consutorios.vercel.app/api/bot/appointments/{id}?status={status}&dataHora={dataHora}&tenantId={{ $json.tenantId }}",
"placeholderDefinitions": {
"values": [
{
"name": "id",
"description": "ID do agendamento",
"type": "string"
},
{
"name": "status",
"description": "Novo status: cancelado ou remarcado",
"type": "string"
},
{
"name": "dataHora",
"description": "Nova data/hora se for remarcar (ISO 8601). Deixar vazio se for cancelar.",
"type": "string"
}
]
}
},
"id": "tool_cancel",
"name": "tool_cancel",
"type": "@n8n/n8n-nodes-langchain.toolHttpRequest",
"typeVersion": 1,
"position": [
1320,
520
]
},
{
"parameters": {
"method": "POST",
"url": "=https://api.ultramsg.com/{{ $node[\"PrepareData\"].json.instanceId }}/messages/chat",
"sendBody": true,
"bodyParameters": {
"parameters": [
{
"name": "token",
"value": "={{ $node[\"PrepareData\"].json.ultraMsgToken }}"
},
{
"name": "to",
"value": "={{ $node[\"PrepareData\"].json.from }}"
},
{
"name": "body",
"value": "={{ $json.output }}"
}
]
},
"options": {}
},
"id": "UltraMsg",
"name": "UltraMsg",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.1,
"position": [
1100,
300
]
}
],
"connections": {
"Webhook": {
"main": [
[
{
"node": "Identificar Empresa",
"type": "main",
"index": 0
}
]
]
},
"Identificar Empresa": {
"main": [
[
{
"node": "PrepareData",
"type": "main",
"index": 0
}
]
]
},
"PrepareData": {
"main": [
[
{
"node": "Maya",
"type": "main",
"index": 0
}
]
]
},
"Maya": {
"main": [
[
{
"node": "UltraMsg",
"type": "main",
"index": 0
}
]
]
},
"Memory": {
"ai_memory": [
[
{
"node": "Maya",
"type": "ai_memory",
"index": 0
}
]
]
},
"Gemini": {
"ai_languageModel": [
[
{
"node": "Maya",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"tool_availability": {
"ai_tool": [
[
{
"node": "Maya",
"type": "ai_tool",
"index": 0
}
]
]
},
"tool_list": {
"ai_tool": [
[
{
"node": "Maya",
"type": "ai_tool",
"index": 0
}
]
]
},
"tool_book": {
"ai_tool": [
[
{
"node": "Maya",
"type": "ai_tool",
"index": 0
}
]
]
},
"tool_cancel": {
"ai_tool": [
[
{
"node": "Maya",
"type": "ai_tool",
"index": 0
}
]
]
},
"tool_metadata": {
"ai_tool": [
[
{
"node": "Maya",
"type": "ai_tool",
"index": 0
}
]
]
},
"tool_professionals_by_service": {
"ai_tool": [
[
{
"node": "Maya",
"type": "ai_tool",
"index": 0
}
]
]
},
"tool_client_info": {
"ai_tool": [
[
{
"node": "Maya",
"type": "ai_tool",
"index": 0
}
]
]
}
},
"settings": {
"executionOrder": "v1"
}
}
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.
googlePalmApi
Pro
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About this workflow
Synka SaaS - Master Workflow (COMPLETO). Uses httpRequest, agent, memoryBufferWindow, lmChatGoogleGemini. Webhook trigger; 11 nodes.
Source: https://github.com/graphwell/synka/blob/fa9ef705b296a7543b69196a5a5abf2334d6306a/n8n/workflow.json — original creator credit. Request a take-down →
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